Possible Failures In Rear Axle And Guidelines For Troubleshooting; Possible Failures In Rear Power Take-Off Shaft And Guidelines For Troubleshooting - Belarus 1822.3 Operator's Manual

7.5 Possible failures in rear axle and guidelines for troubleshooting

List of possible failures in rear axle and guidelines for troubleshooting are shown in
Table 7.5.
Table 7.5
Failure, external manifestations,
cause
Improper adjustment of gears en-
gagement of main gear according
to through tooth-contact pattern
and side clearance
Improper adjustment of conical
bearings of main gear
Not enough oil in transmission
Gear teeth damage
Low pressure of oil running in work
space of hydraulic cylinder piston
of lock-up clutch
Electrical hydraulic
valve for lockout control doesn't
operate
7.6 Possible failures in rear power take-off shaft and guidelines for trouble-
shooting
List of possible failures of rear power take-off shaft and guidelines for troubleshoot-
ing are shown in Table 7.6.
Table 7.6
Failure, external manifestations,
cause
Rear PTO shaft end extension does not rotate upon start-up
PTO mode selection handle is
not shifted in independent drive
position
Improper adjustment of valve
control
Oil pressure loss at valve input
or at valve output to PTO friction
coupling
Rear PTO shaft does not transmit full torque ("skidding")
Improper adjustment of valve
control
Increased noise of the main gear
- adjust of gears engagement of main gear accord-
ing to through tooth-contact pattern;
- adjust side clearance in engagement of main pair
(0.25...0.55 mm).
Adjust bearing preload
Refill oil up to oil level mark
Check the condition of gear tooth ring. There shall
not be any chippage and damage. Gears with
damaged teeth shall be replaced in pairs
Differential lock does not work
Check oil pressure. In case it is below 900 kPa,
find and correct the trouble in transmission hydrau-
lic system operation
distribution Check differential lock ECS, ease of spool move-
ment, correct the trouble
Check and shift the handle in up position
Adjust valve control
Check pressure at control valve input, in case there is no
pressure correct the trouble of transmission hydraulic sys-
tem. In case there is no pressure at valve output to PTO
friction coupling replace the control valve
Adjust valve control
306
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Troubleshooting
Troubleshooting