BELARUS-
1523/1523В
/1523.3
/1523В.3
Troubleshooting
223
Trouble, symptoms
Remedy
pedals, service cylinders and pressure
disks.
Incomplete release of one of the service brakes:
Loosening or breakage of the release
springs of the pressure disks.
Replace the springs
Jamming of the master cylinder piston due
to:
•
soiling or corrosion;
Disassemble the working cylinder, clean the
parts from dirt and corrosion and bleed air
from the system.
•
swelling of the sealing collars due to in-
gress of mineral oil.
Replace the collar, flush the system and
bleed air from there.
Non-uniform braking of the right- and left-hand wheels:
War-out of the friction surfaces of one of the
disks.
Replace the disks.
Maladjustment of the length of the link bolts
of the service brakes.
Perform the adjustment (see Section “Con-
struction and Operation of Tractor Compo-
nents”, item “Adjusting the Brakes”).
Poor operation of the leveling valves of the
hydraulic actuator.
Remove the tube connecting the two master
brake cylinders; remove the unions and lev-
eling valves from the master brake cylin-
ders; check the quality of the collars and the
presence of the balls. Replace the worn-out
parts.
Clogging or crushing of the pipelines of
brake control or leveling valves of the mas-
ter brake cylinders.
Clean or replace the pipelines.
Spontaneous locking of the brake levers on
axles.
Remove the brake levers from the axle,
clean mounting seats on the axle for the
levers, lubricate them with grease and refit
them on the axle.
ATTENTION!
The failure of the tractor brakes is often caused by using the trailed and
semi-trailed brakeless machines blocked with the tractor brakes. Never use the trailed
and semi-trailed brakeless machines blocked with the tractor brakes, if their mass exceed
half of the tractor mass.
PTO
Rear PTO fails to transmit full torque or continues to rotate on applying the brake:
Maladjustment of the control.
Adjust the distributor control.
Low oil pressure in the transmission hydrau-
lic system.
Adjust the pressure-relief valve on the
transmission hydraulic system.
Low oil pressure at the outlet to the PTO
friction clutch and brake due to excessive
leak in the PTO friction clutch and brake.
Check the pressure applied to the PTO fric-
tion clutch and brake. If necessary, replace
the O-rings of the PTO friction clutch and
reduction gear brake or distributor.
Low oil pressure at the outlet to the PTO
friction clutch and brake due to jamming of
the distributor sliding valve.
Dismantle the distributor, clean and wash its
parts; eliminate the cause of jamming. Re-
place the damaged parts, if any.
The operation of the friction clutch or brake Wash all the friction clutch and brake parts
Summary of Contents for 1523
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