Hummer H1 (2006+). Manual - part 236
7-26
Brake System
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Figure 7-22: Rear Dual Brake Components
CAUTION: The caliper must be supported during removal to prevent damage to the brake line.
6.
Remove the two capscrews, washers, yoke, and caliper from the adapter.
7.
Slide the yoke and the caliper guide pins out from the caliper.
Cleaning and Inspection
NOTE: Clean all the components, examine for wear or damage, and replace if necessary.
1.
Clean the mating surfaces of the caliper, adapter, guide pins and the sleeves (Figure 7-19).
2.
Inspect the caliper and the caliper piston face for pitting or damage (Figure 7-24).
3.
Inspect the caliper cable bracket for looseness, damage, and for rotation
4.
Inspect the piston dust boot and the bushing for tears or deterioration.
5.
Clean the cooling fins of the rotor (Figure 7-22).
6.
Inspect the rotor for heat checks, discoloration, pitting, or damage.
7.
Inspect the yoke and the caliper guide pins for corrosion. Perform step 8 if corroded, if not, perform step 9.
8.
Remove the caliper guide pins from the yoke. Discard the caliper guide pins.
9.
Inspect the brake pads for glazing, oil saturation, or wear. If glazed, oil saturated, or if the brake lining thickness is less than 1/
8 in. (3.2 mm), replace both of the pads and the pads on opposite caliper.
CAUTION: Ensure that grease and oil are not in contact with rotor and/or the brake pad friction surfaces. Failure to do so will
result in damage to the equipment and poor performance.
ADAPTER
ROTOR
YOKE
CALIPER
CALIPER
COUPLING
BUSHING
PLASTIC
GUIDE PIN
MOUNTING
SLIDE
SURFACES
SLEEVE
BRAKE
LINE/HOSE
COPPER
WASHER