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

  TM-9-2320-272-23-4 - Page 589 of 1393

REMOVAL - Continued
5.
Remove 16 screws (Figure 2, Item 2) and top enclosure (Figure 2, Item 7) from bonnet
(Figure 2, Item 13) and air conditioner (Figure 2, Item 12).
6.
Remove 12 screws (Figure 2, Item 9) and right enclosure (Figure 2, Item 8) from bonnet
(Figure 2, Item 13) and air conditioner (Figure 2, Item 12).
7.
Remove four screws (Figure 2, Item 6), plate (Figure 2, Item 5), and bellows (Figure 2, Item 3) from left
enclosure (Figure 2, Item 1).
8.
Remove ten screws (Figure 2, Item 4) and left enclosure (Figure 2, Item 1) from bonnet (Figure 2, Item 13)
and air conditioner (Figure 2, Item 12).
9.
Remove cotter pin (Figure 2, Item 16) and door rod (Figure 2, Item 14) from swing arm (Figure 2, Item 15).
Discard cotter pin.
10.
Remove seven screws (Figure 2, Item 11) and bottom enclosure (Figure 2, Item 10) from bonnet
(Figure 2, Item 13) and air conditioner (Figure 2, Item 12).
11.
Disconnect power cable (Figure 2, Item 26) from air conditioner (Figure 2, Item 12).
12.
Remove screw (Figure 2, Item 28), ground cable (Figure 2, Item 29), and lockwasher (Figure 2, Item 27) from
air conditioner (Figure 2, Item 12). Discard lockwasher.
13.
Remove screw (Figure 2, Item 25), ground cable (Figure 2, Item 29), and lockwasher (Figure 2, Item 30) from
mounting plate (Figure 2, Item 20) and bonnet floor (Figure 2, Item 31). Discard lockwasher.
14.
Remove five screws (Figure 2, Item 24) from mounting plate (Figure 2, Item 20) and bonnet floor
(Figure 2, Item 31).
15.
Remove six screws (Figure 2, Item 23) from mounting plate (Figure 2, Item 19) and bonnet floor
(Figure 2, Item 31).
WARNING
All personnel must stand clear during lifting operations. A shifting or swinging load may cause
injury to personnel. Failure to comply may result in injury or death to personnel.
NOTE
Two assistants will help with Step (16).
16.
Attach chains (Figure 2, Item 18) to lifting device (Figure 2, Item 17) and four lifting brackets
(Figure 2, Item 22) on air conditioner (Figure 2, Item 12) and remove air conditioner from bonnet
(Figure 2, Item 13). Position air conditioner for access to bottom of unit.
17.
Remove six screws (Figure 2, Item 21) and mounting plates (Figure 2, Items 19 and 20) from air conditioner
(Figure 2, Item 12).
TM 9-2320-272-23-4
0652
0652-4


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