TM 9-2320-362-14&P
3-17. TACH/HOURMETER BOX REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Tools
Manual Reference
General mechanic’s tool kit:
TM 9-2320-280-10
automotive (Item 1, Section III,
TM 9-2320-280-20
Appendix B)
Equipment Condition
Materials/Parts
Battery ground cable disconnected
Two locknuts P/N MS21044C3
(TM 9-2320-280-20)
1.
Disconnect cable assembly W64 (9) from connector 12J1 (8).
2.
Unlatch two flexible latches (14) from keepers (12) on engine
access cover holddown brackets (11).
3.
Unlatch two engine access cover holddown latches (13) from engine
access cover holddown strikes (16).
4.
Turn two ring studs (10) and pull engine access cover (5) out
until end of safety lanyard (1) is reached.
5.
Disconnect cable assembly W66 (15) from connector on back of tach/
hourmeter box (6).
6.
Unhook safety lanyard (1) from safety tab (17).
7.
Remove locknuts (2), washer (3), washer (4), safety lanyard (l),
tach/hourmeter box (6) and tach/hourmeter seal (7) from engine access
cover (5).
Discard locknuts (2).
b. Installation
1.
Install tach/hourmeter seal (7), tach/hourmeter
lanyard (1) to engine access cover (5). Secure
washer (3) and locknuts (2).
2.
Hook safety lanyard (1) onto safety tab (17).
3.
Connect cable assembly W66 (15) to connector on
box (6).
4.
Install engine access cover (5) and secure with
5.
Secure two engine access cover holddown latches
cover holddown strikes (16).
box (6), and safety
with washer (4),
back of tach/hourmeter
two ring studs (10).
(13) to engine access
6.
Secure two flexible latches (14) to keepers (12) on engine access
cover holddown brackets (11).
7.
Connect cable assembly W64 (9) to connector 12J1 (8).
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