TM-9-2320-280-20-3

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 3 OF 3

JANUARY 1996

TM-9-2320-280-20-3 - Page 706 of 1168

TM 9-2320-280-20-3

12-100

Change 2

b. Installation

12-68. SWINGFIRE HEATER HARNESS ASSEMBLY REPLACEMENT (Cont’d)

CAUTION

Use care when routing harness. Failure to do so will cause

damage to harness.

1.

Position harness assembly (5) on right hand cowl (16) along right hand frame rail and vent line.

2.

Guide harness assembly (5) through hole in battery box (17) and connect lead 81A (6) to circuit

breaker (20) inside battery box (17).

3.

Connect GND (4) to negative battery terminal (18) with nut (19).

4.

Connect GND (4) and lead 81G (8) to heater pump leads (12).

5.

Install harness assembly (5) under air horn bracket (13) with tiedown strap (14).

6.

Install harness assembly (5) across “A” beam (11) with three tiedown straps (10).

7.

Install grommet (3) to cowl (2).

8.

Guide harness assembly (5) through grommet (3).

9.

Connect lead 81A (6) to lead 81B (7).

10.

Connect GND (4) and lead 81G (8) to relay (1) with two screws (9).

8.

Deleted.

9.

Remove nut (19) from lead GND (4) and negative battery terminal (18) inside battery box (17).

10.

Disconnect GND (4) from negative battery terminal (18) and lead 81A (6) from circuit breaker (20).

11.

Guide harness assembly (5) out through hole in battery box (17) and remove harness assembly (5)

from vehicle.