Lonking CDM853 - CHAPTER VII MAINTENANCE AND SERVICING OF AIR-CONDITIONING SYSTEM

146
Fault
Fault
Fault
Fault
Cause
Cause
Cause
Cause
Action
Action
Action
Action
Filling frequency of
filling valve is too
high.
The charging pressure of energy
accumulator is wrongly set.
Check the air pressure of energy
accumulator.
Filling valve does not work.
Replace the filling valve.
No enough oil or
liquid passes
through filling valve .
Pump does not work.
Check the flow and pressure of the pump.
Pipeline is blocked.
Replace oil pipe.
Filling valve does not work.
Replace filling valve.
Reaction of brake
is very slow.
The brake cannot be properly
adjusted.
Adjust the brake.
The brake does not work.
Check the brake.
Hydraulic pipeline or joint leaks.
Check leakage and make repairs.
Automatic adjuster does not work.
Check the operation of adjuster.
Braking is not
adequate.
There is no oil in oil tank or oil level
is too low.
Check the oil level in oil tank.
The brake cannot be properly
adjusted.
Check brake adjuster.
There exists oil or grease on brake
disc.
Remove oil dirt or replace with new brake
disc.
Brake pipeline leaks.
Check pipeline.
Automatic adjuster does not work.
Check the operation of adjuster.
There is no charged pressure in
energy accumulator or pressure is
inadequate.
Check energy accumulator for air
charging/.
The brake does not work.
Check the brake.
The brake valve does not work.
Check the brake valve.
Pump is worn out.
Check the system pressure.
Braking is too
sensitive.
The brake does not work.
Check the brake.
The brake valve does not work.
Replace the brake valve.
The brake is
incompletely
released.
The brake cannot be properly
adjusted.
Adjust the brake.
The brake does not work.
Check the brake.
Angle of pedal is outside the range
of adjustment.
Adjust the angle of pedal.
The oil cylinder on the wheel does
not work.
Replace the oil cylinder on the wheel.
Automatic adjuster does not work.
Check automatic adjuster.
Air exists in the brake.
Release the brake.
Oil return pressure in oil return pipe
is too high.
Reduce the pressure.
The brake valve does not work.
Replace the brake valve.
No braking
There is no hydraulic oil in the
system.
Check the oil level in oil tank.
Brake pipeline leaks oil.
Check the pipeline for breakage or
damage.
The brake cannot be properly
adjusted.
Adjust the brake.
Automatic adjuster does not work.
Check the pressure of brake pipeline.
Brake does not work.
Check the brake.
Brake valve does not work.
Replace the brake valve.
Pedal rebounds
when the brake is
operated.
Brake pipeline has air.
Empty the air in brake pipeline.