Shop Manual

20-90
4. Operation Force
Special Tool
Serial No. Part Description Quantity
1 Tape 1
Depress the pressure meter with foot to measure its maximum operation force.
Conduct measurement when the engine is under idle speed.
Exhaust of Brake Pipeline
The exhaust operation should be
conducted by two persons, one refills the
brake fluid and the other exhausts air.
Prepare some extra brake fluid to prevent
the brake fluid from using out during
operation.
The engine should be stopped when
exhaust the air.
1) Install one plastic tube on the exhaust
outlet and the other end of plastic tube
insert into the reservoir. The reservoir
should maintain half fluid.
2) Depress the brake pedal for several times.
Loose the exhaust screws when the pedal
is depressed and tight the exhaust screw
before the pressure in the cylinder is
reduced. Repeat the process above until
the air is exhausted completely.
Depress the brake pedal for one time
every 3 seconds.