Possible Failures Of The Transmission Hydraulic System And Instructions For Their Troubleshooting - Belarus 1523.5 Operator's Manual

6.9 Possible failures of the transmission hydraulic system and instructions for their
troubleshooting
The list of possible failures in the transmission hydraulic system and instructions for their
troubleshooting are shown in Table 6.9.
Table 6.9
Failure,
external manifestation, cause
Low oil pressure in the transmission hydraulic system
Insufficient oil level in the trans-
mission
Clogging of the distributor-filter
overflow valve
Clogging of the full-flow mesh filter
Clogging of the distributor-filter
Oil leakage through the pressure-
relief valve on the pump drive
Shrinkage of the distributor-filter
overflow valve spring
No oil pressure in the transmission hydraulic system
Breakdown of the gear wheel
pump in the transmission hydraulic
system
Transmission hydraulic
pump drive is off
Damaged parts of the transmission
hydraulic system pump drive
High oil pressure in the transmission hydraulic system
Filled oil does not correspond to
the season (ambient temperature)
Deadlock of the distributor-filter
overflow valve
Insufficient oil level in transmission
Wear or breakage of bearings of
other transmission components
Check oil level in the transmission as indicated in
section 5 "Maintenance service". Refill oil up to the
required level, if necessary.
Rinse the distributor-filter overflow valve
Rinse the full-flow mesh filter
Remove the cap and rinse the distributor-filter
Replace the pressure-relief valve
Adjust pressure by means of adjusting washers. If
it is not possible - replace the spring
Replace the gear wheel pump in the transmission
hydraulic system
system Engage the transmission hydraulic system pump
drive
Replace damaged parts of the transmission hy-
draulic system pump drive
Fill in corresponding seasonal oil
Rinse the distributor-filter overflow valve
Increased noise
Check oil level in the transmission as indicated in
section 5 "Maintenance service". Refill oil up to the
required level, if necessary.
Replace bearings
187
1523.5-0000010 OM
Troubleshooting