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 1333 of 1393
INSTALLATION
1.
Install heater harness (Figure 2, Item 6) in cab (Figure 2, Item 18) with four tiedown straps
(Figure
2,
Item
1).
2.
Connect wire (Figure 2, Item 4) to pin A of battery switch (Figure 2, Item 3) and install wiring harness
(Figure
2,
Item
2) on cab (Figure 2, Item 18).
3.
Connect lead (Figure 2, Item 9) to lead (Figure 2, Item 12) of wiring harness (Figure 2, Item 2).
4.
Connect heater harness (Figure 2, Item 6) and lead (Figure 2, Item 8) to heater control box (Figure 2, Item 5)
and lead (Figure 2, Item 7).
5.
Connect leads (Figure 2, Items 10 and 29) to fuel pump (Figure 2, Item 32).
6.
Install three tiedown straps (Figure 2, Item 30) on fuel pump fuel lines (Figure 2, Item 31).
7.
Push lead (Figure 2, Item 10) through firewall (Figure 2, Item 24) into cab (Figure 2, Item 18) and connect leads
and (Figure 2, Item 21) to connector (Figure 2, Item 20) on cab.
8.
Install four tiedown straps (Figure 2, Item 11) on fuel pump lead (Figure 2, Item 10) and front harness
(Figure
2,
Item
13) on engine compartment firewall (Figure 2, Item 24).
9.
Install grommet (Figure 2, Item 23) on heater harness (Figure 2, Item 6) and firewall knockout
(Figure
2,
Item
17).
10.
Push harness connector (Figure 2, Item 22) into engine compartment through firewall knockout
(Figure
2,
Item
17) and connect heater harness connector to personnel heater (Figure
2,
Item
15).
11.
Install washer (Figure 2, Item 27), lockwasher (Figure 2, Item 26), ground wire (Figure 2, Item 19), screw
(Figure
2,
Item
25), washer (Figure 2, Item 27), and locknut (Figure 2, Item 28) on mounting bracket
(Figure
2,
Item
16) and angle bracket (Figure 2, Item 14).
TM 9-2320-272-23-4
0764
0764-4
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