Belarus 1523, Operating Manual

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BELARUS- 1523/1523В /1523.3 /1523В.3 Troubleshooting
220
Trouble, symptoms Remedy
lic booster.
Insufficient free travel of the clutch pedal
(the pedal rests against the cab wall).
Increase the free travel of the clutch pedals
for the forward and reverse motion by turn-
ing the forks (5, 15) (see Section “Construc-
tion and Operation of Tractor Components”,
figure in item “Clutch drive”) and bolts (3,
17).
Adjust the clearance between the piston and
piston lifter of the master cylinder for the
forward and reverse motion (see Section
“Construction and Operation of Tractor
Components”, item “Clutch Control Adjust-
ment”). Pump the brake fluid through the
hydraulic system to bleed air in the forward
and reverse motion.
The travel of the piston lifter of the master cyl-
inder (10) and (19) shall be at least 30 mm.
The travel of the hydraulic booster piston and,
respectively, of the clutch lever (45) when the
clutch pedal is stepped on completely shall be
at least 24 mm.
No force on the clutch pedal. Presence of air in the hydraulic system. The
cups and O-rings in the master and service
cylinders and tap are worn-out.
Replace the cups and O-rings in the master
and service cylinders and tap. 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.
The hydraulic booster, service cylinder and
рычаг (45) (see Section “Construction and
Operation of Tractor Components”, figure in
item “Clutch drive”) are not set coaxially.
Ensure the coaxiality of the hydraulic
booster, service cylinder and lever (45) by
shifting the bolts of the bracket (40), hydrau-
lic booster and bracket (33) before tighten-
ing.
The flexible hose (24) (see Section “Con-
struction and Operation of Tractor Compo-
nents”, figure in item “Clutch drive”) dilates,
swells, lengthens.
Replace the flexible hose (24).
Gearbox
Low pressure in the hydraulic system:
Lack of oil in the transmission housing. Add oil to the “ П” (Full) mark ±5 mm against
the oil gauge glass.
Clogging of the hydraulic system screen. Wash the screen.
Seizure of the overflow valve in the distrib-
uting filter.
Flush the distributing filter valve.
High pressure in the hydraulic system:
Seizure of the overflow valve in the distrib-
uting filter.
Flush the distributing filter valve.
The oil draining channels in the transmis- Flush the oil draining channels.