7-4. SERVICE BRAKE CALIPER MAINTENANCE (Cont'd)
TM 9-2320-387-24-1
7-12
Change 1
b. Cleaning and Inspection
1.
Clean mating surfaces of caliper (3) and adapter (8) and lubricate with grease.
2.
Clean cooling fins of rotor (12).
3.
Inspect caliper (3) and caliper piston (4) for cracks, pitting, or damage. Replace caliper (3) if
cracked, pitted, or damaged.
4.
Inspect locating pin bearings and bushings (6) for tears or deterioration. Replace bearings and
bushings (6) if torn or deteriorated.
5.
Inspect dust boot (5) for tears or deterioration. Replace caliper (3) if dust boot (5) is torn or
deteriorated.
6.
Inspect yoke locating pins (10) for cracks or corrosion. Perform step 7 if cracked or corroded.
7.
Using 7-mm hex-head driver, remove locating pins (10) from yoke (9). Discard locating pins (10).
8.
Inspect rotor (12) for heat cracks, discoloration, pitting, or scoring. Replace rotor (12) if cracked,
pitted, or scored (para. 7-12).
9.
Clean output flange threaded holes (17) with a 10 mm tap to remove old scaling compound.
1.
Install copper washer (2) and coupling (1) on caliper (3).
NOTE
• Perform step 2 only if yoke locating pins were replaced.
• Perform steps 3 and 4 for right side. Perform steps 6 through 9
for left side.
2.
Apply sealing compound to threads of locating pins (10) and install locating pins (10) in yoke (9).
Tighten locating pins (10) to 25-35 lb-ft (34-47 N•m).
3.
Install caliper (3) on yoke (9).
4.
Connect hose (7) to coupling (11).
5.
DELETED
6.
Install caliper (3) on yoke (9).
7.
Position rotor (12) and caliper (3) on adapter (8) and hold rotor (12) with two capscrews (13).
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).
8.
Apply sealing compound to tapped holes of adapter (8). Using crowfoot, install yoke (9) and
caliper (3) on adapter (8) with two washers (15) and capscrews (16). Tighten two capscrews (16) to
30-40 lb-ft (41-54 N•m).
9.
Connect hose (7) to coupling (11).
c. Installation
7.
Remove coupling (1) and copper washer (2) from caliper (3). Discard copper washer (2).
