Belarus 82.3 - Possible Failures in the Pneumatic System and Instructions for Troubleshooting

82.3-0000010 OM
220
6.7 Possible failures in the pneumatic system and instructions for trouble-
shooting
The list of possible failures in the pneumatic system and instructions for trouble-
shooting are shown in Table 6.7.1.
Table 6.7.1
Failure,
external manifestation, cause
Troubleshooting
Pressure in the tank increases slowly
Air leakage from the pneumatic
system for the following reasons:
- pipe
line nuts, fitting nuts, and
coupling clamps are undertight-
ened or damaged
- rubber sealing of the coupling
head is damaged
- the coupling head O-
ring nut
torque is loose
-
dirt ingress under the coupling
head valve
- contact of the dust cover wit
h the
coupling head valve stem
- faulty adjustment of the brake
valve drive
- improper operation of pressure
regulator
- filter of
pressure regulator is
clogged
- pneumatic compressor is faulty
Detect leakages and eliminate them by tightening
junctions or replacing damaged parts
Replace the damaged sealing
Tighten the nut
Clean
Eliminate
Adjust the brake valve drive
Dismount pressure regulator from the tractor and
send it to a repair workshop
Rinse the pressure regulator filter
Contact your dealer
Rapid decrease of pressure in the tank when the engine is stopped
Air leakage through coupling
members of the pneumatic system
Stop the leakage
Rapid decrease of pressure in the tank when brake pedal is depressed
Break valve is faulty
Replace the break valve
Increased oil release into the pneumatic system by the pneumatic compressor
Pneumatic compressor is faulty
Contact your dealer
Insufficient air pressure in the tank
Position of the pressure regulator
adjusting cap is disturbed
Adjust the pressure regulator
Pneumatic compressor is faulty
Contact your dealer