Belarus 1523, Operating Manual

Page: 230 / 312

BELARUS- 1523/1523В /1523.3 /1523В.3 Troubleshooting
219
Trouble, symptoms Remedy
“Clutch drive”) by shifting the bolts of the
bracket (40), hydraulic booster and bracket
(33) before tightening.
Clogging the compensation hole in the
master cylinder for the forward or reverse
movement.
Clean the compensation hole of the master
cylinder for the forward or reverse move-
ment and bleed air from the system.
Loss of elasticity of the release spring (47)
(see Section “Construction and Operation of
Tractor Components”, figure in item “Clutch
drive”).
Replace the spring (47).
The free travel of the clutch lever (45) is not provided (see Section “Construction and
Operation of Tractor Components”, figure in item “Clutch drive”) when stepping on the
clutch pedal
Absence of clearance between the piston
and the piston lifter of the master cylinder
for the forward and reverse motion.
Perform the adjustment (see Section “Clutch
Control Adjustment”).
Absence of clearance between the piston
lifter of the master cylinder (30) (see Section
“Construction and Operation of Tractor
Components”, figure in item “Clutch drive”)
and piston lifter of the hydraulic booster
(39).
Perform the adjustment (see Section “Clutch
Control Adjustment”).
Presence of air in the hydraulic clutch control
system for the forward and reverse motion.
Pump the brake fluid through the hydraulic
system to bleed air in the forward and re-
verse motion
Insufficient level of the fluid brake in the hy-
draulic system reservoirs for the forward
and reverse motion.
Add the brake fluid to the normal level in the
reservoirs of the master cylinders for the
forward and reverse movement. Pump the
brake fluid through the hydraulic system to
bleed air in the forward and reverse motion.
Lack of the leak-tightness of the working
chambers of the master and service cylin-
ders and tap due to damage or wearing-out
of the cups or O-rings.
Replace the cups or O-rings in the master
and service cylinders and in the tap, if they
are worn out. Check if the mirrors of the
master and service cylinders and tap free of
burrs, irregularities or cissing. Pump the
brake fluid through the hydraulic system to
bleed air in the forward and reverse motion.
Leakage of brake fluid in the connections or
pipelines in the hydraulic drive system. Air
inflow into the hydraulic system.
Tighten the connections, replace the damages
parts. Pump the brake fluid through the hy-
draulic system to bleed air in the forward
and reverse motion.
Clogging of the hole in the union of the reservoir
(for the forward motion) or in the piston (for the
reverse) causing the vacuum in the master cyl-
inder due to which air is sucked through the
seals into the cylinder.
Clean the hole. Pump the brake fluid through
the hydraulic system to bleed air in the for-
ward and reverse motion.
Blocking of the hydraulic drive pipeline due
to a dent or clogging.
Replace the pipelines. Pump the brake fluid
through the hydraulic system to bleed air in
the forward and reverse motion.
Oil leakage through the O-rings of the hydrau- Replace the O-rings in the hydraulic booster.