a. Removal
CAUTION
b. Installation
TM 9-2320-280-20-3
12-32. ARCTIC HEATER PUMP-TO-BULKHEAD FUEL SUPPLY LINE REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Tools
Manual References
General mechanic’s tool kit:
TM 9-2320-280-10
automotive (Appendix B, Item 1)
TM 9-2320-280-24P
Materials/Parts
General Safety Instructions
Sealing compound (Appendix C, Item 44)
Do not perform this procedure near fire, flames,
or sparks.
WARNING
Diesel fuel is highly flammable. Do not perform this procedure
near fire, flames, or sparks. Severe injury or death will result.
Cover or plug all open hoses and connections immediately after
disconnection to prevent contamination. Remove all covers or
plugs prior to connection.
NOTE
Have drainage container ready to catch fuel.
1. Disconnect pump-to-bulkhead fuel supply line (2) from connector (1).
2. Remove pump-to-bulkhead fuel supply line (2) from bulkhead coupling elbow (3).
NOTE
Perform steps 3 and 4 for M996, M996A1, M997, M997A1,
M997A2, M998, M998A1, M1038, and M1038A1 models only.
3. Disconnect rear pump-to-bulkhead fuel supply line (5) from connector (4).
4. Remove rear pump-to-bulkhead fuel supply line (5) from rear bulkhead coupling elbow (6).
5. Inspect connectors (1) and (4) and bulkhead coupling elbows (3) and (6) for damaged threads or
cracks. Replace if cracked or damaged.
NOTE
Perform steps 1 and 2 for M996, M996A1, M997, M997A1,
M997A2, M998, M998A1, M1038 and M1038A1 models only.
1. Apply sealing compound to threads of connector (4) and install rear pump-to-bulkhead fuel supply
line (5) on connector (4).
2. Apply sealing compound to threads of rear bulkhead coupling elbow (6) and connect rear pump-to-
bulkhead fuel supply line (5) to rear bulkhead coupling elbow (6).
3. Apply sealing compound to threads of connector (1) and install pump-to-bulkhead fuel supply line (2)
on connector (1).
4. Apply sealing compound to threads of bulkhead Coupling elbow (3) and connect pump-to-bulkhead
fuel supply line (2) to bulkhead coupling elbow (3).
12-46
