Vehicle System Testing and Adjusting 68
Brake Assembly
(3) Adjustment screw. (4) Adjustment lever.
4. Turn adjustment screw (3) up until a heavy
resistance (drag) is felt on the brake shoes as the
drum is turned.
5. Put a thin blade screwdriver into hole and hold
adjustment lever (4) away from the adjustment
screw.
NOTE: The adjustment lever must be held away
from the adjustment screw when the adjustment
screw is turned backwards.
6. Put the brake tool through a hole into a tooth on
the adjustment screw and turn screw (3)
backward until the brake shoes are free of
resistance (drag).
7. Do steps 3 through 6 to adjust the other brake
lining to drum clearance.
8. Install the plugs. Test the brake to be sure that
both that wheels stop evenly when a brake
application is made.
9. If required, conduct the burning on the brake
shoes and linings for 5 ~ 10 minutes.
Pedal Adjustment
The brake pedal must have proper free play to let
the master cylinder piston return to the release
position and open the relief outlet.
Approximately 5 mm of free play on the pedal is
required.
Hydraulic pressure in the brake lines goes back
through the relief opening and releases the brakes.
If there is no pedal free play, the pressure can not
go back through the relief opening, and the brakes
will tighten and not release.
If there is too much free play, the brake pedal will
below even with the correct brake adjustment.
The master cylinder push rod must be adjusted so
the brake pedal has 3 to 8 mm (.118 to .315 in) of
free play from the pedal stop to the push rod contact
point with the master cylinder piston.
Location of Master Cylinder
(1) Master Cylinder. (2) rod.9
If the pedal adjustment is not correct, do the
procedure that follows:
1. Remove Accel. Pedal for removing floor plate.
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