Brake Lining Replacement - GMC 1986 P-Truck Service Manual

5-38 BRAKES
BRAKE LINING
REPLACEMENT
3000/3100 MODELS
Remove or Disconnect (Figure 35)
• % of the brake fluid from the master cylinder.
• Raise the vehicle and support it with suitable
safety stands.
• Mark the relationship of the wheel to the hub.
1. Wheel and tire assembly, refer to WHEELS AND
TIRES (Sec. 3E).
CAUTION: See " C aution" on page 5-1.
2. Position a C-clamp around the outer pad and cali­
per and tighten until the piston bottoms in its bore
(figure 36).
• C - clamp
3. Mounting bolts (1) (figure 37).
4. Caliper assembly.
• Suspend the caliper from the suspension
(figure 38).
Im portant
• Do not allow the brake components to hang
from the flexible hoses as damage to the
hoses may occur.
5. Inboard pad (6).
• Retainer spring (5).
6. Outboard pad (7).
7. Sleeves (2).
8. Bushings (3 and 4).
L*
Inspect
— The inside of the caliper assembly for signs of
fluid leakage, if found, refer to " Rebuilding the
Caliper" in this section.
— Mounting bolts and sleeves for corrosion. Do not
attempt to polish away corrosion, replace the
bolts.
+«- Install or Connect (Figure 35)
• Lubricate the sleeves and bushings with Delco
Silicone Lube or equivalent.
1. Bushings (3 and 4).
• Sleeves (2).
2. Retainer spring (5) onto the inboard pad (6).
• Inboard pad (6).
3 Outboard pad (7).
4. Caliper assembly.
2. Sleeves
3. Bushings
4. Bushings
5. Retainer Spring
6. Inboard Pad
7. Outboard Pad
Figure 35—Replacing Disc Brake
Linings (3000/3100 Models)
Im portant
• Make sure that the brake hose is not twisted
or kinked since damage to the hose could
result.
NOTICE: See " N otice" on page 5-1.
5. Mounting bolts (1) (Figure 37).
B-07829