TM 5-5420-202-20-4
HEATER FUEL PUMP REPLACEMENT (Sheet 1 of 3)
Ratchet with 1/2 in. drive
TOOLS: 9/16 in. combination box and open end wrench
5 in. extension with 1/2 in. drive
5/8 in. combination box and open end wrench
8 in. adjustable wrench
7/16 in. socket with 1/2 in. drive
7/16 in. combination box and open end wrench
Plastic plugs
SUPPLIES:
Container
REFERENCE:
PRELIMINARY PROCEDURE: Turn HEATER MASTER switch to OFF (TM 5-5420-202-10)
REMOVAL:
Pull electrical plug (A) from harness
1.
connector (B).
Using 5/8 inch open end wrench, loosen
2.
tube nut (C).
Disconnect tube nut (C) from elbow
3.
(D).
Catch any excess fuel in container.
4.
Using 9/16 inch open end wrench, loosen
5.
hose nut (E).
6. Disconnect hose nut (E) from pump (F).
Plug both fuel lines (C) and (E).
7.
TA248622
Go on to Sheet 2