Belarus 1025 2008, Operation Manual

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Belarus 1025/1025.2/1025.3 Section I. Possible malfunctions
I15
Malfunction, symptom Correction method
Too humid warm air is fed to cabin
Fluid leakage in heater radiator Eliminate leakage or replace radiator.
Fluid leakage in system connections Tighten coupling clamps of heater
Pneumatic system
Slow build-up of pressure in the cylinder
Air leakage from pneumatic system:
• nuts of pipelines, fittings, coupling Find out leakage sites and eliminate them
• clamps are poorly tighten or damaged by tightening couplings or replacing
damaged parts
• rubber sealing of connecting head is Replace damaged sealing
damaged
• loose nut of connecting head sealing ring Tighten it
• mud under connecting head valve Clean it
• contact of dust-protecting cover with Eliminate it
valve rod of the connecting head
• deformed valve parts, torn diaphragm, Check state of valve parts and, if necessary
loose cover fastening in the brake valve replace them, tighten fastening bolts.
- disturbed adjustment of valve drive Make adjustment (see section
“Adjustments”).
• disturbed operation of pressure controller Dismount it and send to workshop for
repair.
Air leakage via compressor valves Dismount compressor head, clean valves
and seats off coke deposits
Replace damaged parts.
Hang up or wear of compressor piston Dismount compressor head and cylinder
rings clean rings off coke deposits and, if
necessary, replace them