TM 9-2320-362-14&P
3-20. HARNESS ASSEMBLY 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,
Equipment Condition
Appendix B)
Tach/hourmeter box removed
Materials/Parts
(para 3-17a)
Seven lockwashers P/N MS35338-137
NOTE
Tag leads for installation.
a. Removal
1.
Remove seven screws (3), lockwashers (2), and washers (1) from
tach/hourmeter box cover (4).
Discard lockwashers (2).
2.
Remove tach/hourmeter box cover (4) and gasket (21) from tach/
hourmeter box (20).
3.
Disconnect leads (7) and (8) from hourmeter (13).
Disconnect
leads (12), (10), and (11) from tachometer (19).
4.
Remove nut (17) from connector 12J1 (9) and nut (18) from connector
12J2 (6).
Remove harness assembly (5) from tach/hourmeter
box (20).
b. Installation
1.
Install connector 12J1 (9) to tach/hourmeter box (20) and secure with
nut (17).
Install connector 12J2 (6) to tach/hourmeter box (20) and
secure with nut (18).
2.
Connect leads (7) and (8) to hourmeter (13).
3.
Connect leads to tachometer (19) as follows:
a. Red lead (10) to connector (16),
b. Black lead (11) to connector (15),
c. Yellow lead (12) to connector (14).
4.
Install gasket (21) and tach/hourmeter box cover (4) on tach/
hourmeter box (20) and secure with seven washers (l),
lockwashers (2), and screws (3).
3-38
