R1600G Load Haul Dump Machine Electrical System Actual Gear Indicator Caterpillar


Actual Gear Indicator
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Illustration 1g01413729

Actual gear indicator circuit

The components of the actual gear indicator circuit are the Power Train Electronic Transmission Control (Power Train ECM), the AVSpare Monitoring System ECM, the speedometer/tachometer module, the autoshift control switch (STIC steering), the transmission control (STIC steering), and the transmission solenoids.




Illustration 2g01021125

Cab

(1) Power Train ECM




Illustration 3g01021127

Dash panel

(2) AVSpare Monitoring System ECM (behind display)

With the key start switch in the ON position, 24 volt power is supplied from the batteries via circuit breaker #9 to the Power Train ECM and via circuit breaker #1 to the AVSpare Monitoring System ECM.




Illustration 4g01021128

Dash panel

(3) Speedometer/tachometer module

(4) Actual gear indicator




Illustration 5g01021129

Dash Panel

(5) Autoshift control switch (STIC steering)

(6) MANUAL position

(7) AUTOMATIC position




Illustration 6g01021130

Cab

(8) Upshift switch

(9) Downshift switch

(10) Transmission control (STIC steering)

(11) Transmission direction control switch

When autoshift control switch (STIC steering) (5) is in the MANUAL position, Power Train ECM (1) receives a signal from transmission direction control switch (11) for the direction that is currently selected. Upshift switch (8) and downshift switch (9) determine the gears that are currently selected. The signal is sent to AVSpare Monitoring System ECM (2) via the AVS Data Link to speedometer/tachometer module (3). The speedometer/tachometer module will display the actual gear in the display window. Actual gear indicator (4) displays the gear that is currently selected by the Power Train ECM. The Power Train ECM will energize transmission solenoids as required.

When the autoshift control switch (STIC steering) is in AUTOMATIC position (7), the Power Train ECM receives a signal from the transmission direction control switch for the direction that is currently selected. The Power Train ECM will change gears within the transmission automatically. The gear that is currently selected in the AUTOMATIC position, will be displayed on the actual gear indicator.

ReferenceFor more information on the actual gear indicator system refer to Systems Operation, Testing and Adjusting, "AVSpare Monitoring System" for the machine that is being serviced.

Information System:

R1600G Load Haul Dump Machine Electrical System Engine Stop
R1600G Load Haul Dump Machine Electrical System Engine Start
R1600G Load Haul Dump Machine Electrical System Engine Start (Remote Control)
R1600G Load Haul Dump Machine Electrical System Autoshift Control (STIC Steering)
R1600G Load Haul Dump Machine Electrical System Heating and Air Conditioning
R1600G Load Haul Dump Machine Electrical System Main Power Relay
CB34, CB34XW and CC34 Utility Compactors Belts - Inspect/Adjust/Replace
R1600G Load Haul Dump Machine Systems Ejector Bucket - Disassemble
CP56, CS56, CP64, CS64, CP74 and CS74 Vibratory Compactors Propel System Relief Valve (Main, Axle Propel Pump) - Test and Adjust
140M and 150 Motor Grader Steering Control Valve - Remove
140M and 150 Motor Grader Blade Lift Arm - Install
140M and 150 Motor Grader Blade Lift Arm - Remove
CP56, CS56, CP64, CS64, CP74 and CS74 Vibratory Compactors Propel System Pressure Override Valve (Drum Propel Pump) - Test and Adjust
140M and 150 Motor Graders Engine Supplement Radiator Guard and Support, Aftercooler, Hydraulic Oil Cooler, and Radiator, - Install
140M and 150 Motor Grader Steering Control Valve - Install
CP56, CS56, CP64, CS64, CP74 and CS74 Vibratory Compactors Propel System Pressure Override Valve (Axle Propel Pump) - Test and Adjust
CP56, CS56, CP64, CS64, CP74 and CS74 Vibratory Compactors Propel System Piston Pump Neutral (Drum Propel Pump) - Adjust
140M and 150 Motor Grader Control Manifold (Steering Backup) - Remove
140M and 150 Motor Grader Control Manifold (Steering Backup) - Install
CB22, CB24, CB32 and CC24 Utility Compactors Safety Messages
CB22, CB24, CB32 and CC24 Utility Compactors Sound Information and Vibration Information
CB22, CB24, CB32 and CC24 Utility Compactors Specifications
CB22, CB24, CB32 and CC24 Utility Compactors Plate Locations and Film Locations
Air Conditioning and Heating R134a for All Caterpillar Machines Refrigerant Compressor