TM-9-2320-272-23-4
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 4 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-4 - Page 445 of 1393
REMOVAL
1.
Remove eight screws (Figure 1, Item 25), exhaust pipe (Figure 1, Item 26), and two clamps
(Figure
1,
Item
22) from van body (Figure 1, Item 1) and heater exhaust pipe (Figure 1, Item 19).
2.
Remove two screws (Figure 1, Item 21), lockwashers (Figure 1, Item 23), nuts (Figure 1, Item 24), and clamps
(Figure 1, Item 22) from exhaust pipe (Figure 1, Item 26). Discard lockwashers.
NOTE
Tag all leads and lines for installation.
3.
Remove nut (Figure 1, Item 8) and fuel overflow line (Figure 1, Item 12) from fitting (Figure 1, Item 7).
4.
Remove nut (Figure 1, Item 13) and fuel receptacle line (Figure 1, Item 14) from heater fuel valve
(Figure
1,
Item
6).
5.
Disconnect power receptacle connector (Figure 1, Item 17) from heater (Figure 1, Item 2).
6.
Disconnect external fuel pump receptacle connector (Figure 1, Item 15) from heater (Figure 1, Item 2).
7.
Disconnect room thermostat connector (Figure 1, Item 16) from heater (Figure 1, Item 2).
8.
Remove four screws (Figure 1, Item 3) and lockwashers (Figure 1, Item 4) from heater bracket
(Figure
1,
Item
5). Discard lockwashers.
9.
Remove screw (Figure 1, Item 11), ground strap (Figure 1, Item 10), and lockwasher (Figure 1, Item 9) from
bracket (Figure 1, Item 5) and heater (Figure 1, Item 2). Discard lockwasher.
NOTE
Assistant will help with Step (10).
10.
Remove heater (Figure 1, Item 2) from van body (Figure 1, Item 1).
11.
Remove five screws (Figure 1, Item 11) and lockwashers (Figure 1, Item 9) from two brackets
(Figure
1,
Item
5) and heater (Figure 1, Item 2). Discard lockwashers.
12.
Remove heater exhaust pipe (Figure 1, Item 19) from heater (Figure 1, Item 2).
13.
Remove four screws (Figure 1, Items 27 and 20) and two seals (Figure 1, Item 18) from van body
(Figure
1,
Item
1).
TM 9-2320-272-23-4
0631
0631-2
Back to Top
