Belarus 82.3 - Possible Failures of Brakes and Instructions for Troubleshooting

82.3-0000010 OM
219
6.6 Possible failures of brakes and instructions for troubleshooting
The list of possible brake failures and guidelines for troubleshooting are shown in
table 6.6.1
Table 6.6.1
Failure,
external manifestation, cause
Troubleshooting
Inefficient braking
Increased pedal travel
Adjust service brake pedal travel, as described in
clause 5.4.4.3 "Operation 33. Check/
adjustment of
service brake control"
Frictional brake disks are worn-out
Replace frictional disks
Sticking of any of service brakes
Decreased pedal travel
Adjust service brake pedal travel, as described in
clause 5.4.4.3 "Operation 33. Check
/adjustment of
service brake control"
Incomplete return of the pedal to its
initial position after braking due to
weakening or breakdown of the pe-
dal pullback spring
Replace the pullback spring of the service brake
pedal
Weakening or breakdown of the
pressure plate pullback springs
Replace the pullback springs of the pressure plates
No grease in pressure plate holes
Lubricate the holes of the pressure plates with
grease Lithol-24 GOST 21150-87
Presence of wear and corrosion
signs on working surfaces of pres-
sure plates
Dress the working surfaces of the pressure discs
Presence of wear and corrosion
signs on the hole surfaces
Polish the holes, then lubricate them with grease
Lithol-24 GOST 21150-87
No oil (oil shortage) in the brake
casing
Refill (top up) oil into the brake casing
Uneven braking of left and right wheels
Faulty adjustment of service
brakes
Make adjustments, as described in clause 5.4.4.3
"Operation 33. Check/adjustment of service brake
control"
Wear of frictional discs of one of
the brakes
Replace the frictional discs
Ineffective operation of parking brake
Improper adjustment of the parking
brake
Adjust the parking brake, as described in clause
5.4.4.
4 "Operation 34. Check/adjustment of parking
brake control"
Frictional discs of the parking
brake are worn out
Replace the frictional parking brake discs