TM 9-2320-280-20-2
4-96. CONTROL BOX ASSEMBLY REPLACEMENT (M997, M997A1, M997A2) (Cont’d)
11.
12.
13.
14.
15.
16.
17.
4-178
Remove two tiedown straps (14) and lead (12) from NBC harness (13). Discard tiedown straps (14).
Disconnect NBC harness leads 784A (5) and 784B (12) from heater leads (4).
Remove four capscrews (2) and washers (1) from NBC heater mounting plate (16) and body (15) and
pull mounting plate (16) away for access to two capscrews (8).
Remove two nuts (6), capscrews (8), and ground terminals (7) from NBC heaters (3).
Remove screw (9), clamp (10), NBC harness (13), and A/C control box (11) from body (15).
Push grommet (40) down through hole in control box (17) and remove NBC harness (13) from control
box (17).
Remove three screw-assembled lockwashers (19), washers (18), and control box
Discard screw-assembled lockwashers (19).
(17) from body (37).
