Section H. Possible malfunctions and remedies
Belarus – 90/92 Operating manual
111
Continuation of table H-1
MALFUNCTION, SYMPTOM
REMEDY
BRAKES
Poor brakes operation (brakes do not hold)
Disturbed adjustment of brakes control.
Oiling or wear of brake disks’ lining.
Adjust brakes control.
Eliminate oil leaking. If is necessary, replace disks.
REAR PTO
Rear PTO doesn’t transmit full torque (skids)
Disturbed control adjustment due to
considerable wear of friction lining of brake
bands, or some other reason.
Adjust PTO control mechanism.
FRONT DRIVING AXLE
Front axle, during skidding of rear wheels, doesn’t engage automatically at forward
running of tractor
Wear parts of freewheeling clutch of transfer box.
Jamming grooves of exterior race of freewheeling
clutch are contaminated by oil oxidation products
and wearing parts.
Springs of pressed roller mechanism are
deformed.
Safety clutch in intermediate bearing doesn’t
transfer the required torque.
Wearing driven and driving disks of safety clutch.
Disk springs lost elasticity or are crashed.
Replace freewheeling clutch.
Take off the clutch and wash clutch parts.
Replace springs.
Adjust clutch to transfer torque 40. ..80 kgf•m
(400. .. 800 N•m) by drawing up a nut tight of
flange from the side of transfer box.
Replace disks.
Replace springs.
Toe-in of control transfer box has increased
length.
Adjust toe-in length as shown in section F:
«Adjustments».
Fast wearing and tire separation of front wheels
Air pressure mismatch in tires of front and rear
wheels to the recommended norms.
To prevent failures maintain air pressure in tires of
front and rear wheels according to the
recommended norms.
Disturbed adjustment of toe-in.
FDA is engaged permanently because of failure
or jamming in transfer box control.
Adjust.
Check the work of forced engage of FDA. Adjust
control mechanism of transfer box.
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