Possible Failures In Rear Axle And Instructions For Their Troubleshooting - Belarus 2022.6 Operator's Manual

6.4 Possible failures in rear axle and instructions for their troubleshooting

The list of possible failures in rear axle and instructions for their troubleshooting are
shown in table 6.4.1.
Table 6.4.1
Failure, external manifestation,
cause
Improper adjustment of gear en-
gagement of main gear according
to tooth-contact and side clearance
Improper adjustment of conic bear-
ings of the main gear
Not enough oil in transmission
Gear teeth damage
Low pressure of oil running to the
working cavity of the hydraulic cyl-
inder piston for lock-up clutch
Distribution valve for lock-up clutch
control fails to operate
Transmission hydraulic
pump drive is off
Increased noise of the main gear
- adjust gear engagement of main gear according
to tooth-contact;
- adjust side clearance in the engagement of main
pair (from 0.25 to 0.55 mm).
Adjust bearing preload
Check oil level in the transmission casing and refill
oil to the oil level mark if necessary
Check the condition of the gear tooth ring. Chip-
ping and damage are not allowed. Gears with
damaged teeth shall be replaced in pairs
Differential lock fails to operate
Check oil pressure. If pressure is lower than 1100
kPa, find and eliminate the defect in operation of
the transmission hydraulic system
Check the differential lock ECS operability, ease of
spool movement, eliminate the failure
There is no pressure in the hydraulic system
system Start the transmission hydraulic system pump drive
Troubleshooting
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2022.6-0000010 OM