TM-9-2320-361-20
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
TECHNICAL MANUAL; UNIT MAINTENANCE
OCTOBER 1991
TM-9-2320-361-20 - Page 457 of 1207
TM 9-2320-361-20
4-30.
HORN BUTTON REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
APPLICABLE MODELS
REFERENCES (TM)
All
TM 9-2320-361-10
MATERIALS/PARTS
TM 9-2320-361-20P
O-ring
EQUIPMENT CONDITION
Safety wire (Appendix C, Item 22)
Parking brake set (TM 9-2320-361-10).
Battery ground cable disconnected (para. 4-48).
a. Removal
1. Remove three screws (4) and lift horn button adapter (3) from top of steering wheel (1). Disconnect
horn button connector (7) from wire connector (10).
2. Remove spring (9) and seal (2).
3. Remove retaining ring (6), horn button (5), and O-ring (8) from adapter (3). Discard O-ring (8).
NOTE
Perform steps 4 through 8 only if horn wire is damaged.
4. Disconnect plug (16) from connector (15) and slide shell (14) back on horn wire (12).
5. Remove slotted washer (18) from behind connector (15) and slide shell (14) off end of wire (12).
6. Remove rubber bushing (13) from steering gearbox (19) and slide offend of wire (12).
NOTE
Safety wire must be long enough to reach from other end of steering
column plus two additional feet.
7. Attach safety wire (17) to horn wire (12).
NOTE
Safety wire must be left inside steering column. It will be used to
pull new horn wire through steering column.
8. Pull horn wire (12) through steering column (11). Leave safety wire (17) in steering column (11).
b. Installation
1.
2.
3.
4.
5.
6.
7.
8.
4-46
NOTE
If horn wire has not been removed, proceed to step 6.
Pull horn wire (12) through steering column (11). Make sure horn wire (12) is taut between steering
column (11) and connector (15). Discard safety wire (17).
Install rubber bushing (13) on horn wire (12) and into hole in steering gearbox (19).
Move shell (14) upward on wire (12) and install slotted washer (18) behind connector (15). Slide
shell (14) over slotted washer (18).
Connect plug (16) to connector (15).
Install spring (9) and seal (2) in steering column (11).
Install retaining ring (6), horn button (5), and new O-ring (8) in adapter (3).
Connect wire connector (10) to horn button connector (7).
Install horn adapter (3) in steering column (11) and steering wheel (1) with three screws (4).
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