
Section 10. Common troubles and their remedies
Belarus 80.1/80.2/82.1/82.2/82
Р —Operation and Service Manual
128
Table 14, continued
Trouble, External Symptoms
Remedy
Alternator Would Not Develop Full Power
Slipping of the alternator driving belt.
Adjust belt tension.
Alternator faulty.
Remove the alternator and have is sent to the work-
shop for repair.
Alternator Noise
Slipping or excessive tension of the fan belt.
Adjust belt tension.
Bearings outworn.
Remove the alternator and have it sent to the work-
shop.
Electric Torch Pre-Heater Control Lamp Would Not Light Up
Electric torch pre-heater circuit open.
Locate and remove the fault.
Faulty components in ETH circuit.
Replace faulty components, if any.
10.6. CAB HEATING AND VENTILATION SYSTEM
No Warm Air Inflow Into the Cab
No circulation of fluid (water) through the heating
block.
The cock is shut down
– open the same. Clogged
hoses
– remove clogging. Air and/or ice plugs in the
pre-heater hoses
– remove the plugs. Fan inopera-
tive
– take expert advice.
High Humidity Warm Air Inflow to the Cab
Fluid leaks in the heater radiator and through pre-
heater system connections. Damaged hoses.
Eliminate leaks and/or replace damaged hoses.
10.7. PNEUMATIC SYSTEM
Insufficient Pressure In the Air Bottle, Pressure Slowly Rises But
Quickly Drops When Diesel-Engine Stops
Air leaks from the pneumatic system.
Eliminate leaks, if any.
Compressor faulty.
Remove the faulty compressor and have it sent to a
repair workshop.
Coupling head faulty.
Replace seals or the head.
Bottle Pressure Quickly Decreases When Brake Pedals are Actuated
Brake cock damaged.
Remove the faulty cock and have it sent to a repair
workshop.
Elevated Throw-Out of Oil Into the Pneumatic System
Compressor faulty.
Remove the faulty compressor and have it sent to a
repair workshop.
No Air-Bleeding to Inflate Tyres
Insufficient sinking of the air-bleed valve rod in the
pressure regulator.
Screw fully the nut of connecting hose on the union.
Pressure regulator switched the compressor over
to idle.
Reduce pressure in
the bottle by 1.5…2.0 kgf/cm
2
.
Trailer Brakes Ineffective or Slow In Release
Brake valve drive adjustment disturbed.
Re-adjust the valve.
Brake valve adjustment disturbed.
Remove and have it sent to a repair workshop.
Trailer brake system faulty.
Remove the fault.