TM 9-2320-289-20
Table 2-3. Mechanical Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
BRAKE SYSTEM
1.
BRAKES DRAG
Step 1.
Inspect brake lines and hoses. (See TB 9-2300-405-14)
Clear restrictions or replace if damaged or crimped. (See paragraphs 7-9
and 7-10)
Step 2.
Check for incorrect parking brake adjustment on rear brakes.
Adjust parking brake. (See paragraph 7-2)
Step 3.
Inspect brake shoes, brake pads, and all components for proper operation and
installation. (See paragraphs 7-7 and 7-11)
2. BRAKES PULL WHEN APPLIED
Step 1.
Step 2.
Step 3.
Step 4.
Step 5.
3. SENSITIVE
Step 1.
Check for incorrect tire pressure.
Inflate all tires to recommended pressure. (See TM 9-2320-289-10)
Inspect brake lines and hoses. (See TB 9-2300-405-14)
Clear restrictions or replace if damaged or crimped. (See paragraphs 7-9
and 7-10)
Inspect for loose calipers.
If calipers are loose, tighten bolts to specifications. (See paragraph 7-11)
Have assistant press brake pedal and check for movement of caliper piston.
If pistons are stuck or sluggish, replace caliper. (See paragraph 7-11)
Check front wheel toe alinement. (See paragraph 8-6)
BRAKING ACTION (M1009)
Check to ensure that the correct power booster has been installed (M1009 only).
(See paragraph 7-8)
If correct power booster is on truck and condition still exists, replace power
booster. (See paragraph 7-8)
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