Mitsubishi 1992 3000GT, Service Manual

Page: 889 / 1308

SERVICE BRAKES On-vehicle Service
rod
Operat
rod
Lock nut
BRAKE PEDAL CHECK AND ADJUSTMENT
BRAKE PEDAL HEIGHT
1. Turn off the carpet etc. at under the brake pedal.
2. Measure the brake pedal height as illustrated. If the brake
pedal height is not within the standard value, adjust as
follows.
Standard value (A): 177-182 mm (7.0-7.2 in.)
(1) Disconnect the stop light switch connector, loosen
the lock nut, and move the stop light switch to a
position where it does not contact the brake pedal
arm.
(2) Adjust the brake pedal height by turning the operating
rod with pliers (with the operating rod lock nut loos-
ened), until the correct brake pedal height is obtained.
(3) Screw in the stop light switch until it contacts the
brake pedal stopper (just before the brake pedal is
caused to move). Back off the stop light switch
to 1 turn and secure by tightening the lock nut.
(4) Connect the connector of the stop light switch.
(5) Check to be sure that the stop light is not illuminated
with the brake pedal released.
Reference value (B): mm in.)
(6) On vehicles with automatic transaxle, check the
shift-lock mechanism. (Refer to GROUP 23
Transaxle Control.)
3. Return the carpet etc. to the original position.
C
BRAKE PEDAL FREE PLAY
1. With the engine stopped, press the brake pedal two or
three times. After eliminating the vacuum in the power
brake booster, press the pedal down by hand, and confirm
that the amount of movement before feeling resistance
is met (the free play) is within the standard value range.
Standard value (C): 3-8 mm in.)
2. If the free play is less than the standard value, confirm
that the clearance between the stop light switch and brake
pedal is within the standard value.
If the free play exceeds the standard value, it is probably
due to excessive play between the pin and brake
pedal arm. Check for excessive clearance and replace
faulty parts as required.
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