Specifications

TM 9-2330-384-14&P
Table 4-2. Unit Troubleshooting Procedures (Con't).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
BRAKES
5. BRAKES WILL NOT RELEASE
Step 1. Check brake adjustment (see paragraph 4-34).
Adjust brakes (see paragraph 4-34).
Step 2.
Remove wheel and drum assembly (see paragraph 4-46). Inspect brake shoe
assembly for damage (see paragraph 4-35).
If brake shoes are damaged, replace’ (see paragraph 4-35).
6.
BRAKES GRAB
Step 1.
Check brake adjustment (see paragraph 4-34).
Adjust brakes (see paragraph 4-34).
Step 2.
Check for damage to brake chamber (see paragraph 4-40).
If brake chamber is damaged, replace (see paragraph 4-40).
Step 3.
Check for leaking or broken air line between ratio relay valve and brake chamber
(see paragraph 4-39).
If air line is leaking or broken, replace (see paragraph 4-39).
Step 4. Remove wheel and drum assembly (see paragraph 4-46). Inspect brake shoe
assembly for wear or damage (see paragraph 4-35). Inspect linings for oil, grease,
or foreign material.
If brake shoe linings measure ¼ in. (6.35 mm) or less at their thinnest point, if
brake shoes are damaged, or if linings are oil or grease soaked, replace brake
shoes (see paragraph 4-35).
Step 5.
Notify direct support maintenance to check drum for out-of-round condition.
7. BRAKES DRAG
Step 1. Check brake adjustment (see paragraph 4-34).
Adjust brakes (see paragraph 4-34).
Step 2.
Remove wheel and drum assembly and inspect drum for damage (see paragraph
4-46). Inspect brake shoe assembly for damage (see paragraph 4-35).
If brake shoes are damaged, replace (see paragraph 4-35).
If drum is damaged, replace (see paragraph 4-46).
Step 3. Notify direct support maintenance to check drum for out-of-round condition.
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