TM 9-2320-272-24-1
3-12. AIR CLEANER INDICATOR AND TUBE MAINTENANCE (Contd)
b. Removal
NOTE
Perform steps 1 through 7 for M939A2 series vehicles.
1.
Remove clamp (14) and air cleaner indicator tube (1) from connector (13).
2.
Remove connector (13) and filter (12) from air tube (11).
3.
Remove four screws (5) and plate (4) from instrument panel (10).
4.
Remove clamp (9) and indicator tube (1) from air cleaner indicator (6).
5.
Remove two locknuts (8), screws (7), and air cleaner indicator (6) from plate (4). Discard locknuts (8).
6.
Remove indicator tube (1) and grommet (2) from firewall (3).
7.
Remove grommet (2) from indicator tube (1).
NOTE
Perform steps 8 through 15 for M939 and M939A1 series vehicles.
8.
Remove four screws (26), plate (29), and air cleaner indicator (22) from instrument panel (25).
9.
Disconnect indicator tube nut (20) from elbow (21).
10.
Remove elbow (21) from adapter (30) and adapter (30) from air cleaner indicator (22).
11.
Remove two locknuts (31), screws (27), plate (29), and gasket (28) from air cleaner indicator (22).
Discard locknuts (31).
12.
Disconnect indicator tube nut (16) from elbow (15).
13.
Remove grommet (18) and indicator tube (17) from firewall (19).
14.
Remove grommet (18) from indicator tube (17).
15.
Remove elbow (15) and filter (24) from intake manifold (23).
c . Cleaning and Inspection
WARNING
Eyeshields must be worn when cleaning with compressed air.
Compressed air source will not exceed 30 psi (207 kPa). Failure to
do so may result in injury to personnel.
NOTE
Cleaning and inspection of air cleaner indicator, indicator tube,
and filter are basically the same for M939, M939A1, and M939A2
series vehicles. This cleaning and inspection procedure covers
M939A2 series vehicles.
1.
Clean air cleaner indicator tube (1) with compressed air.
2.
For general inspection instructions, refer to para. 2-15.
3.
Inspect indicator tube (1) and filter (12) for clogs, kinks, cracks, and breaks. Replace indicator tube (1)
and filter (12) if clogged, kinked, cracked, or broken.
4.
Inspect air cleaner indicator (6) for cracks. Replace air cleaner indicator (6) if cracked.
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