40 - 9
Powershift Gearbox
Gearbox Oil Contaminated with Water
Carefully inspect the gearbox oil for signs of water contamination. Contaminated oil will contain water droplets or be visibly
emulsified. Water droplets may be visible on the dipstick or inside the filler tube. For oil analysis purposes, the maximum
permissible water content of the oil is 0.10%.
If the gearbox oil has been contaminated with water, faults or damage to the gearbox may be apparent as a result. Before
remedying, thoroughly investigate and rectify the cause of the water contamination.
Note: The correct gearbox oil is given in Section 3, Service Capacities and Lubricants.
Possible Cause Remedy
1 Water ingress during filling/topping up. Carry out flushing procedure.
Refill with the correct oil, see Section 3,
2 Missing/incorrect dipstick, damaged filler tube. Renew missing/incorrect/damaged components.
Carry out flushing procedure.
Refill with the correct oil, see Section 3,
3 Machine operated in deep water. Carry out flushing procedure.
Refill with the correct oil, see Section 3,
4 Gearbox casings damaged. Inspect, renew damaged components.
Carry out flushing procedure.
Refill with the correct oil, see Section 3,
5 Gearbox oil circuit pipes/hoses damaged. Inspect, renew damaged components.
Carry out flushing procedure.
Refill with the correct oil, see Section 3,
Gearbox faults caused typically by water contamination and other factors related to the gearbox oil:
Fault Possible Cause Remedy
1 Pressurisation of gearbox Water in oil combined with heat Replace/renew dipstick.
casing - Dipstick blows out/oil from torque converter causes Carry out flushing procedure.
leaking from dipstick tube. steam. Refill with the correct oil, see Section 3,
Gearbox over filled with oil. Drain the oil level to the correct level,
see Routine Maintenance - Checking
Transmission Oil Level.
2 Clutch Failure - Friction Lining Water ingress. Renew friction plates.
Separation. Carry out flushing procedure.
Refill with the correct oil, see Section 3,
Overheating transmission oil. See Fault Finding - Overheating.
3 Badly worn/noisy bearings. Water ingress. Fit new bearings.
Carry out flushing procedure.
Insufficient lubrication. Refill with the correct oil, see Section 3,
Section F Transmission
9803/3280
Section F
40 - 9
Issue 1
Fault Finding
To Next Page
Loading...
Need help?
General
