Symptom
Possible cause
Remedy
17. High oiltemperature.
17.1 Excessive fluid in transmission.
17.2 Oilcooler is dirty.
17.3 No water in circuit.
17.4 Undersized cooler.
17.5 Clutch is slipping.
17.6 Excessive friction of the
reverse clutch.
17.7 Possible bypass in the cooling
circuit.
17.1 Remove excessive fluid with com-
mercialsuction pump.
17.2 Replace the cooler and check the
water circuit.
17.3 Check the cooling circuit.
17.4 Replace the cooler with a proper
one.
17.5 Refer to 18.
17.6 Check the clutch play and the cor-
rect position of the piston.
17.7 Reduce the bypass.
18. Slipping clutch
18.1 Low pressure.
18.2 Fluid level in transmission is low.
18.3 Shift lever not properly adjusted.
18.4 Trolling lever not in the detent
position.
18.5 Wear on clutch discs.
18.6 Piston rings in clutch are faulty.
18.7 Inadmissible fluid used.
18.8 Water in the fluid.
18.9 Piston rings on input shaft
are faulty.
18.1 Refer to 15.
18.2 Refill with fluid.
18.3 Regulate at the end of the way.
18.4 Ajust the lever at the detent
position.
18.5 Disassemble transmission, replace
clutch discs.
18.6 Disassemble transmission, replace
piston rings.
18.7 Drain fluid, refill with prescribed
fluid.
18.8 Repair leakage at cooler or replace
cooler. Change transmission fluid.
18.9 Remove control block and replace
piston rings.
19. Noise.
- hydraulic
19.1 Oilfilter is dirty.
19.2 Fluid level in transmission is low.
19.3 Oilsuction hose not properly
adjusted.
19.4 Defective cover filter : air suction.
- at idle speed
19.5 Coupling.
- under load
19.6 Wrong shimming.
19.7 Defective gears.
19.1 Replace oil filter.
19.2 Refill with fluid.
19.3 Replace the seal and adjust
correctly the suction hose.
19.4 Replace cover filter.
19.5 Replace.
19.6 Re-shim.
19.7 Replace defective gears.
20. Engagement not possible.
20.1 Fluid level in transmission is low.
20.2 Fine filter is dirty.
20.3 Incorrect shift lever position.
20.4 Coupling is damaged.
20.5 Controlblock.
20.6 Shifting lever is loose.
20.7 Low pressure.
20.1 Refill with fluid.
20.2 Replace fine filter.
20.3 Regulate at the end of the way.
20.4 Replace coupling.
20.5 Replace control block.
20.6 Tighten clamping bolt on
shifting lever.
20.7 Refer to 15.
21. Slow engagement.
21.1 Fluid level in transmission is low.
21.2 Shift lever.
21.3 Regulate.
21.1 Refill with fluid.
21.2 Low pressure.
21.3 Refer to 15.
22. Hard shifting.
22.1 Shift lever.
22.2 Controlblock is dirty.
22.1 Regulate.
22.2 Disassemble the control valve and
clean.
34
Repair Manualand Spare Parts List
Section 9
