TM9-2330-207-14
Table 4-3. Organizational Troubleshooting Table - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. SLOW BRAKE APPLICATION OR RELEASE (cont).
Step 6. Check for leaking brake wheel cylinder (all models except M127).
If leaking, replace brake wheel cylinder (para 4-40a(4) ).
If brake wheel cylinder is not leaking, proceed to step 7.
Step 7. Check for defective or ineffective hydraulic master cylinder or air chamber (para. 4-39f).
Replace defective master cylinder (all models except Ml 27) or air chamber (para. 4-41 or 4-46).
If master cylinder or air chamber not defective, proceed to step 8.
Step 8. Visually check for broken or frozen camshaft follower roller (M 127 only).
If camshaft follower roller is broken or frozen, notify Direct Support maintenance.
4. GRABBING BRAKES.
Step 1. Check for moisture in emergency relay valve or reservoir (para. 4-39g).
cock for drainage of moisture from air reservoir.
If no moisture is present, proceed to step 2.
Step 2. Check brake adjustment (para. 4-39a).
If brakes are out of adjustment, adjust brakes (para. 4-39a).
If brakes are not out of adjustment, proceed to step 3,
Step 3. Check for grease on brake lining.
If grease is present, replace brake shoes (para. 4-40) and oil seals (para. 4-32).
If grease is not present, proceed to step 4.
Step 4. Check for loose or worn wheel bearings (para. 4-32),
If wheel bearings are loose, adjust bearings (para. 4-32).
If wheel bearings cannot be adjusted, replace bearings (para. 4-32).
If wheel bearings are not loose or worn, proceed to step 5.
Step 5. Check for cracked, scored, or deformed brake drum (para. 4-32),
If brake drum is cracked or deformed, replace drum (para. 4-32).
If brake drum is scored, notify Direct Support maintenance.
If brake drum is not defective, proceed to step 6.
Step 6. Check for loose or worn brake lining.
Replace brake shoes (para. 4-40).
If brake lining is not loose or worn, proceed to step 7.
Step 7. Visually check for broken or frozen camshaft follower roller (M 127 only).
If camshaft follower roller is broken or frozen, notify Direct Support maintenance.
If not defective, proceed to step 8.
