7-3. SERVICE BRAKE PAD MAINTENANCE (Cont’d)
TM 9-2320-387-24-1
7-8
Change 1
c. Installation
WARNING
Ensure brake pads are installed with linings facing rotor. Failure
to do this may cause injury to personnel or damage to equipment.
NOTE
Perform steps 1 and 2 for right side. Perform steps 3, 4, and 5 for
left side.
1.
Position two brake pads (4) on adapter (6).
NOTE
When installing yoke and caliper, use a C-clamp and a block of
wood to bottom out piston in caliper. If piston will not bottom out,
replace caliper (para. 7-4).
2.
Apply sealing compound to tapped holes of adapter (6). Using crowfoot, install yoke (7) and caliper (1)
on adapter (6) with clamp (8.1), two washers (8), and capscrews (9). Tighten capscrews (9) to
30-40 lb-ft (41-54 N•m).
3.
Install two brake pads (4) on adapter (6).
4.
Remove two capscrews (12) from rotor (5).
NOTE
• Ensure all six capscrews holes in the rotor align with holes in
output flange.
• New capscrews come with preapplied thread-locking compound,
however, still apply sealing compound to threads of new
capscrews. If old capscrews are to be used, mating threads
must be cleaned and sealing compound applied to threads of
capscrews.
• Two-piece lockwashers must be installed in sets of two with
serrated sawtooth threads facing each other.
5.
Apply sealing compound to six capscrews (12), and install halfshaft (10) on rotor (5) with six two-
piece lockwashers (11) and capscrews (12). Tighten capscrews (12) to 58 lb-ft (79 N•m).
b. Cleaning and Inspection
1.
Clean mating surfaces of caliper (1) and adapter (6) and lubricate with grease.
2.
Inspect caliper (1) and caliper piston (2) for cracks, pitting, or damage. Replace caliper (1) if
cracked, pitted, or damaged (para. 7-4).
3.
Inspect dust boot (3) for tears or deterioration. Replace caliper (1) if dust boot (3) is torn or
deteriorated (para. 7-4).
4.
Inspect rotor (5) for heat cracks, discoloration, pitting, scoring, or wear. Replace rotor (5) if
thickness of rotor (5) is less then 13/16 in. (20.7 mm), cracked, pitted, or scored (para. 7-12).
NOTE
• To ensure proper brake function, replace brake pads in pairs on
both sides of differential.
• Replace brake pads if thickness is less than 3/16 in. (4.8 mm)
and operation in wet and muddy conditions is expected.
5.
Inspect brake pads (4) for glazing, oil saturation, or wear. If glazed, oil saturated, or if brake pad
thickness is less than 1/8 in. (3.2 mm), replace both pads (4) and pads on opposite caliper.
6.
Clean output flange threaded holes (5.1) behind rotor (5) with a 10-mm tap to remove old sealing
compound.
