TM 9-2320-272-24-2
3-448. ENGINE EXHAUST BRAKE MODIFICATION KIT (M939A2) REPLACEMENT (Contd)
Remove hose (5) from connector (8).
19.
Loosen two nuts (2) and remove air horn supply tube (3) from elbow (1) and tee (4).
20.
Remove two nuts (24), lockwashers (25), screws (9), and horn assembly (10) from support
21.
brackets (12). Discard lockwashers (25).
Remove elbows (1) and (29) and tee (28) from horn assembly (10).
22.
Remove nut (20), lockwasher (19), screw (15), lockwasher (16), valve assembly ground wire (14), and
23.
harness ground wire (13) from bracket (18) and support bracket (12). Discard lockwashers (19)
and (16).
Remove nut (26), lockwasher (27), screw (17), and bracket (18) from support bracket (12) and horn
24.
support bracket (21). Discard lockwasher (27).
Remove two screws (35), lockwashers (34), and bracket (18) from valve assembly (32). Discard
25.
lockwashers (34).
Remove elbows (33) and (36) from valve assembly (32).
26.
Remove connector (8), elbow (31), and tee (30) from valve assembly (32).
27.
Remove nut (22), lockwasher (23), screw (11), and support bracket (12) from horn support
28.
bracket (21). Discard lockwasher (23).
Loosen clamp (6) and remove hose (5) from tube (7).
29.
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