TM-9-2320-386-24-1-1

2-1/2-TON, 6X6, M44A3 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; EXTENDED SERVICE PROGRAM (ESP); UNIT, DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL; VOLUME 1 OF 2

MAY 2001

  TM-9-2320-386-24-1-1 - Page 982 of 1078

REMOVAL
WARNING
Do not disconnect air lines before draining air reservoirs. Small
parts under pressure may shoot out with high velocity, causing
injury to personnel.
Eyeshields must be worn when releasing compressed air. Failure
to do so may result in injury to personnel.
CAUTION
When disconnecting air lines and hoses, plug all openings to
prevent dirt from entering and causing damage to internal parts.
Remove plugs prior to installation.
NOTE
Tag air lines for installation.
1.
Disconnect two leads 75 (46) of air brake electrical harness (1) from pressure switch (45).
2.
Remove four tiedown straps (21) from air lines (2), (7), (9), (20), and (30). Discard tiedown
straps (21).
3.
Loosen nuts (3), (8), (29), and (37) and remove air lines (2), (7), (30), and (9), with inserts (44), (40),
(28), and (36), from elbows (43) and (38) and tee (35).
4.
Loosen nut (31) and remove air line (30), with insert (32), from elbow (33).
5.
Remove locknut (39), screw (41), and check valve (42) from crossmember (4). Discard locknut (39).
6.
Remove elbows (38) and (43) from check valve (42).
7.
Remove tee (35) from check valve (42).
8.
Remove two locknuts (6), washers (5), screws (34), and pressure switch (45) from crossmember (4).
Discard locknuts (6).
9.
Remove elbow (33) from pressure switch (45).
10.
Loosen nut (19) and remove air line (20), with insert (18), from elbow (16).
11.
Remove elbow (16) from check valve (17).
12.
Loosen nuts (10) and (14) and remove air lines (9) and (15), with inserts (11) and (13), from
union (12).
13.
Loosen nuts (22) and (26) and remove air lines (7) and (27), with inserts (23) and (25), from
union (24).
0275 00-2
TM 9-2320-386-24-1-1
0275 00
AIR BRAKE CHECK VALVE, PRESSURE SWITCH, AND AIR LINE REPLACEMENT (Contd)


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