Hydrostatic Steering Control - Belarus 80.1 Series Operation And Service Manual

Section 10. Common troubles and their remedies
126
Trouble, External Symptoms
Warm tightening nut slackened.
Increased play in front wheel bevel bearings or
steering rod joints.
Slackened nuts attaching the pitman arm, sector,
and steering knuckle tie-rods.
Increased axial displacement of the turn shaft
Enhanced clearance in the «worm-sector» mesh-
ing.
Enhanced play in universal-joint connections in
the steering wheel drive.
Worm nut slackened
Lack of, or insufficient, oil pressure in the steering
wheel hydraulic system. Delivery pump faulty.
Insufficient oil level in the oil tank.
Wedging-up of the steering-wheel cardan splined
tail-piece in the metering pump driving shaft
Substantial friction in mechanical components of
the steering column or FDA reduction gear.
Lack of oil in oil tank.
Worn-out seals of the turn cylinder.
Steering Wheel Spontaneous Rotation 2 («Motoring») With Operator's Hands Removed
Metering pump spool would not return to
«Neutral» position:
(a) Wedging-up of the steering-wheel cardan
splined tail-piece in the metering pump driv-
ing shaft.
(b) Substantial friction in mechanical compo-
nents of the steering column.
Conflict Between the Steering Wheel Turning Direction and That of Wheels
Incorrect connections of metering pump cylinder
outlets to the turn cylinder.
Enhanced Instability of Front Wheels
Enhanced Play of the Steering Wheel

10.3.1. HYDROSTATIC STEERING CONTROL

Enhanced Steering Wheel Effort
Steering Wheel Rotates Without Stop
Belarus 80.1/80.2/82.1/82.2/82Р —Operation and Service Manual
Tighten up the nut to 2 kgf•m, back it off 1/6 turn, and
secure with a cotter-pin.
Adjust, as required.
Tighten up the nuts.
Adjust the fault.
Adjust, as required.
Replace worn-out parts.
Tighten up the nut.
Have it repaired or replace the pump.
Fill up the tank to the required level.
Locate wedging-up and remove.
Remove friction.
Fill up the tank to the required level and pump the
system through.
Replace with new ones.
Locate wedging-up and remove.
Remove the cause.
Change over connections, as appropriate.
Table 14, continued
Remedy