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 68 of 354
TM 9-2330-267-14&P
Table 4-2. Organizational Troubleshooting (Con’t).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 3.
Loosen six retaining screws (5), remove door assembly (6), and check for broken or frayed
wires (7), broken lamps (8), and corrosion.
Replace lamp that does not light and damaged parts (para 4-24) or clean with rag (Item 18,
Appendix E) and cleaning compound (Item 5, Appendix E) as necessary.
Remove lamp that does not light and clean socket with rag (Item 18, Appendix E) and
cleaning compound (Item 6, Appendix E) as necessary.
If new lamp still does not light, go to step 4.
Step 4.
Step 5.
Set multimeter for voltage check. Place red
check for 24 volts.
If voltage is not present, go to step 5.
If voltage is present, install new lamp
Disconnect wire 484 (left side) or 483
(right side) (13), place red lead (9) in
wire, black lead to ground, and
check for 24 volts.
If no voltage is present, go to
step 6.
If voltage is present, connect
wiring and go to step 7.
lead (9) in lamp socket, black lead to ground, and
TA506998
4-18
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