Mitsubishi 1989-1993 GALANT Service Manual page 1179

SERVICE BRAKES
Bleeder screw
Delay
(for the left rear brakes)
valve
Bleeder screw
ORDINARY AIR-BLEEDING PROCEDURES
felt; then, with the pedal depressed, loosen the bleeder
screw 113 to l/2 turn and then tighten it before the fluid
pressure is all gone.
(2) Release the brake pedal. Repeat this procedure until there
are no more air bubbles in the brake fluid.
AIR BLEEDING FROM DELAY VALVE 4WD-ABS>
(1) Return the check valve bolt of the delay valve by about
one turn and then bleed the air by following the steps
described above in "Ordinary air-bleeding procedures".
Caution
There is a delay valve bleeder screw for the left rear
wheel brake and for the right rear wheel brake, ensure
the correct one is used.
torque after completing the air bleeding.
AIR BLEEDING FROM HYDRAULIC UNIT <VEHICLES WITH
A.B.S. >
bleeder screw.
Caution
Use an offset (box) wrench to open and close the
bleeder, not a spanner wrench, because a spanner
wrench might cause deformation of the hexagonal part.
"Ordinary air-bleeding procedures".
TSB Revision