TM-9-2320-280-20-3
TRUCK, UTILITY: M998 SERIES
TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 3 OF 3
JANUARY 1996
TM-9-2320-280-20-3 - Page 509 of 1168
11-167. NBC GAS FILTER AND BRACKET REPLACEMENT
This task covers:
a. Removal
b. Installation
a. Removal
1.
Loosen two clamps (1) on ends of gas filter (9) and connectors (2).
2.
Unhook two latches (8) from bracket (5) on gas filter (9).
3.
Remove gas filter (9) from connectors (2) and bracket (5).
NOTE
Perform step 4 for M997, M997A1, and M997A2 vehicles only.
4.
Remove four capscrews (7), lockwashers (6), bracket (5), and two spacers (4) from body (3). Discard
lockwashers (6).
Manual References
TM 9-2320-280-10
TM 9-2320-280-24P
FM 3-4
FM 3-5
Equipment Condition
NBC access door opened (TM 9-2320-280-10).
General Safety Instructions
If filter has been used in a nuclear, biological, or
chemical (NBC) environment, special precautions
must be taken.
WARNING
NBC contaminated filters must be handled and disposed of only
by authorized and trained personnel. The unit commander or
senior officer in charge of maintenance personnel must ensure
that prescribed protective clothing (FM 3-4) is used, and
prescribed safety measures and decontamination procedures (FM
3-5) are followed. The local unit SOP is responsible for final
disposal of contaminated air filters.
NOTE
• For instructions on replacement of rivets, refer to para. 10-66.
• The procedures for replacing the NBC gas filter and bracket are
basically the same for M996, M996A1, M997, M997A1, and
M997A2 ambulances. This procedure covers NBC filter and
bracket in M997, M997A1, and M997A2 ambulances. The basic
differences in M996 and M996A1 ambulances are:
– PVC air line is replaced by flex tube.
– Bracket is installed on NBC door and secured with four rivets
and eight washers.
• Note direction of gas filter air flow arrow for installation.
TM 9-2320-280-20-3
11-246
Change 2
INITIAL SETUP:
Applicable Models
M996, M996A1, M997, M997A1, M997A2
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Materials/Parts
Four lockwashers (Appendix G, Item 135)
Four blind rivets (Appendix G, Item 251)
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