ZF 4-1 M, Operating Manual

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Operating Manual ZF 4-1 M / ZF 30 M
7.1 Troubleshooting
First of all check, whether all items of operating instructions have been complied with.
SYMPTOM POSSIBLY CAUSED BY REMEDY
1. High fl uid temperature - Fluid level high - Pump out fl uid to max.
during operation mark on dipstick
- Fluid level low - Add fl uid
- Plugged or restricted - Replace cooler and fl ush
fl uid cooler water system
- No water in cooling - Check cooling system
system and repair
2. Fluid on transmission housing - Loose screws - Tighten to speci fi cation
- Loose screw connections - Tighten, replace
- Loose dipstick - Tighten, replace
- Fluid level high - Pump out fl uid to max.
during operation mark on dipstick
3. Shifts hard - Selector control - Consult service station
- Unknown - Consult service station
4. Slow engagement - Selector control - Consult service station
- Unknown - Consult service station
5. No movement of the boat - Selector control - Consult service station
- Improper selector position - Adjust
- Propeller missing - Replace
- Propeller shaft broken - Consult service station
- Transmission malfunction - Consult service station
- Engine malfunction - Consult service station
Only use oil for automatic gearboxes,
as given in the speci
fi cation in the «List
of recommended oils» on page 82.
6.1.5 TRIAL RUN
1) Carry out a trial run after the oil
change.
2) Set shifting lever to neutral position
(N). Start engine and let it run idle
for a short time to
fi ll the cooler and
pipelines with transmission oil.
3) Stop the engine and check oil level
again.
If necessary, replenish with oil.
Excessive oil should be removed.
The fluid level on the dipstick
should be between the min. and
max. marks.
The fl uid level should be checked
again after a short driving period.
6.1.6 STORAGE
If the transmission is stored for longer
time, for example winter storage, it
should be topped off through the dip-
stick hole with ATF to prevent the unit
from corrosion.
CAUTION
Change the fl uid when putting the
unit into operation again.