TM 9-2320-260-20
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8-22. AIR COUPLINGS REPLACEMENT (Contd)
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e. Rear Air Couplings Removal (except M813, M813A1, M815, M819)
1. Remove dummy coupling (9) and chain (10) from air coupling (11) and bracket ( 14).
2. Remove air coupling (11) from nipple (12).
3. Disconnect air line (1) from adapter (2).
4. Remove adapter (2), nut (3), and lockwasher (4) from adapter (21). Discard lockwasher (4).
5. Remove two locknuts (16), washers (15), screws (5), plate (6), and bracket (14) from frame (7).
Discard locknuts (16).
6. Remove nipple (12), elbow (17), adapter (21), elbow (20), and nipple (19) from valve (18).
7. Remove two screws (8) and identification plate (13) from bracket (14).
f. Rear Air Couplings Installation (except M813, M813A1, M815, M819)
NOTE
Fittings must be cleaned and inspected for cracks and stripped
threads.
1.
Apply antiseize tape to male threads of adapters (2) and (21), nipples (19) and (12), and elbows (20)
and (17).
2.
Install identification plate (13) on bracket ( 14) with two screws (8).
3.
Install plate (6) and bracket (14) on frame (7) with two screws (5), washers (15), and new
locknuts (16).
4.
Install nipple (19), elbow (20), adapter (21), and elbow (17) on valve (18).
Install adapter (21) on bracket (6) with new lockwasher (4) and nut (3).
5.
Install adapter (2) on adapter (21).
6.
7.
Connect air line (1) to adapter (2).
8.
Insert nipple (12) through bracket (14) and install on elbow (17).
Install air coupling (11) on nipple (12).
9.
10.
Install dummy coupling (9) and chain (10) on air coupling (11) and bracket (14).
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