Belarus 1025/1025.2/1025.3
Section I.Possible malfunctions
I16
Malfunction, symptom
Correction method
Pressure in the cylinder drops fast upon diesel shut down
Air leakage along pneumatic system
Eliminate leakage
connecting elements
Pressure in the cylinder reduces quickly upon pressing brakes
Brake valve inlet valve is askew,
Eliminate skewness, clean the valve or
clogged or damaged
replace it
Damaged diaphragm of the brake valve Replace diaphragm
Insufficient pressure in the cylinder
Air leakage.
Eliminate air leakage.
Disturbed operation of pressure controller.
Adjust pressure controller.
Defective inlet and delivery valves of
Clean valves off coke deposits and replace
the compressor
them, if considerably worn out.
Great wear of piston rings, hang up of
Clean piston rings off coke deposits or
compressor rings
replace piston rings
Compressor ejects oil in the pneumatic system
Hang up or wear of compressor piston
Clean piston rings off coke deposits or
rings.
replace them.
Pressure controller switches on controller to idle run at pressure less than 0.77...0.80
MPa (7.7...8.0 kgf/cm
2
),and to operation mode — at less than 0.65 MPa(6.5 kgf/cm
2
),
or over 0.70 MPa (7.0 kgf/cm
2
)
Staining of cavities and ducts of pressure
Wash and clean them
controller.
Loosened adjustment cover.
Adjust pressure of compressor switching
on/off
Loss of elasticity, damage or breakage
Replace damaged parts
of rubber parts, spring shrinkage
Skewness, hang up of controller regulating Check valves mobility, put grease, if required
section
Summary of Contents for 1025 2008
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