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 511 of 1168
11-168. NBC PRECLEANER, PARTICULATE FILTER ASSEMBLY, AND BRACKET
REPLACEMENT
This task covers:
a. Removal
b. Installation
a. Removal
1.
Disconnect lead and connector (para. 4-101).
2.
Loosen two clamps (1) on precleaner and particulate filter assembly (7) and connectors (2).
3.
Remove latch (9) and arms (10) on precleaner and particulate filter assembly (7) from
bracket (6).
4.
Remove precleaner and particulate filter assembly (7) from connectors (2) and bracket (6).
NOTE
Perform step 5 for M997, M997A1, and M997A2 vehicles only.
5.
Remove four capscrews (5), lockwashers (4), and bracket (6) from body (3). Discard lockwashers (4).
NOTE
Perform step 6 for M996 and M996A1 vehicles only.
6.
Remove four nuts (11), lockwashers (12), capscrews (14), washers (13), and bracket (6) from floor
(15) of NBC compartment. Discard lockwashers (12).
7.
For shipping or decontamination purposes, slide clip (8) over intake holes in precleaner and
particulate filter assembly (7).
INITIAL SETUP:
Applicable Models
M996, M996A1, M997, M997A1, M997A2
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item1 )
Materials/Parts
Four lockwashers (Appendix G, Item 181)
Four lockwashers (Appendix G, Item 135)
Four lockwashers (Appendix G, Item 185)
Filter (Appendix G, Item 34)
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
NBC contaminated filters must be handled and
disposed of only by trained personnel.
WARNING
MNBC contaminated filters must be handled and disposed of only by auth-
orized 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
The procedures for replacing precleaner and particulate filter and filter
assembly and bracket are basically the same for M996, M996A1, M997,
M997A1, and M997A2 ambulances. This procedure covers precleaner and
particulate filter and bracket in M997, M997A1, and M997A2 ambulances.
The basic differences in M996 and M996A1 ambulance are:
–
The rigid PVC air line is replaced by flex tube and plastic clamps.
–
Bracket is mounted on the floor of the NBC compartment and is secured
by four capscrews, washers, lockwashers, and nuts.
TM 9-2320-280-20-3
11-248
Change 2
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