TM 9-2320-366-20-4
NOTE
There are two wires M1089 wrecker control
wiring harnesses.
Early production
harnesses had wires for terminal blocks
TB4A and TB6A.
Current production
harnesses do not. Perform steps (27) and
(28) on vehicles with early production
harness.
(27) Loosen nine screws (56) on bottom of terminal blocks
(57) labeled 4A, 6A, 7, 12, 14, 18, 19, and two terminal
blocks labeled 9.
(28) Remove wires 4A (58), 6A (59), 7 (60), 12 (61), 14 (62),
18 (63), 19 (64), and two wires 9 (65) from terminal
blocks (57) labeled 4A, 6A, 7, 12, 14, 18, 19 and two
terminal blocks labeled 9.
NOTE
Perform steps (29) and (30) on vehicles
equipped with current production harness.
(29) Loosen seven screws (56) on bottom of terminal blocks
(57) labeled 7, 12, 14, 18, 19 and two terminal blocks
labeled 9.
(30) Remove wires 7 (60), 12 (61), 14 (62), 18 (63), 19 (64)
and two wires 9 (65) from terminal blocks (57) labeled 7,
12, 14, 18, 19 and two terminal blocks labeled 9.
(31) Remove M1089 wrecker control panel wiring harness
(66) from vehicle.
b. Installation.
(1) Position M1089 wrecker control panel wiring harness (1)
on vehicle.
(2) Position wires 7 (2), 12 (3), 14 (4), 18 (5), 19 (6) and two
wires 9 (7) on terminal blocks (8) labeled 7, 12, 14, 18,
19 and two terminal blocks labeled 9.
(3) Tighten seven screws (9) on terminal blocks (8) labeled
7, 12, 14, 18, 19 and two terminal blocks labeled 9.
Change 1
