80-0000010B OM
355
7.6 Possible failures of the brakes and instructions for troubleshooting
The list of possible brake failures and guidelines for troubleshooting are given in ta-
ble 7.6.1.
Table 7.6.1
Failure,
external manifestation, cause
Troubleshooting
Inefficient braking
Increased pedal free travel
Adjust service brakes pedals’ free travel as shown
in subsection 3.7.2 “Check/adjustment of service
brake control”
Frictional brake disks are worn out
Replace frictional disks
No release of one of service brakes
Decreased pedal free travel
Adjust service brake pedals’ free travel as shown in
subsection 3.7.2 “Check/adjustment of service
brake control”
Incomplete return of the pedal to
its original position after braking
due to the weakening or breakage
of the pullback spring of the pedal
Replace the pullback spring of service brake pedal
Loss of power or breakage of pull-
back springs of pressure disks
Replace the pullback springs of pressure disks
No grease in the slots of pressure
disks
Lubricate the slots of pressure disks with grease
MS-1600 HotBrake TU 0254-035-45540231-2012
or BERULUB VPN13
Evidence of wear and corrosion on
operating surfaces of pressure
disks
Smooth out the operating surfaces of pressure
disks
Evidence of wear and corrosion on
surfaces of slots
Polish the slots and then lubricate them with
grease MS-1600 HotBrake TU 0254-035-
45540231-2012 or BERULUB VPN13
Uneven braking of left and right wheels
Faulty adjustment of service
brakes
Adjust service brakes’ pedal travel as indicated in
subsection 3.7.2 “Check/adjustment of service
brakes control.”
Wear of frictional brake disks of
one of the brakes
Replace friction disks
Inefficient operation of parking brake
Faulty adjustment of parking
brake
Adjust the parking brake as indicated in subsection
3.7.4 “Adjustment of parking brake control”
Wear of frictional brake disks of
parking brake
Replace the frictional brake disks of parking brake
ATTENTION: MOST OFTEN, THE TRACTOR BRAKES BREAK DOWN DUE TO
USE OF TRAILED AND SEMI-TRAILED MACHINES THAT DO NOT EMPLOY BRAKES
INTERLOCKED WITH TRACTOR BRAKES. IT IS NOT ALLOWED TO USE TRAILED
AND SEMI-TRAILED MACHINES THAT DO NOT EMPLOY BRAKES INTERLOCKED
WITH TRACTOR BRAKES, IF THEIR WEIGHT EXCEEDS A HALF OF THE TRACTOR’S
WEIGHT!
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