TM 9-2320-272-24-4
5-81. CEILING AIR DUCTS REPLACEMENT
THIS TASK COVERS:
b. Installation
a. Removal
INITlAL SETUP:
APPLICABLE MODELS
REFERENCES (TM)
M934/A1/A2
TM 9-2320-272-10
TM 9-2320-272-24P
TOOLS
General mechanic's tool kit (Appendix E, Item 1)
EQUIPMENT CONDITION
l Parking brake set (TM 9-2320-272-10).
MATERIALS/PARTS
Van sides fully expanded and secured
l
Primer (Appendix C, Item 57)
(TM 9-2320-272-10).
l Ceiling rear cover removed (para. 5-80).
PERSONNEL REQUIRED
Ceiling filler and side panels removed (para. 5-79).
l
TWO
SPECIAL ENVIRONMENTAL CONDITIONS
Vehicle must be on a level surface.
1.
Remove
fifty-two screws (6) and two enclosures (7) from air ducts (3) and (5).
2.
Remove
fourteen screws (4) from air ducts (3) and (5) and support (1).
3.
Remove
forty-two screws (2) and air duct (3) from ceiling (9).
4.
Remove
eighteen screws (8) and air duct (5) from ceiling (9).
5.
Remove
nine screws (10) and support (1) from ceiling (9).
6.
Remove
fifty-two screws (20) and two enclosures (19) from air ducts (17) and (21).
7.
Remove
four screws (16) from air duct (17) and support (13).
8.
Remove
six screws (18) from air duct (21) and support (13).
9.
Remove
twenty-six screws (15) and air ducts (17) and (21) from ceiling (9).
10.
Remove
ten screws (14) and support (13) from ceiling (9).
11.
Remove
seven screws (12) and support (11) from ceiling (9).
b. Installation
NOTE
Insulate areas of dissimilar metal-to-metal contact with zinc
chromate primer.
1.
Install support (11) on ceiling (9) with seven screws (12).
2.
Install support (13) on ceiling (9) with ten screws (14).
Install air ducts (17) and (21) on ceiling (9) with twenty-six screws (15).
3.
4.
Install air duct (21) on support (13) with six screws (18).
Install air duct (17) on support (13) with four screws (16).
5.
Install two enclosures (19) on air ducts (21) and (17) with fifty-two screws (20).
6.
Position support (1) over bow of roof frame and install on ceiling (9) with nine screws (10).
7.
Install air duct (5) on ceiling (9) with eighteen screws (8).
8.
Install air duct (3) on ceiling (9) with forty-two screws (2).
9.
Install air ducts (3) and (5) on support (1) with fourteen screws (4).
10.
Install two enclosures (7) on air ducts (5) and (3) with fifty-two screws (6).
11.
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