To prevent personal injury when checks are made while the machine is in operation, make sure only approved personnel are on the machine. Keep other personnel off the machine and in view of the operator. Make sure checks are done in an open area. |
The operation checks can be used to find leakage in the hydraulic system. Also, the operation checks can be used to find failed valves or a failed hydraulic pump.
Make sure that the machine is resting on a smooth, level surface. The machine should be moved away from other operating machines and away from personnel.
- Start the engine. Move the hydraulic lockout control to the UNLOCKED position.
Illustration 1 | g00827520 |
Hydraulic lockout control on early machines |
Illustration 2 | g01162811 |
Hydraulic lockout control on later machines |
- Increase the hydraulic oil temperature to 55 ± 5°C (130 ± 10°F).
- Extend the implement cylinders and retract the implement cylinders several times. Allow the implement cylinders to travel full stroke in each direction.
- Watch the cylinder as the cylinder is extended and retracted. The movement of the cylinder must be smooth and regular.
- Move the implements to the HOLD position.
- Observe the display monitor for any fault codes. If a fault code exists, fix the fault before you troubleshoot the hydraulic system.
- Shut off the engine.
Pressure Specifications
Implement Control Valve
218-8379 Bank Valve (Seven)     | |||||||
Function     | Boom     | Tilt     | Stick     | Swing     | Grapple arms     | Accumulator arms     | Tool     |
Line Relief Setting     | 35700 ± 500 kPa (5180 ± 75 psi) 357 ± 5 bar     |
27600 ± 500 kPa (4000 ± 75 psi) 276 ± 5 bar     |
35700 ± 500 kPa (5180 ± 75 psi) 357 ± 5 bar     |
28800 ± 500 kPa (4180 ± 75 psi) (1) 288 ± 5 bar     |
23300 ± 500 kPa (3380 ± 75 psi) 233 ± 5 bar     |
23300 ± 500 kPa (3380 ± 75 psi) 233 ± 5 bar     |
35700 ± 500 kPa (5180 ± 75 psi) 357 ± 5 bar     |
Line Relief Setting     | 35700 ± 500 kPa (5180 ± 75 psi) 357 ± 5 bar     |
27600 ± 500 kPa (4000 ± 75 psi) 276 ± 5 bar     |
35700 ± 500 kPa (5180 ± 75 psi) 357 ± 5 bar     |
28800 ± 500 kPa (4180 ± 75 psi) (1) 288 ± 5 bar     |
23300 ± 500 kPa (3380 ± 75 psi) 233 ± 5 bar     |
23300 ± 500 kPa (3380 ± 75 psi) 233 ± 5 bar     |
35700 ± 500 kPa (5180 ± 75 psi) 357 ± 5 bar     |
Flow Rate     | 20 L/min (5 US gpm)     |
55 L/min (15 US gpm)     |
20 L/min (5 US gpm)     |
190 L/min (50 US gpm)     |
190 L/min (50 US gpm)     |
190 L/min (50 US gpm)     |
154 L/min (40 US gpm)     |
Flow Rate     | 160 L/min (42 US gpm)     |
55 L/min (15 US gpm)     |
160 L/min (42 US gpm)     |
190 L/min (50 US gpm)     |
190 L/min (50 US gpm)     |
190 L/min (50 US gpm)     |
210 L/min (54 US gpm)     |
Signal Limiter Valve     | -     | 26000 kPa (3770 psi)     |
-     | -     | -     | -     | -     |
Signal Limiter Valve     | -     | 26000 kPa (3770 psi)     |
-     | -     | -     | -     | -     |
Signal Limiter Valve     | -     | -     | -     | 27500 kPa (4000 psi)     |
-     | -     | -     |
Signal Limiter Valve     | -     | -     | -     | 27500 kPa (4000 psi)     |
-     | -     | -     |
Signal Limiter Valve     | -     | -     | -     | -     | 22000 kPa (3200 psi)     |
-     | -     |
Signal Limiter Valve     | -     | -     | -     | -     | 22000 kPa (3200 psi)     |
-     | -     |
Signal Limiter Valve     | -     | -     | -     | -     | -     | 22000 kPa (3200 psi)     |
-     |
Signal Limiter Valve     | -     | -     | -     | -     | -     | 22000 kPa (3200 psi)     |
-     |
( 1 ) | The relief valves are located on the swing motor. |
256-0500 Bank Valve (Seven (Harvester Head))     | ||||||
Function     | Boom     | Stick     | Rotator     | Swing     | Supply Harvester Head     |
|
Line Relief Setting     | 35000 kPa (5080 psi)     |
35000 kPa (5080 psi)     |
23000 kPa (3335 psi)     |
33800 kPa (4900 psi) (1)     |
-     | -     |
Line Relief Setting     | 35000 kPa (5080 psi)     |
35000 kPa (5080 psi)     |
23000 kPa (3335 psi)     |
33800 kPa (4900 psi) (1)     |
-     | -     |
Flow Rate     | 20 L/min (5 US gpm)     |
20 L/min (5 US gpm)     |
105 L/min (28 US gpm)     |
190 L/min (50 US gpm)     |
0     | 0     |
Flow Rate     | 160 L/min (42 US gpm)     |
160 L/min (42 US gpm)     |
105 L/min (28 US gpm)     |
190 L/min (50 US gpm)     |
190 L/min (50 US gpm)     |
190 L/min (50 US gpm)     |
Signal Limiter Valve     | -     | -     | 21000 kPa (3045 psi)     |
32500 kPa (4700 psi)     |
-     | -     |
Signal Limiter Valve     | -     | -     | 21000 kPa (3045 psi)     |
32500 kPa (4700 psi)     |
27500 kPa (4000 psi)     |
27500 kPa (4000 psi)     |
( 1 ) | The relief valves are located on the swing motor. |
218-8378 Bank Valve (Five (Harvester Head))     | |||||
Function     | Boom     | Extension     | Stick     | Swing     | Rotator     |
Line Relief Setting     | 35700 ± 500 kPa (5180 ± 75 psi) 357 ± 5 bar     |
31700 ± 500 kPa (4600 ± 75 psi) 317 ± 5 bar     |
35700 ± 500 kPa (5180 ± 75 psi) 357 ± 5 bar     |
28800 ± 500 kPa (4180 ± 75 psi) (1) 288 ± 5 bar     |
22700 ± 500 kPa (3290 ± 75 psi) 227 ± 5 bar     |
Line Relief Setting     | 35700 ± 500 kPa (5180 ± 75 psi) 357 ± 5 bar     |
31700 ± 500 kPa (4600 ± 75 psi) 317 ± 5 bar     |
35700 ± 500 kPa (5180 ± 75 psi) 357 ± 5 bar     |
28800 ± 500 kPa (4180 ± 75 psi) (1) 288 ± 5 bar     |
22700 ± 500 kPa (3290 ± 75 psi) 227 ± 5 bar     |
Flow Rate     | 20 L/min (5 US gpm)     |
145 L/min (38 US gpm)     |
20 L/min (5 US gpm)     |
190 L/min (50 US gpm)     |
105 L/min (28 US gpm)     |
Flow Rate     | 160 L/min (42 US gpm)     |
115 L/min (30 US gpm)     |
160 L/min (42 US gpm)     |
190 L/min (50 US gpm)     |
105 L/min (28 US gpm)     |
Signal Limiter Valve     | -     | -     | -     | -     | -     |
Signal Limiter Valve     | -     | -     | -     | -     | -     |
Signal Limiter Valve     | -     | -     | -     | 27500 kPa (4000 psi)     |
-     |
Signal Limiter Valve     | -     | -     | -     | 27500 kPa (4000 psi)     |
-     |
Signal Limiter Valve     | -     | -     | -     | -     | 21000 kPa (3045 psi)     |
Signal Limiter Valve     | -     | -     | -     | -     | 21000 kPa (3045 psi)     |
( 1 ) | The relief valves are located on the swing motor. |
Control Valves     | |||
Function     | Implement     | Travel     | Intermittent Saw (if equipped)     |
Main Relief Valve (Load Sensing)     | 35800 ± 300 kPa (5200 ± 45 psi) (Felling Head) 28000 ± 300 kPa (4060 ± 45 psi) (Harvester Head)     |
35800 ± 300 kPa (5200 ± 45 psi)     |
The relief valve is not used. Turn the screw on the relief valve until the screw bottoms out.     |
Travel Control Valve
218-8377 Control Valve     | ||||
Function     | Left Travel     | Side Leveling     | Forward Leveling     | Right Travel     |
Flow Rate (A)     | 175 L/min (46 US gpm)     |
105 L/min (28 US gpm)     |
105 L/min (28 US gpm)     |
175 L/min (46 US gpm)     |
Flow Rate (B)     | 175 L/min (46 US gpm)     |
105 L/min (28 US gpm)     |
105 L/min (28 US gpm)     |
175 L/min (46 US gpm)     |
Signal Limiter Valve (C)     | -     | 22235 kPa (3225 psi)     |
-     | -     |
Signal Limiter Valve (D)     | -     | 22235 kPa (3225 psi)     |
-     | -     |
Signal Limiter Valve (E)     | -     | -     | 22235 kPa (3225 psi)     |
-     |
Signal Limiter Valve (F)     | -     | -     | 22235 kPa (3225 psi)     |
-     |
Control Valve (Intermittent Saw)
242-4238 Control Valve     | ||
Function     | Saw     | Saw     |
Flow Rate (A)     | 240 L/min (63 US gpm)     |
240 L/min (63 US gpm)     |
Flow Rate (B)     | 240 L/min (63 US gpm)     |
240 L/min (63 US gpm)     |
Signal Limiter Valve     | -     | -     |
Signal Limiter Valve     | -     | -     |
Implement Pump and Travel Pump
Standby Pressure     | 2200 kPa (320 psi)     |
Margin Pressure     | 2200 kPa (320 psi)     |
Saw Pump
Pump Compensator Pressure (Cutoff)     | 31000 kPa (4500 psi)     |
Load Sensing Control Pressure     | 2000 kPa (290 psi)     |
Pilot Pump
Pump Delivery Pressure     | 4120 ± 200 kPa (600 ± 30 psi)     |
Relief Valve Pressure     | 4120 ± 200 kPa (600 ± 30 psi)     |