Section G. Maintenance Belarus– 510/512 Operating manual
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Operation 18. Steering wheel play
When the engine is running, the
steering wheel play must not exceed
25°. If no so, check and eliminate plays
in the joints of the hydraulic cylinders and
the steering rod.
Operation 19. Adjusting service and
parking brakes. Adjustment of the
brake valve and pneumatic system
pressure regulator
To adjust the brake control, proceed as
follows;
a) unscrew the locknuts (3) of the ad-
justing bolts (2);
b) screw the bolts (2) into the adjust-
ment forks or unscrew then so that
the full brake right pedal travel would
be 105 to 115 mm under a force of
120 to 130 N. The travel of the left
brake pedal must be less by 5 to 20
mm to provide a simultaneous brake
actuation in interlocked condition. Re-
duction of brake pedal travel below
the values specified below is not al-
lowed as it results in premature wear
of brake linings and brake overheat-
ing;
c) tighten the locknuts (3). Interlock the
pedals with the lock strip (1) and check
simultaneous action of the right and left
brakes in motion (1 m max. by the foot-
print). Ingress of lubricant into the brake
causes the disk oiling and reduces the
friction between their working surfaces,
brakes do not act. In such a case, disas-
semble the brake, eliminate the oil leak-
age, wash the oiled disks with gasoline
and let them dry for 5 to 8 minutes. After
assembly, adjust the brake control.