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Brake Pedal Free Height Inspection
1) Check brake pedal free height. If it is not within
specification, check and adjust following item 2) and
3).
Brake pedal free height "a" from dash silencer
222 – 242 mm (8.74 – 9.53 in.)
90˚
2) Check measurement between booster mounting
surface and center of clevis pin hole. When booster
push rod clevis has been reinstalled, it is important
that the measurement is adjusted (refer to "Brake
Booster Inspection and Adjustment").
3) Check stop light switch position. Adjust it if it is out of
specification.
4) Check pedal for dent.
5) Check brake booster for installation.
6) Check brake booster push rod for length.
Repair Instructions
S3RH0A4106001
"a"
I3RH0A410009-01
Brake Control System and Diagnosis:
Brake Pedal Play Inspection
Pedal play should be within the following specification. If
out of specification, check stop light switch for proper
installation position and adjust if necessary.
Also check pedal shaft bolt and booster clevis pin
installation for looseness and replace if defective.
Brake pedal play
"a": 1 – 8 mm (0.04 – 0.31 in.)
"a"
Excessive Pedal Travel Inspection
1) Start engine.
2) Depress brake pedal a few times.
3) With brake pedal depressed with approximately 300
N (30 kg, 66 lbs) load, measure brake pedal to wall
(dash panel silencer) clearance "a". If clearance "a"
is less than specification, the most possible cause is
either rear brake shoes are worn out beyond limit or
air is in lines. Should clearance "a" remain less than
specification even after replacement of brake shoes
and bleeding of system, other possible but
infrequent cause is malfunction of rear brake shoe
adjusters or booster push rod length out of
adjustment.
• Bleed brake system. Refer to "Air Bleeding of
Brake System".
• Remove brake drums for adjuster inspection.
(Refer to "Rear Brake Drum Removal and
Installation in Section 4C".) If defective, correct or
replace.
Clearance "a" between brake pedal and dash
panel silencer
over 110 mm (4.33 in.)
4A-11
S3RH0A4106002
I3RH0A410010-01
S3RH0A4106003
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