16M Motor Grader Operator Controls Caterpillar

Note: Your machine may not be equipped with all of the controls that are described in this topic.

Illustration 1	g01414459
Overhead View

Illustration 2	g03721828
(1) Downshift switch (2) Wheel lean control (left) (3) Upshift switch (4) Wheel lean control (right) (5) Automatic articulation centering control (6) Steer left (7) Steer right (8) Blade lower and blade float for left side (9) Blade lift for left side (10) Articulation control (11) Blade sideshift control (left) (12) Blade sideshift control (right) (13) Blade lower and blade float for right side (14) Blade lift for the right side (15) Centershift control (left) (16) Centershift control (right) (17) Blade pitch control (forward) (18) Blade pitch control (backward) (19) Blade circle drive control (20) Horn (21) Turn signal switch (22) Auxiliary pod control roller (lever 1) (23) Auxiliary pod control roller (lever 2) (24) Auxiliary pod control roller (lever 3) (25) Auxiliary pod control roller (lever 4) (26) Auxiliary pod mini joystick (lever 5) (27) Auxiliary pod mini joystick (lever 5) (28) Auxiliary pod mini joystick (lever 6) (29) Auxiliary pod mini joystick (lever 6) (30) Grade Control Auto/Manual switch (Left Side) (31) Grade Control Increment/Decrement switch (Right Side) (32) Grade Control Increment/Decrement switch (Left Side) (33) Grade Control Side Shift Auto/Manual switch (34) Grade Control Auto/Manual switch (Right Side)

Illustration 3	g03722112
Advanced Control Joysticks with Grade Control (If Equipped) (1) Downshift switch (2) Wheel lean control (left) (3) Upshift switch (4) Wheel lean control (right) (5) Automatic articulation centering control (6) Steer left (7) Steer right (8) Blade lower and blade float for left side (9) Blade lift for left side (10) Articulation control (11) Blade sideshift control (left) (12) Blade sideshift control (right) (13) Blade lower and blade float for right side (14) Blade lift for the right side (15) Centershift control (left) (16) Centershift control (right) (17) Blade pitch control (forward) (18) Blade pitch control (backward) (19) Blade circle drive control (20) Horn (21) Turn signal switch (22) Auxiliary pod control roller (lever 1) (23) Auxiliary pod control roller (lever 2) (24) Auxiliary pod control roller (lever 3) (25) Auxiliary pod control roller (lever 4) (26) Auxiliary pod mini joystick (lever 5) (27) Auxiliary pod mini joystick (lever 5) (28) Auxiliary pod mini joystick (lever 6) (29) Auxiliary pod mini joystick (lever 6) (30) Grade Control Auto/Manual button (Left Side) (31) Grade Control Increment/Decrement roller (Right Side) (32) Grade Control Increment/Decrement roller (Left Side) (33) Grade Control Side Shift Auto/Manual button (34) Grade Control Auto/Manual button (Right Side) (35) Grade Control Cross Slope Favorites

Illustration 4	g03723057
Advanced Control Joysticks with Auxiliary Controls (If Equipped) (1) Downshift switch (2) Wheel lean control (left) (3) Upshift switch (4) Wheel lean control (right) (5) Automatic articulation centering control (6) Steer left (7) Steer right (8) Blade lower and blade float for left side (9) Blade lift for left side (10) Articulation control (11) Blade sideshift control (left) (12) Blade sideshift control (right) (13) Blade lower and blade float for right side (14) Blade lift for the right side (15) Centershift control (left) (16) Centershift control (right) (17) Blade pitch control (forward) (18) Blade pitch control (backward) (19) Blade circle drive control (20) Horn (21) Turn signal switch (22) Auxiliary pod control roller (lever 1) (23) Auxiliary pod control roller (lever 2) (24) Auxiliary pod control roller (lever 3) (25) Auxiliary pod control roller (lever 4) (26) Auxiliary pod mini joystick (lever 5) (27) Auxiliary pod mini joystick (lever 5) (28) Auxiliary pod mini joystick (lever 6) (29) Auxiliary pod mini joystick (lever 6) (36) Auxiliary control roller (lever 8) (37) Auxiliary control roller (lever 9) (38) Float button (39) Not Applicable (40) Not Applicable (41) Not Applicable

Illustration 5	g03724856
(42) Implement control roller (lever 6) (43) Implement control roller (lever 7)

Note: When the machine is shipped from the factory with an attachment implement installed, the implement is assigned to a factory default auxiliary control lever. The following table lists the default control lever assignments for factory installed attachments.

Note: The auxiliary control levers are programmable. The auxiliary control levers must be programmed by an authorized Cat dealer.

Table 1

M-Series Motor Grader Auxiliary Hydraulic Factory Default Control Lever Assignments
Attachments	Auxiliary Control Pod Levers						Stand-Alone Handle	Stand-Alone Handle
	Lever 1 (Float)	Lever 2	Lever 3	Lever 4 (Float)	Lever 5	Lever 6 (Float)	Lever 6 (Float)	Lever 7
Ripper								Ripper
Ripper, Plow							Plow Lift	Ripper
2 Function Wing, Plow, Ripper	Plow Lift				Wing Mast (Toe)	Wing Tilt 1		Ripper
2 Function Wing, 2 Function Plow, Ripper	Plow Lift	Dozer Angle			Wing Mast (Toe)	Wing Tilt 1		Ripper
2 Function Wing, 3 Function Plow, Ripper	Plow Lift	Dozer Angle	Dozer Angle		Wing Mast (Toe)	Wing Tilt 1		Ripper

Illustration 6	g03724853
(44) Door release lever

Illustration 7	g03724851
(45) Throttle resume/decel switch (46) Differential lock control (47) Transmission control switch

Illustration 8	g03724850
(48) Wrist rest height adjustment knob (49) Control pod fore/aft adjustment lever (50) Arm pad adjustment knob (51) Control pod vertical adjustment knob/switch

Illustration 9	g03724849
(52) Secondary steering test switch (53) Parking brake switch (54) Engine start switch (55) Accelerator control (56) Service brake control (57) Transmission modulator control (Inching pedal)

Illustration 10	g03724848
Type "A" and Type "B" (58) Warning beacon switch (59) Heated mirror switch (60) Defroster fan switch (61) Centershift lock switch (62) Heated glass switch (63) Left variable blade float (64) Variable blade float switch (65) Right variable blade float switch (66) Compression brake switch (67) Headlight dimmer switch (68) Blade cushion switch (69) Implement lockout switch (70) Access platform light switch (71) Cigar lighter (24 V) (72) Power port (12 V) (73) Throttle hold mode switch (74) Throttle set/accel switch (75) Hazard flasher switch (76) Autoshift switch (77) Snow wing light switch (78) Auto differential lock switch (79) Cab floodlight switch (80) Front and rear work light switch (81) Headlight and taillight switch (82) Bluetooth Microphone

Illustration 11	g03724846
(83) Fan speed switch (84) Temperature variable control (85) Air conditioner switch

Illustration 12	g03724845
(86) Rear window wiper/washer (87) Left door wiper/washer (88) Front window wiper/washer (89) Right door wiper/washer

Illustration 13	g03724844
(90) Side window wiper/washer switch

Downshift Switch (1)

Downshift Switch - Depress switch in order to downshift the transmission to the desired forward speed or the desired reverse speed.

Wheel Lean Control (Left) (2)

Wheel Lean LEFT - In order to lean the wheels to the left, press wheel lean control (left) button. When you release the control button, the wheel lean will remain in the selected position.

Note: Wheel lean will deactivate when wheel lean control (left) button and wheel lean control (right) button are pressed at the same time. Wheel lean will activate once both control buttons are released.

Upshift Switch (3)

Upshift Switch - Depress switch in order to upshift the transmission to the desired forward speed or the desired reverse speed.

Wheel Lean Control (Right) (4)

Wheel Lean RIGHT - In order to lean the wheels to the right, press wheel lean control (right) button . When you release the control button, the wheel lean will remain in the selected position.

Note: Wheel lean will deactivate when wheel lean control (left) button and wheel lean control (right) button are pressed at the same time. Wheel lean will activate once both control buttons are released.

Automatic Articulation Centering Control (5)

Automatic Articulation (Centering) - Press and release control button in order to return the machine articulation to the CENTER (NEUTRAL) position. The machine articulation will gradually move the machine to the CENTER position.

Note: Automatic articulation (centering) can be canceled by performing either of the following operations:

• Press control button again.

• Manually select a specific articulation with the left-hand joystick.

Joystick Steering

Show/hide table

NOTICE
The joystick steering system provides optimum control and ergonomic comfort. Allow appropriate time to familiarize yourself with the joystick steering controls at all speeds. It is important to maintain deliberate steering inputs and controlled steering inputs at all times.

Steer Left (6)

Steer LEFT - Move the left-hand joystick left in order to turn the front wheels to the left. When the joystick is released in the desired position, the front wheels will remain aligned with the joystick.

Steer Right (7)

Steer RIGHT - Move the left-hand joystick right in order to turn the front wheels to the right. When the joystick is released in the desired position, the joystick will remain in that position. The front wheels will remain aligned with the joystick.

Speed Sensitive Steering

This machine is equipped with speed sensitive steering. When the ground speed of the machine increases the maximum turning angle of the front wheels is reduced and allowable articulation is reduced. While steering, an increase in ground speed will cause a decrease in steering angle, without any joystick movement. A decrease in ground speed while steering will result in an increase in steering angle, without any joystick movement. In order to maintain a constant turn angle when you change ground speed, the joystick must be moved at a rate and a direction that corresponds to the rate of ground speed change.

When you operate this machine for the first time, care must be taken to obtain a feel of this steering rate change before you operate at high ground speeds, around obstacles or around other machinery.

Refer to Operation and Maintenance Manual, "Operator Controls - Articulation Control" for the relationship of articulation to ground speed.

Joystick Steering Alignment

Illustration 14	g01717143

For the steering control to be active, the left-hand joystick must be aligned in relation to the steering angle of the front wheels. If the left-hand joystick is not aligned, the steering indicator will illuminate and an "Event" will be displayed on Messenger. Refer to illustration 14. If the left-hand joystick is not aligned, you will be unable to steer. Disengage the parking brake or shift out of the NEUTRAL position unless the parking brake override required conditions have been met.

To align the left-hand joystick, perform the following:

1. The operator must be in the seat and the engine must be running.

2. Engage the parking brake switch.

3. Position the left-hand joystick relative to the position of the front wheels

4. Slowly move the joystick slightly left and/or right to activate the steering control. Only a small amount of slow joystick movement should be required. If needed, slowly expand your left or right movement. If the joystick is moved too quickly the steering control may not activate.

   When you have properly aligned the left-hand joystick, the following will occur:

   • The front wheels move with the movement of the left-hand joystick.

   • The joystick alignment event disappears from the Messenger display. Refer to illustration 14.

   • The alert indicators for the steering system are not illuminated on the front dash.

   Note: If the steering angle is at full left turn or full right turn, wheel lean may be required to align the steering.

   Note: It is not recommended to sweep the left-hand joystick from the full left position to the full right position to align the steering.

5. After you obtain the steering joystick alignment, disengage the parking brake switch.

Note: To auto align the joystick, swipe the joystick from left to right, then right to left, and finally, left to right.

Secondary Steering

Show/hide table

If the secondary steering activates during operation, immediately park the machine in a safe location. Inspect the machine and correct the condition which made the use of the secondary steering necessary. Do not continue to operate the machine using the secondary steering. Personal injury or death can occur if steering is lost completely during operation.

Show/hide table

The machine's batteries must have a normal charge and the secondary steering electrical system must be in proper working condition. A low charge condition, or any defect in the battery, battery cells, or electrical circuit can cause loss of secondary steering and could result in personal injury and/or damage to the machine.

Show/hide table

NOTICE
Once the secondary steering pump has been activated, it should remain on for no more than one minute. This should be sufficient time to safely steer the machine to a stop. When the machine is stopped, turn the engine start switch to the OFF position in order to turn off the secondary steering. Prolonged use of the secondary steering pump will cause the electric motor to overheat and eventually fail.

Secondary Steering System - This machine is equipped with a secondary steering system. The secondary steering system consists of the following components: an electric motor that drives the secondary steering pump and a secondary steering control. The secondary steering pump will activate automatically when the main pump loses pressure, such as an implement pump failure or engine failure. The secondary steering pump, however, will not activate when both the engine speed and the transmission output speed (TOS) equal zero.The secondary steering control will activate automatically when the primary steering control system fails.

The transition from the primary steering to the secondary steering will occur in less than one second. The transition will vary depending on the speed of the machine. As the machine speed increases, the transition time decreases. When the secondary steering system is activated, the steer wheels automatically align to the angle of the joystick. Maintain deliberate and controlled movement of the joystick inputs to maintain the desired direction of travel.

Note: Engine start switch must be in the ON position in order for this system to operate.

Note: If a problem exists with the primary steering system or the secondary steering system, an alert indicator and an action light come on and an action alarm sounds at a pulse rate.

Primary Steering System Indicator - This alert indicator will illuminate when there is any problem with the primary steering system.

Secondary Steering System Indicator - This alert indicator will be amber in color when the secondary steering system is active or the secondary steering system is being tested. The alert indicator will be red in color when a problem with the secondary steering system exists.

Blade Lift Modulation

You may select one of three modulation options, for blade lift only, in order to suit your operating style and/or your application. Based on your application or operating preferences, it may be desirable to change your blade lift modulation responsiveness.

Each modulation map provides the same maximum cylinder speed. The joystick input required to achieve the maximum cylinder speed varies between modulation maps.

Blade Modulation Selections

• Fine: This setting requires the greatest amount of joystick movement to provide a given blade lift movement. This setting allows precise control of the blade lift cylinder.

• Normal: This setting requires a shorter amount of joystick movement to provide a given blade lift movement. This setting allows the ease of fine blade lift modulation and still provides the use of a "bump" type input.

• Coarse: This setting provides the shortest amount of joystick movement to provide a given blade lift movement. This setting allows the use of the "bump" type input with minimal joystick movement.

When you start the machine the Messenger display will show the current blade modulation selection. Press the OK button to make the display disappear. The selection will also disappear after 30 seconds. To change the blade modulation selection refer to the Operation and Maintenance Manual, "Monitoring System - Messenger Display" for more information. Refer to graphics 15, 16, 17 and 18 for the blade modulation displays that can be found on the Messenger display.

Illustration 15	g01922633

Illustration 16	g01922693

Illustration 17	g01922774

Illustration 18	g01922776

Blade Lower and Blade Float for the Left Side (8)

Blade LOWER - Push the left-hand joystick forward in order to lower the left end of the blade. When you release the joystick, the joystick will return to the HOLD position. The blade height will remain in the selected position.

Blade FLOAT - Push the left-hand joystick to the most forward DETENT position. When you release the joystick, the joystick will return to the HOLD position. The left side of the blade will remain in the FLOAT position until the joystick is moved forward or rearward.

Note: Extra effort may be necessary to push the left-hand joystick forward into the FLOAT (DETENT) position.

Blade Lift for the Left Side (9)

Blade LIFT - Pull the left-hand joystick rearward in order to raise the left end of the blade. When you release the joystick, the joystick will return to the HOLD position. The blade height will remain in the selected position.

Articulation Control (10)

Articulation RIGHT - In order to move the rear of the machine to the right, twist the left-hand joystick clockwise. When you release the joystick, the joystick will return to the HOLD position. The machine articulation will remain in the selected position.

Articulation LEFT - In order to move the rear of the machine to the left, twist the left-hand joystick counterclockwise. When you release the joystick, the joystick will return to the HOLD position. The machine articulation will remain in the selected position.

Note: When you operate the machine at 27 km/h (17 mph) or more you may not articulate past 5.5 degrees. If the machine is articulated 5.5 degrees you may not upshift past the six FORWARD position and you may not upshift past the five REVERSE position.

Blade Sideshift Control (Left) (11)

Blade Sideshift LEFT - Move the right-hand joystick left in order to sideshift the blade to the left. When you release the joystick, the joystick will return to the HOLD position. The blade sideshift will remain in the selected position.

Blade Sideshift Control (Right) (12)

Blade Sideshift RIGHT - Move the right-hand joystick right in order to sideshift the blade to the right. When you release the joystick, the joystick will return to the HOLD position. The blade sideshift will remain in the selected position.

Blade Lower and Blade Float for the Right Side (13)

Blade LOWER - Push the right-hand joystick forward in order to lower the right end of the blade. When you release the joystick, the joystick will return to the HOLD position. The blade height will remain in the selected position.

Blade FLOAT - Push the right-hand joystick to the most forward DETENT position. When you release the joystick, the joystick will return to the HOLD position. The right side of the blade will remain in the FLOAT position until the joystick is moved forward or rearward.

Note: Extra effort may be necessary to push the right-hand joystick forward into the FLOAT (DETENT) position.

Blade Lift for the Right Side (14)

Blade LIFT - Pull the right-hand joystick rearward in order to raise the right end of the blade. When you release the joystick, the joystick will return to the HOLD position. The blade height will remain in the selected position.

Centershift Control (Left) (15)

Centershift LEFT - In order to move the drawbar to the left, push the left side of the thumb button. When you release the thumb button, the thumb button will return to the HOLD position. The drawbar will remain in the selected position.

Centershift Control (Right) (16)

Centershift RIGHT - In order to move the drawbar to the right, push the right side of the thumb button. When you release the thumb button, the thumb button will return to the HOLD position. The drawbar will remain in the selected position.

Blade Pitch Control (Forward) (17)

Blade Pitch FORWARD - In order to pitch the blade forward, push the top of the thumb button. When you release the thumb button, the thumb button will return to the HOLD position. The blade pitch will remain in the selected position.

Blade Pitch Control (Backward) (18)

Blade Pitch BACKWARD - In order to pitch the blade backward, push the bottom of the thumb button. When you release the thumb button, the thumb button will return to the HOLD position. The blade pitch will remain in the selected position.

Implement Lockout Feature

Implement lockout is a feature that allows the customer to inhibit implement movement on an individual circuit basis. Implement lockout can help to prevent unintended implement movement during operation or possible misuse of the implements. Implement circuits included in this feature are: blade pitch, blade sideshift, wheel lean, centershift and articulation.

Note: The return-to-center functionality of the articulation circuit will remain active regardless of the configuration. If the articulation cylinders lose pressure over time, the return to center button will allow re-pressurization to prevent unintended movement about the articulation hitch. Implement Lockout configuration can be changed via Electronic Technician (ET). The default configuration for all circuits is "Not Locked Out".

An implement service mode can be enabled in Messenger to allow repositioning of the implements without the use of Electronic Technician (ET). The engine must be running and parking brake engaged in order to enable this implement service mode. The parking brake cannot be disengaged until the implement service mode is disabled. Once the implement service mode is disabled, the implements will be re-locked. The implement service mode can be accessed in Messenger from the main menu, select settings, then select Implement, then select service mode.

Blade Circle Drive Control (19)

Circle Drive CLOCKWISE - In order to rotate the blade in a clockwise direction, twist the right-hand joystick clockwise. When you release the joystick, the joystick will return to the HOLD position. The blade circle will remain in the selected position.

Circle Drive COUNTERCLOCKWISE - In order to rotate the blade in a counterclockwise direction, twist the right-hand joystick counterclockwise. When you release the joystick, the joystick will return to the HOLD position. The blade circle will remain in the selected position.

Blade Rotation Angle Limit

The blade rotation angle limit feature provides a configurable rotation limit to prevent unintended contact of the blade with other components on the machine such as tires, ladders, etc. This feature can be enabled in Electronic Technician (ET), by configuring the "Blade Rotation Angle Limit Enable Status". Once enabled, the blade rotation angle limit can be set between 0°and 160°, the blade rotation will be restricted to rotate in both directions up to the limit specified.

Note: The circle drive slip clutch will allow rotation of the blade outside of the configured limit if an external load is encountered that causes the slip clutch protection function. Once the blade is rotated back within the configured blade angle limits, the envelope of rotation will again be restricted.

Horn (20)

Horn - Depress button in order to sound the horn.

Turn Signal Switch (21)

Left Turn Signal - Push down on the left side of switch in order to activate the left turn signal. An indicator light will illuminate on the front dash. The left turn signal will remain on until the switch is manually returned to the MIDDLE position.

Right Turn Signal - Push down on the right side of switch in order to activate the right turn signal. An indicator light will illuminate on the front dash. The right turn signal will remain on until the switch is manually returned to the MIDDLE position.

Note: If the indicator lights do not illuminate, check the turn signals to ensure that the bulbs are working properly.

Auxiliary Pod (If Equipped)

If equipped, consult your Cat dealer for information regarding the specific configuration of your machine.

Auxiliary Pod Control Roller (Lever 1) (22)

EXTEND - Roll finger roller forward in order to extend the implement cylinder. When you release the finger roller, the finger roller will return to the HOLD position. The implement will remain in the selected position.

Note: Roll the finger roller to the most forward DETENT position in order to place the implement in the FLOAT position. An indicator light will illuminate next to the finger roller. The implement will remain in the FLOAT position until the finger roller is moved forward or moved rearward.

RETRACT - Roll the finger roller rearward in order to retract the implement cylinder. When you release the finger roller, the finger roller will return to the HOLD position. The implement will remain in the selected position.

Auxiliary Pod Control Roller (Lever 2) (23)

EXTEND - Roll finger roller forward in order to extend the implement cylinder. When you release the finger roller, the finger roller will return to the HOLD position. The implement will remain in the selected position.

RETRACT - Roll the finger roller rearward in order to retract the implement cylinder. When you release the finger roller, the finger roller will return to the HOLD position. The implement will remain in the selected position.

Auxiliary Pod Control Roller (Lever 3) (24)

EXTEND - Roll finger roller forward in order to extend the implement cylinder. When you release the finger roller, the finger roller will return to the HOLD position. The implement will remain in the selected position.

RETRACT - Roll the finger roller rearward in order to retract the implement cylinder. When you release the finger roller, the finger roller will return to the HOLD position. The implement will remain in the selected position.

Auxiliary Pod Control Roller (Lever 4) (25)

EXTEND - Roll finger roller forward in order to extend the implement cylinder. When you release the finger roller, the finger roller will return to the HOLD position. The implement will remain in the selected position.

Note: Roll the finger roller to the most forward DETENT position in order to place the implement in the FLOAT position. An indicator light will illuminate next to the finger roller. The implement will remain in the FLOAT position until the finger roller is moved forward or moved rearward.

RETRACT - Roll the finger roller rearward in order to retract the implement cylinder. When you release the finger roller, the finger roller will return to the HOLD position. The implement will remain in the selected position.

Auxiliary Pod Mini Joystick (Lever 5)

EXTEND - Push the mini joystick (26) forward in order to extend the implement cylinder. When you release the joystick, the joystick will return to the HOLD position. The implement will remain in the selected position.

RETRACT - Push the mini joystick (27) rearward in order to retract the implement cylinder. When you release the joystick, the joystick will return to the HOLD position. The implement will remain in the selected position.

Auxiliary Pod Mini Joystick (Lever 6)

RETRACT - Push the mini joystick (28) left in order to retract the implement cylinder. When you release the joystick, the joystick will return to the HOLD position. The implement will remain in the selected position.

EXTEND - Push the mini joystick (29) right in order to extend the implement cylinder. When you release the joystick, the joystick will return to the HOLD position. The implement will remain in the selected position.

Note: Push the mini joystick to the most right DETENT position in order to place the implement in the FLOAT position. An indicator light will illuminate on the mini joystick. The implement will remain in the FLOAT position until the joystick is moved right or moved left.

Cat^® Grade Control Cross Slope (If Equipped)

Show/hide table

Once the system is placed in automatic mode, blade movement may occur. Ensure that all personnel are clear of the blade before you place the system in automatic mode. Personal injury or death from crushing could occur.

The Cross Slope system is a high technology earthmoving tool that allows the operators to grade and fill with increased accuracy. The blade control system provides precise slope feedback to achieve accurate blade positioning.

Using Cross Slope

1. Disengage the parking brake.

2. Select the desired cross slope screen.

3. Set the desired cross slope.

4. Ensure that there is no articulation, the circle is centered, and no wheel lean.

5. Ensure the implements are not locked out.

6. Place the blade off the ground.

7. Place the desired side in "AUTO" mode.

8. Use the other joystick to control the height of the blade.

Grade Control Auto/Manual Switch (Left Side) (30) and Right Side (34)

Illustration 19	g02491536
Left Side

Illustration 20	g02491537
Right Side

Note: Cat^® Grade Control Cross Slope Auto/Manual Switch will always begin in the MANUAL control position

Press switch (30) to place the left side of the blade in AUTO control. Press switch (30) again to place the left side of the blade in the MANUAL position. An AUTO or MANUAL icon will be displayed on Messenger to indicate which control is being utilized.

Press switch (34) to place the right side of the blade in AUTO control. Press switch (34) again to place the right side of the blade in the MANUAL position. An AUTO or MANUAL icon will be displayed on Messenger to indicate which control is being utilized.

In the automatic state, the Cross Slope system controls one side of the blade to maintain the target cross slope. To enable the automatic control, all of the following conditions must be met:

• Parking brake must be disengaged

• Implements must be enabled

• No active diagnostics against any of the required inputs or outputs

• Operator must be present in the operator seat as indicated by the operator presence switch

• Display must be in one of the two cross slope screens

The manual state is the initial state of the system at power-up. Once the system is in automatic control, the manual state is activated by pressing and releasing the auto/manual switch. Other conditions that will cause the system to return to the manual state include:

• Vacating the operator seat, thus causing the operator presence switch to indicate the operator is not in the seat

• A diagnostic against a required input or output becomes active

• Implements are locked-out

• Navigating to any other screen except one of the two cross slope screens

While in the automatic state, the operator has the ability to override the automatic controls with the joystick. This state is called "Suspended Automatic" state. Automatic control of the blade will resume once the operator releases the joystick.

If the right lift cylinder is under the automatic control of the Cross Slope system, and the operator issues a manual command to retract the right lift cylinder, the system will enter the suspend automatic state. When the suspend automatic state is active, the blade will react to the operator command. Once the operator releases the joystick, the system will return to the automatic state and the blade will automatically return to the target cross slope.

The inactive automatic state occurs when the operator attempts to enable the automatic controls by pressing and releasing the auto/manual switch while a condition is present that prevents the automatic controls from being enabled. An icon on Messenger will flash at a rate of two times per second if the controls enter the "Inactive Automatics" state. These conditions include:

• Parking brake is set

• Implements are locked-out

• Active diagnostic on a required input or output is present

• After running automatics with the transmission in Neutral for more than 60 seconds.

• Operator is not present, as detected by the operator presence switch

• One of the two slope screens is not displayed

• A level three diagnostic for the implement control occurs

Grade Control Increment/Decrement Switch (Right Side) (31)

Increment/Decrement - Press the bottom of switch (31) in order to increase the target cross slope of the right side of the blade. Press the top of switch (31) in order to decrease the target cross slope of the right side of the blade.

Note: Pressing the top of switch (31) and (32) at the same time will switch the direction of the cross slope target.

Note: Pressing the bottom of switch (31) and (32) at the same time to set the target value to the current cross slope of the blade.

Grade Control Increment/Decrement Switch (Left Side) (32)

Increment/Decrement - Press the bottom of switch (32) in order to increase the target cross slope of the left side of the blade. Press the top of switch (32) in order to decrease the target cross slope of the left side of the blade.

Note: Pressing the top of switch (31) and (32) at the same time will switch the direction of the cross slope target.

Note: Pressing the bottom of switch (31) and (32) at the same time to set the target value to the current cross slope of the blade.

Grade Control Side Shift Auto/Manual Switch (33)

Side Shift Auto/Manual - This switch is only for use with AccuGrade 3D systems.

Cat^® Grade Control Cross Slope Favorites (If Equipped) (35)

Cross slope favorites allows quick access to stored cross slope targets. To store a favorite, first reach your desired target number, then press and hold the cross slope favorites button for two seconds. "Target" will be highlighted on your display to show that the favorite has been stored successfully. Nine favorites may be stored at any give time. If, after you have saved nine favorites you desire to save another favorite, you can override one of your saved favorites to do so. Scroll through to a saved cross slope favorites, simply press and hold the cross slope favorites button for two seconds to override the previously stored favorite.

Auxiliary Control Roller (Lever 8) (If Equipped) (36)

EXTEND - Roll finger roller forward in order to extend the implement cylinder. When you release the finger roller, the finger roller will return to the HOLD position. The implement will remain in the selected position.

RETRACT - Roll the finger roller rearward in order to retract the implement cylinder. When you release the finger roller, the finger roller will return to the HOLD position. The implement will remain in the selected position.

Auxiliary Control Roller (Lever 9) (If Equipped) (37)

EXTEND - Roll finger roller forward in order to extend the implement cylinder. When you release the finger roller, the finger roller will return to the HOLD position. The implement will remain in the selected position.

RETRACT - Roll the finger roller rearward in order to retract the implement cylinder. When you release the finger roller, the finger roller will return to the HOLD position. The implement will remain in the selected position.

Float Button (38)

Press the button to activate the float function, a green indicator will illuminate above the button to show that the float function has been activated. Press the button again to deactivate the float function. The green indicator will shut off to show that the float function has been deactivated.

Implement Control Roller (Lever 6) (If Equipped) (42)

Note: Consult your Cat dealer for information on specific configuration of your machine.

EXTEND - Roll thumb wheel downward in order to extend the implement cylinder. When you release the thumb wheel, the thumb wheel will return to the HOLD position. The implement will remain in the selected position.

Note: Roll the thumb wheel to the most downward DETENT position in order to place the implement in the FLOAT position. An indicator light will illuminate next to the thumb wheel. The implement will remain in the FLOAT position until the thumb wheel is moved upward or moved downward.

RETRACT - Roll the thumb wheel upward in order to retract the implement cylinder. When you release the thumb wheel, the thumb wheel will remain in the HOLD position. The implement will remain in the selected position.

Implement Control Roller (Lever 7) (If Equipped) (43)

EXTEND - Roll thumb wheel downward in order to extend the implement cylinder. When you release the thumb wheel, the thumb wheel will return to the HOLD position. The implement will remain in the selected position.

RETRACT - Roll the thumb wheel upward in order to retract the implement cylinder. When you release the thumb wheel, the thumb wheel will remain in the HOLD position. The implement will remain in the selected position.

Note: If Lever 7 is assigned to the ripper, a ripper autostow feature is available. To enable the autostow feature through the message display, navigate the "Settings" menu to the "Implement" section and enable "Ripper Autostow Status". Refer to Operation and Maintenance Manual, "Monitoring System" for more information on the message display and menus. To activate autostow, first, place the implement lockout switch in the UNLOCK position. Flip the thumb wheel forward twice, quickly, and release. The ripper will then be placed in the stowed position. To cancel the autostow command, roll the thumb wheel either forward or rearward.

Door Release Lever (44)

Pull the lever in order to release the door from the locked position. There is one lever on the right door and one lever on the left door.

Throttle Resume/Decel Switch (45)

Throttle Resume/Decel Switch - Pull back trigger switch on the right-hand joystick in order to resume engine speed to the previously selected speed. The trigger switch will only resume the engine speed if the throttle hold mode switch is in the AUTOMATIC mode and the trigger switch will only resume the engine speed after the service brakes have been applied or the accelerator control is moved. The trigger switch also provides the following functions:

• By holding the trigger switch, engine speed will be decreased by approximately 100 rpm/sec.

• By bumping the trigger switch, engine speed will be decreased by 100 rpm increments.

Differential Lock Control (46)

Show/hide table

NOTICE
To prevent damage to the differential, do not engage the differential lock control at high speeds. Do not turn machine with differential lock engaged. Do not engage the differential lock control while one wheel is spinning. Decrease engine rpm until the wheel stops spinning. Anticipate using the differential lock before wheel slippage occurs. In areas of high resistance, it may be necessary to turn the machine slightly in order to aid in unlocking the differential lock. Decreasing the engine rpm may also be helpful.

LOCK - Push control button on the right-hand joystick in order to lock the differential. When the differential is locked, an indicator light will illuminate on the front dash.

Note: The differential lock will help to prevent wheel slippage. Use the differential lock when you grade on soft ground or on wet ground. Engage the differential lock only when the wheels are not slipping.

UNLOCK - Push control button again in order to unlock the differential.

Lock the differential in order to increase the traction, as required.

Make sure that the differential is unlocked when you turn the machine or when you articulate the machine. Also, make sure that the differential is unlocked when you are roading the machine.

Show/hide table

NOTICE
Use of the differential lock when turning, articulating or roading may cause drive train component damage.

When one of the tandem wheels encounters loose surfaces or slippery surfaces, the differential lock will provide maximum traction at all times by eliminating wheel spin. Any excessive uncontrolled wheel spin can cause accelerated wear on certain components of the drive train. This is due to inadequate lubrication while the wheel is spinning.

Do not engage differential lock while one wheel is spinning. Decrease engine rpm until the wheel stops spinning. Anticipate using the differential lock before wheel slippage occurs.

When the differential lock control is in the AUTOMATIC mode the ECM will lock and/or unlock the differential based on certain machine conditions which include machine load and steer/articulation angle. The indicator for the differential lock will illuminate when the differential is locked. The feature will be disengaged when the machine is in the AUTOMATIC mode. and the gear setting is greater than 5F or 3R. Refer to Operation and Maintenance Manual, "Operator Controls - Auto Differential Lock Switch" for more information.

Transmission Control Switch (47)

FORWARD - From the NEUTRAL position, pull the bottom of trigger switch in order to move the machine forward. Use upshift switch on the left-hand joystick to upshift the transmission to the desired forward speed. Use downshift switch on the left-hand joystick to downshift the transmission to the desired forward speed.

NEUTRAL - Move trigger switch to the MIDDLE position in order to place the transmission in NEUTRAL.

REVERSE - From the NEUTRAL position, pull the top of trigger switch in order to move the machine in reverse. Use upshift switch on the left-hand joystick to upshift the transmission to the desired reverse speed. Use downshift switch on the left-hand joystick to downshift the transmission to the desired reverse speed.

Transmission Operation

Note: Under certain conditions, the transmission will neutralize and prevent engine stall when the service brakes are fully engaged and the inching pedal is not depressed. The tandem tires will stop rotating. The LCD display will display NEUTRAL as the actual gear, the operator requested gear will change to allow speed matched transmission re-engagement when the service brake is disengaged and the ground speed is greater than 6.5 km/h (4 mph). At ground speeds below 6.5 km/h (4 mph) the machine will remain in the NEUTRAL position until the transmission control switch is cycled to the NEUTRAL position and back to the operator requested gear.

The Power Shift Transmission has the following standard options:

• 8 forward gears

• 6 reverse gears

• Inching allows the operator to control the machine at infinitely variable low ground speeds when precise maneuverability is demanded.

The following methods may be used for shifting gears:

• Launching the machine from the NEUTRAL position

• Sequential speed shifting

• Shuttle shifting

Parking Brake Release

Before the operator can take control of the transmission the operator must perform the following sequence of interlock events:

1. The parking brake switch must be engaged.

2. The operator is present in the seat.

3. The transmission control switch is in the NEUTRAL position.

4. The left joystick is aligned with the front wheels. Refer to Operation and Maintenance Manual, "Operator Controls - Joystick Steering Alignment".

To disengage the parking brake, push the bottom of the parking brake switch . The operator now has control of the machine.

Show/hide table

If the operator leaves the seat while the machine is registering Transmission Output Speed (TOS), the operator presence system will not respond. If there is no Transmission Output Speed (TOS), then the park brake will engage and all hydraulic inputs are locked out.

If the operator leaves the seat while the parking brake switch is disengaged and the machine is not moving, the parking brake will automatically engage. Once the operator returns to the seat, the operator will need to reset the parking brake switch before the machine will operate. Push the top of the parking brake switch and then push the bottom of the parking brake switch . If the steering joystick was moved, repeat steps 1 through 4 to disengage the parking brake.

If the machine needs to be moved quickly in an emergency, please refer to Operation and Maintenance Manual, "Operation" in the Safety Section of the manual.

Launching the machine from the NEUTRAL position

The operator can engage the transmission into gear by the following two methods:

• Automodulation

• Inching into gear

When automodulating into gear, the direction clutch will engage in a smooth and controlled manner. This machine launch method was developed to be performed at all engine speeds without shortening the life of the transmission. The transmission controller will use the initial gear as the selected gear for automodulation. If the initial gear is not desired, use the upshift switch or use the downshift switch to select the gear. Refer to Operation and Maintenance Manual, "Operator Controls - Initial gear" or Operation and Maintenance Manual, "Monitoring System - Messenger Display" for more information about initial gear. Unlike the autoshift, the initial gear is a standard function on all machine configurations.

Note: Gears one through four FORWARD and the gears one through threeREVERSE have been developed for automodulation use.

Note: Avoid automodulating into gear while the machine is under load. Repeated NEUTRAL to gear engagements under load may shorten the transmission clutch life.

Note: When automodulating into gear do not change the engine speed. If the engine speed is increased, the shift may result in a harsh engagement.

The transmission modulator control (inching pedal) may also be used to engage the transmission into gear. Before selecting the direction with the transmission control switch , fully depress the transmission modulator control (inching pedal) . After selecting the gear and after selecting the direction, release the transmission modulator control (inching pedal) slowly for the operator controlled clutch engagement. Refer to Operation and Maintenance Manual, "Operator Controls - Transmission Modulator Control (Inching Pedal)" for additional explanation.

Working Low Idle

Working low idle is a feature that provides an elevated low idle to help protect the drivetrain from high torsional loading caused by low engine speed machine operation. This feature can be enabled in Electronic Technician (ET), by configuring the "Machine Working Low Idle" status. When enabled, the machine will increase the low idle engine speed from 800 RPM to 1000 RPM when the machine is shifted from NEUTRAL to FORWARD or REVERSE. Once the machine is shifted back into NEUTRAL, the engine speed will return to the 800 RPM low idle after 5 seconds. When the transmission is neutralized using the inching pedal while in a gear, the low idle speed will remain at 1000 RPM.

Speed Matching

Speed Matching is a standard feature that limits the gears into which the transmission can be engaged based on the machine speed. This feature will help to protect the driveline components from excessive torques when transitioning from a neutralized state into a gear state. This feature also helps to prevent overspeed of internal transmission components by selecting the proper neutral state based on machine speed. Neutralized states of the transmission include both the cycling of the transmission control switch to the NEUTRAL position as well as neutralization by depressing the inching pedal.

This feature also limits the initial forward gear and initial reverse rear to 4F and 3R respectively.

Note: The autoshift feature functionality and neutralization functionality of the Anti-Stall feature will override the Speed Matching feature.

Limited Inching

Limited inching is a feature that inhibits inching pedal functionality in higher gears to help protect the drivetrain from excessive torque caused by using the inching pedal both in gear or while executing a shift. This feature can be enabled in Electronic Technician (ET), by configuring the "Inching Pedal Neutralizer Enable Status". The limited inching feature allows full inching functionality in gears 1 through 3 FORWARD and REVERSE. In all other gears, inching commands that exceed 90% of the pedal travel for more than 2 seconds will result in neutralization of the transmission. All other inching commands in these gears will not be used by the ECM and the transmission cannot be modulated in these gears. The limited inching strategy works with the speed matching strategy to select the proper neutral state of the transmission based on machine speed and will re-engage the appropriate speed matched gear when the inching pedal is released.

Transmission Over Speed Protection Strategy

Overspeed protection is a feature that utilizes transmission shifts to help protect the engine from running at an overspeed condition. In addition, overspeed protection ensures that the transmission will never be shifted into a gear that would cause an overspeed condition.

The control will upshift the transmission by one gear when the transmission output speed reaches the overspeed up shift point for the current gear. The control does not limit the number of overspeed up shifts. If the transmission output speed continues to increase, the control will upshift, based on overspeed upshift points, until the transmission reaches the top gear.

The control will downshift the transmission by one gear when the actual gear is higher than the selected gear and the transmission output speed decreases below the overspeed downshift point.

Transmission Under Speed Protection Strategy

Underspeed protection automatically downshifts the transmission to the next lower gear when the machine is below 800 rpm and under load. The downshift will allow the engine to operate in a more appropriate speed range. If the engine continues below idle under load the underspeed protection will automatically downshift the transmission to the next lower gear after a one second delay. Once the engine speed has recovered to an acceptable level for at least 5 seconds, the transmission will begin to upshift to the original requested gear. The underspeed protection will not downshift the transmission to the NEUTRAL position. In order to avoid automatic downshifts, you operate the machine at or above 1000 rpm. If a directional shift is performed before the transmission has upshifted to original requested gear, the transmission will automatically upshift after the directional shift.

Anti-Stall Protection Strategy

Anti-stall is a feature that shifts the transmission into the NEUTRAL position to help protect the drivetrain from high torsional loading generated by low engine speed machine operation. This feature is enabled when engine speed drops below 575 rpm. The transmission will automatically shift into NEUTRAL to prevent continuous low engine speed machine operation and possible engine stall. "ENGINE UNDERSPEED: CYCLE FNR" will display on the LCD to indicate that the feature has been enabled. You must cycle the transmission control switch to re-engage the transmission.

Note: If an instantaneous load is encountered at low engine speed, it is still possible to stall the machine. To minimize enabling of this feature, the machine should be operated with engine speeds at or above 1000 rpm.

Sequential Speed Shifting

The Power-Shift function of the transmission allows the operator to adjust the transmission gear while the machine is in motion. The operator can obtain the optimal machine ground speed for the operation being performed by matching the transmission gear for the given engine speed. Use the upshift switch and use the downshift switch to adjust the transmission gear while you use the machine.

You can upshift the transmission at any engine speed, given the engine is capable of handling the load. No matter the number of shifts that are commanded at one time, there is a delay between the shifts to prevent a shift interruption. Anticipate the gear you need for the operation to prevent the transmission from stalling the engine due to the shift delay.

Depending on the gear, downshifting requires the engine to be at some speed less than full throttle before being executed to prevent the engine from overspeeding. The M-Series motor graders use Control Throttle Shifting (CTS) to control downshift gear requests. If the engine is at some speed above the inhibit point, Control Throttle Shifting (CTS) will automatically reduce the engine speed to allow the downshift. Upon shift completion, control of the engine speed will be given back to the operator. Similar to the upshifts, the downshifts are subject to a shift delay to prevent shift interruption.

Speed shifts can be performed in any loading condition, as speed shifts are automatically compensated for engine load. In order to lengthen the transmission clutch life and in order to prevent degradation of shift quality, the clutch modulation is adjusted according to load conditions. The compensated shifts minimize torque interruptions in order to maintain the load transfer during the transmission gear change.

Note: Do not utilize the transmission modulator control (inching pedal) when performing speed shifts. The Power-Shift transmission controls the clutch disengagement and the clutch engagement according to the requested shift.

Shuttle Shifting

Shuttle Shifting, also known as directional shifting, allows the operator to change the machine direction quickly and with minimal disruption to the ground surface being graded. The M-Series transmission precisely controls the engagement of the direction clutch for a smooth transition from one direction to the other. Control Throttle Shifting (CTS) is also utilized during the shuttle shift to maximize the shift. The following shifts are allowed:

Table 2

Shuttle Shift	Engine Speed Conditions for Shift	Operator Input
1F - 1R 1R - 1F	Entire engine speed range	Transmission Control Switch
2F - 2R 2R - 2F	Entire engine speed range	Transmission Control Switch
3F - 3R 3R - 3F	Entire engine speed range	Transmission Control Switch
4F - 3R 4R - 3F	< 1500rpm	Transmission Control Switch

To perform a shuttle shift, simply select the opposite direction from the current selection on the transmission control switch . The direction change must be done in one continuous motion, the transmission control switch should not be in the NEUTRAL position for greater than 0.2 seconds. If a shuttle shift is requested while operating in a gear higher than those described in the table above, the transmission controller will automatically downshift to a gear in the range of a shuttle shift.

Note: To prevent excessive transmission clutch wear, shuttle shifting is not recommended while using the ripper or while using the scarifier or while towing a heavy load. In these instances, either lift the implement sufficiently above the ground surface or bring the machine to a stop by using the transmission modulator control (inching pedal) and the service brake control before performing the shuttle shift.

Programmable Transmission Gear Settings

Initial Gear

One gear is available for each direction. The initial gear can be equal to or less than the maximum gear. The initial gear can be changed through Electronic Technician (ET) or Messenger when the machine is in NEUTRAL and Transmission Output Speed (TOS) is 0 rpm. Changes made by ET or Messenger are the new defaults at the time of the changes or after a power cycle. FORWARD and REVERSE do not need to be the same gear. If the initial gear is greater than the minimum autoshift gear the initial gear will be ignored when the autoshift is on. Refer to Operation and Maintenance Manual, "Operator Controls - Autoshift Switch" for additional information. Refer to Operation and Maintenance Manual, "Monitoring System - Messenger Display" for additional information.

Maximum Gear

One gear is available for each direction. The maximum gear can be changed through Electronic Technician (ET) when the machine is in NEUTRAL and Transmission Output Speed (TOS) is 0 rpm. Changes made by ET are the new defaults at the time of the changes or after a power cycle. FORWARD and REVERSE do not need to be the same gear. The range the maximum gear can be set to in the FORWARD position is between three and eight. The range the maximum gear can be set to in the REVERSE position is between three and six. Refer to Operation and Maintenance Manual, "Operator Controls - Autoshift Switch" for additional information. Refer to Operation and Maintenance Manual, "Monitoring System - Messenger Display" for additional information.

Wrist Rest Height Adjustment Knob (48)

Pull the knob in order to adjust the height of the wrist rest. Release the wrist rest height adjustment knob in order to lock the wrist rest in position.

Control Pod Fore/Aft Adjustment Lever (49)

Pull up on the fore/aft lever in order to move the control pod forward or backward. Release the fore/aft lever in order to lock the control pod in position.

Arm Pad Adjustment Knob (50)

Turn the knob counterclockwise in order to adjust the arm pad. Turn the knob clockwise in order to lock the arm pad in position.

Control Pod Vertical Adjustment Knob (51)

Turn the knob counterclockwise in order to adjust the height of the control pod. Turn the knob clockwise in order to lock the control pod in position.

Note: Your machine may be equipped with a switch that will adjust the height of the control pod. If equipped, the switch will be located towards the rear of the control pod on both the left and right side.

Control Pod Raise - Press the top of switch in order to raise the height of the control pod

Control Pod Lower - Press the bottom of switch in order to lower the height of the control pod.

Secondary Steering Test Switch (52)

Secondary Steering Test Switch - Switch allows the operator to manually test the operation of the secondary steering system. Refer to Operation and Maintenance Manual, "Secondary Steering - Test" for the proper procedure.

Parking Brake Switch (53)

Show/hide table

Personal injury could result from the sudden stop of the machine. The parking brake is released using the powertrain oil. A loss of powertrain oil pressure (transmission pressure) will result in automatic engagement of the parking brake. Correct the reason for the loss of oil pressure. The use of the parking brake to slow or stop the machine during regular operation will cause severe damage to the parking brake.

Show/hide table

NOTICE
Do not engage the parking brake while the machine is moving unless the service brakes fail. The use of the parking brake as a service brake in regular operation will damage the parking brake. The use of the parking brake as a service brake could also result in possible damage to the transmission.

Show/hide table

NOTICE
Moving the machine with the parking brake engaged will wear or damage the brake and/or transmission. If necessary, have the brake repaired before you operate the machine.

Note: Engage switch after the machine has stopped.

ENGAGE - Push in the top of the switch in order to engage the parking brake. The parking brake indicator will illuminate. Refer to Operation and Maintenance Manual, "Monitoring System" for further information.

DISENGAGE - Push in the bottom of the switch in order to disengage the parking brake. The parking brake indicator will go out. Refer to Operation and Maintenance Manual, "Monitoring System" for further information.

Engine Start Switch (54)

When you turn switch to the ON position, electrical power is supplied to the systems in the operator compartment.

OFF - When you insert the engine start switch key and when you remove the engine start switch key, the engine start switch must be in the OFF position. Also, turn the engine start switch to the OFF position in order to stop the engine.

ON - To activate the electrical circuits in the cab, insert the engine start switch key and turn the engine start switch clockwise to the ON position.

START - To start the engine, insert the engine start switch key and turn the engine start switch clockwise to the START position. When the engine start switch key is released, the engine start switch will return to the ON position.

Note: If the engine fails to start, return the engine start switch to the OFF position. This must be done before you attempt to start the engine again.

Machine Security System (If Equipped)

Show/hide table

NOTICE
If equipped with a AVSpare Machine Security System (MSS), this machine may not start under certain conditions. Read the following information and know your machine's settings. Your AVSpare dealer can identify your machine settings.

Machine Security System (MSS) - Machines that are equipped with MSS can be identified by a decal that is located in the operator station. The MSS is designed to be a theft deterrent and/or the MSS will prevent the unauthorized operation of the machine.

Basic Operation

The MSS may be programmed to use a standard Cat key or an electronic key. The electronic key contains an electronic chip within the plastic housing for the key. Each key emits a unique signal to the MSS. The keys can be identified by a gray housing or a yellow housing. The MSS may have programmed settings that require an electronic key for starting during certain periods of time. The MSS may also have programmed settings that allow a standard Cat key to start the machine during certain periods of time.

Note: Ensure that you have only one electronic key near the exciter coil when you are attempting to start the machine. If there is more than one electronic key near the exciter coil, the MSS may not be able to read the key in engine start switch and the machine will not start.

When engine start switch is turned to the ON position, the ECM will read the unique ID that is stored in the electronic key. The ECM will then compare this ID to the list of authorized keys. The following table tells the operator the status for starting the machine. The status light is located near engine start switch .

Table 3

Green light	The key is authorized.
Red light	The key is not authorized.

Note: The MSS will not shut down the machine after the machine has started.

Security Management

The MSS has the capability to allow you to program the system to automatically activate at different time periods with different keys. The MSS can also be programmed to reject a specific electronic key after a selected date and time. When you turn the key to the OFF position and the MSS is active, you have a 30 second interval in order to restart the machine if you do not have an electronic key or if you do not have a valid key. Also if the machine stalls, there is a 30 second interval for restarting the machine if you do not have an electronic key or if you do not have a valid key. This 30 second interval is counted from the time of turning the key to the OFF position.

Note: Valid keys are able to start the machine at any time.

Note: Know your machines settings because the use of an electronic key is no guarantee that the machine can be restarted.

An expiration date can be set for each electronic key that is contained in the list of keys for the machine. The key will no longer start the machine when the internal clock in the security system passes the expiration date. Each entry in the list of keys can have a different expiration date.

Spare keys are available from your dealer. Before a key can operate the machine, the MSS must be set to accept that particular key. Consult your Cat dealer for information on additional features of the MSS.

Regulatory Compliance Section

Illustration 21	g01438398

Consult your Cat dealer with any questions that concern the operation of the MSS in a specific country.

Illustration 22	g01438501

Accelerator Control (55)

Depress pedal in order to increase the engine speed. Release the pedal in order to decrease the engine speed. The engine will return to the setting of the throttle control when you release the pedal.

Service Brake Control (56)

Depress pedal in order to apply the service brakes. Use the service brake control for the following conditions:

• Reduce ground speed.

• Stop the machine - Just before the machine comes to a stop, you must also apply the transmission modulator control (inching pedal) or place the transmission control switch in the NEUTRAL position to prevent stalling of the engine.

To disengage the service brakes, release the pedal.

Note: Under certain conditions, the transmission will neutralize and prevent engine stall when the service brakes are fully engaged and the inching pedal is not depressed. The tandem tires will stop rotating. The LCD display will display NEUTRAL as the actual gear, the operator requested gear will change to allow speed matched transmission re-engagement when the service brake is disengaged and the ground speed is greater than 6.5 km/h (4 mph). At ground speeds below 6.5 km/h (4 mph) the machine will remain in the NEUTRAL position until the transmission control switch is cycled to the NEUTRAL position and back to the operator requested gear.

Transmission Modulator Control (Inching Pedal) (57)

The transmission modulator control (inching pedal) disengages the power to the wheels.

Depress inching pedal in order to decrease the power to the wheels. A sensor will monitor the position of the pedal. As the pedal is depressed, the hydraulic pressure to the direction clutches will vary. When the pedal is depressed completely, the power to the rear wheels will be disengaged.

The transmission modulator control (inching pedal) was designed and developed in order to be used in all loading conditions. The intent of the control was to provide the operator with the ability to vary the machine speed independent of engine speed for short durations. This becomes useful when the operator demands high controllability and maneuverability of the machine. Inching allows the operator to vary the machine ground speed while keeping engine speed high for quick implement response. Gears one through five FORWARD and the gears one through four REVERSE have been developed for modulator control (inching pedal) use.

If the inching function is used in high loading situations, the operator should pick the optimal gear to match the load condition. If the operator constantly experiences machine stall (no forward or reverse movement) while inching, the operator should downshift to the next available gear.

Note: To ensure maximum transmission clutch life, avoid prolonged use of the transmission modulator control (inching pedal) when moving heavy loads. Rather, try to select a gear that will provide the same machine ground speed that the transmission modulator control (inching pedal) allowed previously.

The transmission modulator control (inching pedal) can also be used to launch the machine into gear.

Note: Although direction changes can be performed with the transmission modulator control (inching pedal), the preferred method is to utilize Shuttle Shifting for machine direction changes. Shuttle Shifting ensures longer transmission clutch life and repeatable shift quality.

Note: Use of the transmission modulator control (inching pedal) is not to be used for shifting gears while the machine is moving. The use of the inching pedal during shifts may shorten the transmission clutch life and accelerate damage to the drive train.

Warning Beacon Switch (58)

Warning Beacon Switch (If Equipped) - Push in the top of switch in order to turn on the warning beacon lamp. Push in the bottom of the switch in order to turn off the warning beacon lamp.

Heated Mirror Switch (59)

Heated Mirror Switch (If Equipped) - Push in the top of switch in order to apply heat to the exterior mirrors. The heated mirrors will be operational when engine start switch is in the ON position. An indicator light on the switch will become active showing that the mirrors are being heated. The indicator light will deactivate after a set time in order to show that the mirrors are not being heated.

Defroster Fan Switch (60)

Defroster Fan - Push in the top of switch in order to operate the defroster fan at high speed. Push in the bottom of the switch in order to operate the defroster fan at low speed. Move the switch to the MIDDLE position in order to turn off the defroster fan.

Centershift Lock Switch (61)

Centershift Lock Switch - Push the bottom of switch in order to engage the centershift lock. Push the top of the switch in order to disengage the centershift lock.

Show/hide table

Personal injury could result from the sudden movement of the blade when the centershift lockpin is released. Before releasing the centershift lockpin be sure that all personnel are clear of the blade area, the circle and blade are centered under the machine and the blade has been lowered to the ground.

1. Use centershift control (left) and centershift control (right) in order to shift the drawbar. Move the drawbar in the desired direction and the desired position. Place the left side of the blade and the right side of the blade in FLOAT position in order to ground the moldboard.

2. Move switch to the DISENGAGED position. When the switch is in the DISENGAGED position, an indicator light will illuminate on the front dash.

3. If you want to move the link bar to the first hole on either side of center or to the second hole on either side of center, proceed to Step 3.a. If you want to move the link bar to the third hole on either side of center or to the farthest hole on either side of center, proceed to Step 3.c.

   1. Make sure that the left side of the blade and the right side of the blade are still in the FLOAT position. Move either centershift control (left) or centershift control (right) in the opposite direction that was used to position the drawbar in Step 1. As the centershift cylinder moves, the linkage will roll freely. Also, the link bar will move sideways.

   2. Continue with Step 4.

   3. Move the left side of the blade and the right side of the blade out of FLOAT position.

   4. Simultaneously, move centershift control (left) and lower the right side of the blade by moving the right-hand joystick forward. At the same time, raise the left side of the blade by moving the left-hand joystick backward.

4. Line up the centershift lock pin with the desired hole in the link bar. Use the indicator that is on the right lift arm to check the alignment.

5. Move switch to the ENGAGED position. The indicator light for the centershift lock will turn off when the centershift lock pin is engaged.

   Note: If the indicator light for the centershift lock does not turn off, slightly move the link bar for the centershift in order to align the hole with the centershift lock pin.

6. Sideshift the link bar toward the desired direction. Use the blade lift cylinders in order to adjust the blade angle.

Heated Glass Switch (If Equipped) (62)

Heated Glass Switch (If Equipped) - Push in the top of switch in order to apply heat to the glass. The heated glass will be operational when engine start switch is in the ON position. An indicator light on the switch will become active showing that the glass is being heated. The indicator light will deactivate after a set time in order to show that the glass is not being heated.

Variable Blade Float

Left Variable Blade Float (63) - Adjust control anywhere between MINIMUM position (left) and MAXIMUM position (right). This will enable the operator to control the amount of lift force or float force that is applied to the working surface by the left side of the blade.

Variable Blade Float Switch (64) - Push in the top of switch in order to enable the variable blade float. Push in the top of switch again in order to disable the variable blade float.

Right Variable Blade Float (65) - Adjust control anywhere between MINIMUM position (left) and MAXIMUM position (right). This will enable the operator to control the amount of lift force or float force that is applied to the working surface by the right side of the blade.

While the blade is in the FLOAT position, the variable blade float will provide the ability to control the pressure of the hydraulic fluid for the blade lift cylinders. The pressure is controlled by left variable blade float control and right variable blade float control . The controlled pressure for the blade lift cylinders positively affects the weight of the following components: drawbar, circle and moldboard.

Note: The variable blade float will not apply a downward pressure above the weight that is provided by the following components: drawbar, circle and moldboard.

Compression Brake Switch (66)

Compression Brake - Push in the top of switch in order to put the compression brake in AUTOMATIC mode. Push in the bottom of switch in order to put the compression brake in OFF mode.

Note: It is recommended to operate the machine with the compression brake switch in the ON position.

The compression brake may be activated between gears four and eight FORWARD and between second and sixth REVERSE.

When switch is in the AUTOMATIC mode the compression brake will activate when the actual Engine Output Speed (EOS) is 200 rpm above the requested EOS.

Note: If the machine has reached 200 rpm above the requested EOS the requested the compression brake system will automatically activate between gears four and eight FORWARD to prevent engine overspeed. If the machine is between gears 1 and 3 FORWARD the transmission overspeed protection will activate and automatically shift the transmission to the next higher gear if the service brakes are not used. It is not recommended to allow the machine to reach the overspeed limits. The service brakes should be applied or a manual shift should be used to place the machine in gear four FORWARD or above depending on the grade. The compression brake may activate in second to sixth gear REVERSE. If the machine reaches overspeed in first gear REVERSE the transmission overspeed protection will activate and automatically shift the transmission to the next higher gear if the service brakes are not used. It is not recommended to allow the machine to reach the overspeed limits. The service brakes should be applied or a manual shift should be used to place the machine in the next higher gear.

The compression brake is a three phase system. The compression brake system will activate two cylinders to attempt to return the EOS to 50 rpm above the requested EOS. If the system is able to reach this request the system will be disabled. The system will be enabled if the EOS is 200 rpm above the requested EOS. If the compression brake is unable to maintain an rpm lower than 200 rpm over the requested EOS the compression brake system will activate an additional two cylinders until the maximum number of cylinders are active for the given gear.

Note: In fourth gear FORWARD up to four cylinders will be activate. In gears five through eight FORWARD up to six cylinders will be active. In second gear REVERSE up to two cylinders will be activate. In third gear REVERSE up to four cylinders will be activate. In gears three through six REVERSE up to six cylinders will be active.

When the autoshift switch is in the ON position and when the compression brake switch is in the AUTOMATIC mode the transmission will upshift before the compression brake activates until the maximum autoshift gear limit is reached.

When the autoshift switch is in the OFF position and when the compression brake switch is in the OFF position the compression will not operate until the maximum autoshift gear limit has been reached. The autoshift gear must be set to fourth gear FORWARD or higher for the compression brake to activate. If the autoshift is set to fourth gear FORWARD or higher the compression brake will activate when the EOS reaches 200 rpm above the requested EOS. If the autoshift gear is set to third gear FORWARD or the autoshift gear is set to second gear FORWARD the transmission will upshift to fourth gear FORWARD and the compression brake will activate.

When you operate the machine with the transmission control switch in any gear higher than third gear FORWARD or first gear REVERSE and the compression brake switch is in the OFF position and the EOS is 200 rpm above high idle EOS the compression brake will activate.

Note: The service brake does not affect the compression brake. The compression brake is recommended for long-term retarding.

The compression will deactivate if you depress the inching pedal and the compression brake will deactivate during a shift. If the throttle hold mode switch is in the MANUAL mode and you depress the inching pedal the compression brake will deactivate because the EOS will equal the throttle hold setting.

Headlight Dimmer Switch (67)

Headlight Dimmer Switch - Push in the top of switch in order to change the headlight beams to the high beam. Push in the bottom of the switch in order to change the headlight beams to the low beam.

Blade Cushion Switch (68)

Blade Cushion Switch (If Equipped) - Push in the top of switch in order to turn on the blade cushion. Push in the bottom of the switch in order to turn off the blade cushion.

Implement Lockout Switch (69)

Note: Before the implement controls will function, switch must be in the UNLOCK position. Steering is not affected by the position of switch.

LOCK - Push the top of the switch in order to lock out the implement controls.

UNLOCK - Push in the bottom of the switch in order to unlock the implement controls.

Access Platform Light Switch (If Equipped) (70)

Illustration 23	g03299816

Access Platform Light Switch - Push in the top of switch in order to turn on the access platform lights. Push in the bottom of the switch in order to turn off the access platform lights. There is an additional platform access light switch. the switch is located on the outside of the machine near the access platform ladder on the left side of the machine.

Cigar Lighter (24 V) (71)

Lighter - Push the lighter inward and release the lighter. When the lighter is ready to use, the lighter will move outward. The lighter can also be used as a 24 v power receptacle.

Power Port (12 V) (72)

Power Port 12 V - The power port can be used to power 12 v automotive electrical equipment or accessories. Remove the cap before use.

Throttle Hold Mode Switch (73)

Throttle hold mode switch allows the operator to set the mode for the throttle hold function. The following modes can be selected: AUTOMATIC, OFF and MANUAL.

AUTOMATIC - Push in the top of switch in order to put the throttle control in AUTOMATIC mode. When the throttle control is in AUTOMATIC mode, the function of the throttle will be like a cruise control. Use accelerator control in order to achieve the desired engine speed. Push in the top of throttle set/accel switch in order to set the throttle at the current engine speed. Use throttle set/accel switch and/or throttle resume/decel switch in order to change the throttle setting.

The throttle setting of AUTOMATIC mode will be suspended and the engine speed will adjust to the setting of accelerator control if either of the following conditions occur:

• Accelerator control is moved more than 25 percent.

• The service brakes are applied.

Push in the throttle resume/decel switch in order to resume the preset engine speed.

The resume feature will be disabled if any of the following conditions occur:

• Switch is moved to the OFF mode.

• Switch is moved to the MANUAL mode.

• Engine start switch is moved to the OFF position.

• The engine is stalled.

Note: The indicator light for the throttle lock will be illuminated when the throttle setting is locked during AUTOMATIC mode.

MANUAL - Push in the bottom of switch in order to put the throttle control in MANUAL mode. Use accelerator control in order to achieve the desired engine speed. Push in the top of throttle set/accel switch in order to set the throttle at the current engine speed. Use throttle set/accel switch and/or throttle resume/decel switch in order to change the throttle setting.

The engine speed will increase if accelerator control is pressed past the throttle setting. When the accelerator control is released, the engine will return to the preset engine speed. The following conditions will not cause the throttle lock to disengage:

• The service brakes are applied.

• The accelerator control is moved.

The throttle lock will be disengaged if either of the following conditions occur:

• Switch is moved to the OFF mode.

• Engine start switch is moved to the OFF position.

The resume feature will not be available after the throttle lock is disengaged.

Note: The indicator light for the throttle lock will be illuminated when the throttle is locked during MANUAL mode.

OFF - Move switch to the MIDDLE position in order to put the throttle control in OFF mode. When switch is in the MIDDLE position, AUTOMATIC mode and MANUAL mode will not work. The throttle will only be operated by accelerator control .

Throttle Set/Accel Switch (74)

Throttle set/accel switch allows the operator to set the speed of the throttle. As required, move the switch in order to change the engine speed.

SET/ACCEL - When throttle hold mode switch is not in OFF mode, push the top of switch in order to set the engine speed. Push the top of switch again in order to increase the engine speed by 100 rpm. Push the top of switch and hold down the switch in order to increase the engine speed by 700 rpm/sec.

Note: For resuming speeds and decelerating speeds, refer to "Throttle Resume/Decel Switch (45)" for further information.

Hazard Flasher Switch (75)

Hazard Lights - Push in the top of switch in order to activate the hazard lights. Push in the bottom of the switch in order to turn off the hazard lights.

Autoshift Switch (76)

Autoshift Switch (If Equipped) - Move switch to the TOP position in order to turn on the autoshift transmission. Move the switch to the BOTTOM position in order to turn off the autoshift transmission. When the switch is in the ON position, the transmission will automatically shift within the maximum and minimum autoshift gears.

Note: In the event of the failure of a transmission solenoid, the machine is equipped with a limp home mode. The following procedure should be used in such a situation:

If any of the clutch solenoids fails to operate properly, the limp home mode will activate. If the current gear is affected by the clutch solenoid failure the transmission will automatically switch into the NEUTRAL position. If the current gear is not affected by the clutch solenoid failure the transmission will remain in the current gear. In order to test the gears that can be used select the gear and shift the transmission into the gear. If the transmission automatically shifts into the NEUTRAL position the selected gear is not available. You can utilize the upshift switch and you can utilize the downshift switch for the gears that have not been affected by the clutch solenoid failure, provided the gears are sequential.

Autoshift Operation

Minimum Autoshift Gear Limit

There is a minimum autoshift gear for each direction. The minimum autoshift gear can be equal to or less than the maximum autoshift gear, and equal to or less than the maximum gear. The minimum autoshift gear can be changed through Electronic Technician (ET) or Messenger when the machine is in NEUTRAL and Transmission Output Speed (TOS) is 0 rpm. Changes made by ET or Messenger are the new defaults at the time of the changes or after a power cycle. FORWARD and REVERSE do not need to be the same gear. The range the minimum autoshift gears can be set to in the FORWARD position is between one and five. The range the minimum autoshift gears can be set to in the REVERSE position is between one and four.

Maximum Autoshift Gear Limit

There is a maximum autoshift gear for each direction. The maximum autoshift gear can be equal to or less than the maximum gear. When the operating gear is within the autoshift range, the gear requested by the operator is the maximum autoshift gear. The maximum autoshift gear can be changed through ET or Messenger when the machine is in NEUTRAL and Transmission Output Speed (TOS) is 0 rpm. Changes made by ET or Messenger are the new defaults at the time of the changes or after a power cycle. FORWARD and REVERSE do not need to be the same gear. The range the maximum autoshift gears can be set to in the FORWARD position is between three and eight. The range the maximum autoshift gears can be set to in the REVERSE position is between three and six.

Note: The maximum autoshift gears for FORWARD and REVERSE can be changed using upshift switch and downshift switch . This requires the autoshift transmission to be turned on and the current gear to be equal to or within the range for the maximum and minimum autoshift gears. The maximum autoshift gear changes made with the upshift switch and the downshift switch will not become the new defaults.

ON Position

Note: The lowest gear of the range can be configured to be any gear from first gear through fifth gear for FORWARD and from first gear through fourth gear for REVERSE. The default lowest gear is third gear.

When autoshift switch is in the ON position and upshift switch is any gear that is greater than the minimum autoshift gear, the machine will upshift automatically to the gear that has been selected by the operator. Also, the transmission will downshift automatically when the autoshift switch is in the ON position and downshift switch is any gear that is less than the maximum autoshift gear.

1. Move autoshift switch to the ON position. The autoshift alert indicator will turn on.

2. Move upshift switch to the desired high end gear. This gear must be greater than the minimum autoshift gear. The transmission will upshift automatically. The upshift is based upon TOS.

3. Move downshift switch to the desired low end gear. This gear must be less than the maximum autoshift gear. The transmission will downshift automatically. The downshift is based upon TOS.

The autoshift alert indicator will flash when either of the following conditions exist:

• The machine is operating in a gear that is less than the minimum autoshift gear.

• Transmission control switch is in NEUTRAL.

OFF Position

The machine is controlled manually by the operator with autoshift switch in the OFF position. When the autoshift switch is in the OFF position, the transmission shifts when upshift switch or downshift switch is selected manually. The autoshift alert indicator is off.

Override Function

The autoshift function will be overridden when downshift switch is moved below the minimum autoshift gear. The autoshift alert indicator will flash and the maximum autoshift gear is not changed.

The transmission will stay in the specified gear. The autoshift function can be enabled again by moving upshift switch to the minimum autoshift gear. The autoshift alert indicator will turn on and the transmission will engage the autoshift function.

Snow Wing Light Switch (77)

Note: When the snow wing lights are turned on, the taillights will automatically turn on.

Snow Wing Lights (If Equipped) - Push in the top of switch in order to turn on the snow wing lights. Push in the bottom of the switch in order to turn off the snow wing lights.

Auto Differential Lock Switch (78)

This is a two-position switch. The switch allows the operator to set the mode for the differential lock control. The following modes can be selected: AUTOMATIC and MANUAL.

AUTOMATIC - Push in the top of switch in order to put the differential lock control in AUTOMATIC mode. The switch will illuminate. When the differential lock control is in AUTOMATIC mode the differential will automatically lock and/or unlock based upon machine conditions. When the differential is locked, an indicator light will illuminate on the front dash.

Auto differential lock manual override allows the operator to manually apply the differential lock while in AUTOMATIC mode. Press the differential lock control to initiate the override. Once you have overridden AUTOMATIC mode, the differential lock will remain on until the following conditions exist:

• overall steering angle exceeds a predefined value

• Auto differential lock button is turned OFF

• transmission is shifted into a gear that does not allow auto differential lock

• faults on steering angle, actual gear, or articulation angle

Note: Pressing the differential lock control after the manual override is initiated will not turn OFF the differential lock. Manual override functions in gears 1F-4F and 1R-2R.

MANUAL - Push in the bottom of switch in order to put the differential lock control in MANUAL mode. Push control button on the right-hand joystick in order to lock the differential. When the differential is locked, an indicator light will illuminate on the front dash. Push control button again in order to unlock the differential. Refer to Operation and Maintenance Manual, "Operator Controls - Differential Lock Control" for more information.

When the differential lock control is in the AUTOMATIC mode the ECM will lock and/or unlock the differential based on certain machine conditions which include machine load and steer/articulation angle. The indicator for the differential lock will illuminate when the differential is locked. The feature will be disengaged when the machine is in the AUTOMATIC mode. and the gear setting is greater than 5F or 3R.

Cab Floodlight Switch (79)

Note: When the cab floodlights are turned on, the taillights will automatically turn on.

Cab Floodlights (If Equipped) - Push in the top of switch in order to turn on the cab floodlights. Push in the bottom of the switch in order to turn off the cab floodlights.

Front and Rear Work Light Switch (80)

Front and Rear Work Lights - Push in the top of switch in order to turn on the front and rear work lights. Move the switch to the MIDDLE position in order to turn off the front and rear work lights. Push in the bottom of the switch in order to turn on the front work lights only.

Headlight and Taillight Switch (81)

Headlights and Taillights - Push in the top of switch in order to turn on the headlights and taillights. Move the switch to the MIDDLE position in order to turn off the headlights and taillights. Push in the bottom of the switch in order to turn on the taillights only.

Bluetooth Microphone (82)

Bluetooth Microphone - If the machine is equipped with a radio that has Bluetooth available, it is possible to sync another Bluetooth device with the radio. Reference the radio manual for instructions on detecting and setting up the Bluetooth device.

Heating and Air Conditioning Controls

Fan Speed Switch (83)

Fan speed switch controls the four-speed blower fan motor.

OFF - Move the switch to this position in order to turn off the blower fan.

LOW - Move the switch to this position for a low fan speed.

MEDIUM - Move the switch to this position for a medium fan speed.

HIGH - Move the switch to this position for a high fan speed.

MAX - Move the switch to this position for the maximum fan speed.

Temperature Variable Control (84)

Temperature Variable Control - Adjust control anywhere between MINIMUM position (left) and MAXIMUM position (right). This will control the amount of cooling and the amount of heating.

Air Conditioner Switch (85)

Air Conditioner Switch - Push in the top of switch in order to operate the air conditioning system. Push in the bottom of the switch in order to turn off the air conditioning system.

Heating and Air Conditioning System Operation

The heating and air conditioning system can perform four functions:

Heating

Position fan speed switch to the desired speed. Adjust temperature variable control to the desired temperature.

Air Conditioning

Air Conditioning - Place air conditioner switch in the ON position. Position fan speed switch to the desired speed. Adjust temperature variable control to the desired temperature.

Pressurizing

When heating or cooling is not desired, pressurize the cab in order to prevent dust from entering.

Adjust temperature variable control to a comfortable temperature. Position fan speed switch to a speed that is needed to keep out the dust.

Defogging

Defogging - Place air conditioner switch in the ON position. Position fan speed switch to a speed that is needed to remove moisture from the air in the cab. This prevents moisture from forming on the window and the windows. Adjust temperature variable control until the moisture level is lowered.

Wiper/Washer Controls

Rear Window Wiper/Washer - Turn knob (86) clockwise in order to activate the window wiper. Turn the knob counterclockwise in order to turn off the window wiper. Depress the knob in order to activate the window washer. Spring force will return the knob when the knob is released.

Left Door Wiper/Washer - Turn knob (87) clockwise in order to activate the window wiper. Turn the knob counterclockwise in order to turn off the window wiper. Depress the knob in order to activate the window washer. Spring force will return the knob when the knob is released.

Front Window Wiper/Washer - Turn knob (88) clockwise in order to turn on the window wiper. Turn the knob counterclockwise in order to turn off the window wiper. Depress the knob in order to activate the window washer. Spring force will return the knob when the knob is released.

Right Door Wiper/Washer - Turn knob (89) clockwise in order to activate the window wiper. Turn the knob counterclockwise in order to turn off the window wiper. Depress the knob in order to activate the window washer. Spring force will return the knob when the knob is released.

Side Window Wiper/Washer Switch (If Equipped) - Push the bottom of the switch (90) in order to turn off the window wiper. Place the switch in the middle position in order to activate the window wiper. Push the top of the switch and hold the switch in order to activate the window washer and the window wiper. There is one switch on the right window and one switch on the left window.

Cab Vent Windows (If Equipped)

Illustration 24	g03375186

The cab vent windows is/are located in the rear of the cab on the left and right side (if equipped). Pull up and push out on the vent window handle to open the vent window. To close the vent window, pull in and push down on the handle.

When operating the machine in −4° C (25° F) or colder temperatures, open the vent windows to help reduce window fogging.

Note: To maintain a pressurized cab the vent windows must be closed.

Interior Dome Light

Interior Dome Light - Push the top of the switch in order to turn on the interior dome light. Push the bottom of the switch in order to turn off the interior dome light.

Cab Door

Illustration 25	g02992938

If your machine is equipped with the optional access platform, open the cab door with the foot pedal.

Engine Idle Shutdown

This function shuts down the engine after the operator is not operating the machine for a period of time. This function does not shut down other systems, such as the AC, which can run down the battery after idle shutdown. This function comes disabled from the factory but can be enabled or disabled by a Cat dealer technician. Engine Idle Shutdown may be required for local regulations.

The Engine Idle Shutdown (EIS) shuts down the engine if the following conditions are met:

• Engage the parking brake.

• The engine rpm is at low idle.

• Accelerator control is released.

• Regeneration is inactive.

• Engine coolant at operating temperature.

• The machine is not in all wheel drive creep position.

• The service brake control is released.

• Transmission is in NEUTRAL position.

• The implements are not active.

• Ground speed is 0 km/h (0 mph).

Note: If any service tests or calibrations are running the machine will not enter into engine idle shutdown.

Engine Idle Shutdown - The action lamp will illuminate and Messenger will display a message.

An operator can activate any of the controls listed above in order to cancel the shutdown. The recommended option for the operator is to use the service brake in order to cancel a shutdown.