User Manual

217
FAULTS AND REMEDIAL ACTIONS
6. Tractor does not start off
Cause
Actuator not functioning.
No operating range selected.
Adjustment not functioning.
Inlet circuit does not work.
Leak in the main circuit.
Internal leak in the main circuit.
High-pressure limiting valve does not shut.
Flush valve stuck open.
Transmission characteristic not programmed.
Rpm adjustment not set.
Remedial Action
Mechanical Auxiliary mode.
Select operating range I or II. Use auxiliary lever,
if necessary.
Measure servo pressure (too low).
Measure feed and outlet pressure.
Measure feed and outlet pressure.
Check transmission characteristic (at workshop).
Measure control pressure.
Start off in the other directon of travel
Record the transmission characteristic (at
workshop).
Set the rpm adjustment.
7. Transmission oil temperature too high
Cause
Cooler soiled.
Heavy traction in operating range II.
Clutch operated over extended period.
Turboclutch function active for long period.
Leak in the main circuit.
Leakage in feed circuit.
Leakage in outlet line.
High-pressure limiting valve does not shut.
Internal leak in the main circuit.
Remedial Action
Clean the radiator.
Switch to driving mode I.
Fully engage the clutch.
Increase engine speed.
Measure feed and outlet pressure.
Measure feed and outlet pressure.
Measure outlet pressure.
Measure control pressure.
Check transmission characteristic (at workshop).
8. Interruption of tractive power while reversing or during
acceleration-deceleration changes
Cause
Flush valve stuck open.
High-pressure limiting valve does not shut.
Remedial Action
Replace purge valve.
Replace high-pressure limiting valve.
9. Tractor no longer reaches maximum speed
Cause
Incorrect transmission calibration.
Adjustment does not function properly.
Leak in the main circuit.
Remedial Action
Record the transmission characteristic (at
workshop).
Measure servo pressure (too low).
Measure feed and outlet pressure.