TM-9-2330-267-14-P
TRAILER, TANK, WATER: 400 GALLON, 1-1/2 TON, 2 WHEEL M149, M149A1 AND M149A2
TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS)
JULY 1991
TM-9-2330-267-14-P - Page 70 of 354
TM 9-2330-267-14&P
Table 4-2. Organizational Troubleshooting (Con’t).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 3.
Check for poor or loose ground connections on trailer.
Clean and tighten ground connections.
BRAKES
7.
HANDBRAKES DRAG WHEN TRAILER IS MOVED.
Step 1.
Check for improperly adjusted handbrake levers.
Adjust handbrake levers (para 3-6).
Step 2.
Check for improperly installed or broken brakeshoe return springs.
Correctly install brakeshoe return springs or replace handbrake cable assembly as required
(para 4-32 or 4-31).
8.
HANDBRAKE WILL NOT HOLD WHEN APPLIED.
Step 1.
Check for improperly adjusted handbrake levers.
Adjust handbrake levers (para 3-6).
Step 2.
Check movement of handbrake cable assembly when handbrake is applied.
If no movement is observed, replace handbrake cable assembly (para 4-31 ).
9.
SERVICE BRAKES ARE WEAK.
Step 1.
Step 2.
Step 3.
Step 4.
Check for low brake fluid level at the master cylinder.
Add brake fluid (Item 3, Appendix E) (Chapter 3, Section l).
Check for air leaks in intervehicular air hoses (Table 2-1, 4c).
Bleed brakes (para 4-36).
NOTE
Remove parts needed to gain access to brakeshoe linings (para 4-32).
Check for worn brakeshoe linings.
Adjust service brakes (para 4-32).
Check for grease or water on brakeshoe linings.
Notify direct support maintenance to replace brakeshoe linings if coated with grease
4-20
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