TM 10-5410-228-10
3.12.5 NBC Filter Replacement - Continued.
b. Installation (Refer to Figure 3-8)
NBC filter weighs 30 pounds. To prevent injury to personnel, use proper lifting techniques
when handling NBC filter.
(1) Slide three new NBC filters (10) into three channels in ECU (11) so they each sit on the lower
frame and are aligned with the openings on the plenum (4). Note direction of flow arrow.
(2) Install plenum (4) on seven rods (5) and two rods (9).
(3) Secure plenum (4) to two rods (9) with two nuts (6), two new lockwashers (7) and two flat
washers (8).
(4) Secure plenum (4) to seven rods (5) with seven nuts (1), seven new lockwashers (2) and seven
flat washers (3).
Figure 3-8. NBC Filter Replacement
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