TM-9-2320-386-24-1-1

2-1/2-TON, 6X6, M44A3 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; EXTENDED SERVICE PROGRAM (ESP); UNIT, DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL; VOLUME 1 OF 2

MAY 2001

TM-9-2320-386-24-1-1 - Page 925 of 1078

REMOVAL

NOTE

Prior to removal, close fuel shutoff, engine oil, and water manifold

valves.

Have drainage container ready to catch coolant.

1.

Disconnect harness (3) from heater (4).

2.

Disconnect fuel line (1) from elbow (14).

3.

Remove clamp (13) and hose (12) from elbow (11).

4.

Remove cotter pin (10) and elbow (8) from heater (4). Discard cotter pin (10).

5.

Remove clamp (6) and hose (5) from elbow (7).

6.

Remove two clamps (9) and heater (4) from saddle brackets (2).

INSTALLATION

1.

Install heater (4) on two saddle brackets (2) with clamps (9).

2.

Install hose (5) on elbow (7) with clamp (6).

3.

Install elbow (8) on heater (4) with new cotter pin (10).

4.

Install hose (12) on elbow (11) with clamp (13).

5.

Connect fuel line (1) to elbow (14).

6.

Connect harness (3) to heater (4).

7.

Connect battery ground cable (WP 0121 00).

0253 00-2

TM 9-2320-386-24-1-1

0253 00

ENGINE COOLANT HEATER REPLACEMENT (Contd)