Mitsubishi 1989 Galant, Service Manual

Page: 1178 / 1273

SERVICE, BRAKES
Service Adjustment Procedures
<Vehicles without
4 1
2 3
<Vehicles with
FWD
Delay valve
1
3
AWD
5
1
2
4
BLEEDING <Up to 1991 models>
Because the master cylinder employed is the type without the
check valve, air should be bled from the master cylinder by
following the procedures described below (if there is no brake
fluid in the master cylinder).
(1) Disconnect the brake tube from the master cylinder.
(2) Two persons’ should conduct the air bleeding, one person
slowly depressing the brake pedal and holding the pedal
depressed.
(3) In this condition, the other person should use a finger to
close the outlet part of the master cylinder, and then the
first person should release the brake pedal.
(4) Steps (2) and (3) should be repeated three or four times,
and then the master cylinder should be filled with brake
fluid to the specified level.
The air is completely bled from the master cylinder by
steps (1) to (4).
(5) Connect the brake tube to the master cylinder.
(6) Start the engine; then, in the sequence shown in the
illustration, bleed the air from each wheel cylinder, delay
valve and hydraulic unit.
Specified brake fluid: Confoming to or
Caution
1. Use the specified brake fluid. Avoid using a mixture
of the specified brake fluid and other fluid.
2. If brake fluid is exposed to the air, it will absorb
moisture; as water is absorbed from the atmo-
sphere, the boiling point of the brake fluid will
decrease and the braking performance will be
seriously impaired. For this reason, use a hermeti-
cally sealed 1 (1.06 qt.) or 0.5 (0.52 qt.)
brake fluid container.
3. Firmly close the cap of the brake fluid container
after use.
4. For vehicles with the anti-lock braking system, be
sure to install a filter to the
master cylinder
reservoir tank when supplying brake fluid.
NOTE
For FWD-vehicles with the anti-lock braking system, the
brake pedal will have a “heavier” feeling for air bleeding of
the rear brakes than for the front brakes, but this is the
result of the constriction of fluid pressure within the delay
valve, and is not a malfunction.
TSB Revision