Toyota 4-Runner 1985 Repair Manual page 21

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MAINTENANCE - Maintenance Operations MA-11
MA0056
MA0057 MA0058
Freeplay
MA0065
BRAKES
16. INSPECT BRAKE LINE PIPES AND HOSES
NOTE: Inspect in a well lighted area. Inspect the entire
circumference and length of the brake hoses using a mir-
ror as required. Turn the front wheels fully right or left be-
fore inspecting the front brake.
(a) Check all brake lines and hoses for:
• Damage
• Corrosion
• Wear
• Leaks
• Deformation
• Bends
• Cracks • Twists
(b) Check all clamps for tightness and connections for
leakage.
(c) Check that the hoses and lines are clear of sharp
edges, moving parts and the exhaust system.
(d) Check that the lines installed in grommets pass
through the center of the grommets.
17. INSPECT REAR BRAKE LININGS AND DRUMS
(2WD: See page BR-30 or BR-37, 4WD: See page BR-43)
(a) Check the linings for wear.
Minimum lining thickness: 1.0 mm (0.039 in.)
(b) Check the brake drums for scoring or wear.
Maximum drum inside diameter: 256.0 mm (10.079 in.)
(c) Clean the brake parts with a damp cloth.
NOTE: Do not use compressed air to clean the brake
parts.
18. INSPECT FRONT BRAKE PADS AND DISCS
(2WD: See page BR-13 or BR-19, 4WD: See page BR-25)
(a) Check the thickness of the disc brake pads and check
for irregular wear.
Minimum pad thickness: 1.0 mm (0.039 in.)
(b) Check the disc for wear or runout.
Minimum disc thickness:
RN 2WD 1/2 ton 21.0 mm (0.827 in.)
1 ton and C&C 24.0 mm (0.945 in.)
RN 4WD 11.5 mm (0.453 in.)
Maximum disc runout: 0.15 mm (0.0059 in.)
CHASSIS
19. INSPECT STEERING LINKAGE
(a) Check that the steering wheel freeplay is:
Maximum: 30 mm (1.18 in.)
With the vehicle stopped and pointed straight ahead,
rock the steering wheel gently back and forth with
light finger pressure.
If incorrect, adjust or repair.