TM-9-2350-311-20-1

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS

AUGUST 1994

TM-9-2350-311-20-1 - Page 1100 of 1275

TM 9-2350-311-20-1

14-4 COOLANT PUMP

This task covers:

a. Removal

b. Installation

INITIAL SETUP

Tools

General mechanic’s tool kit (item 64, Appx H)

TM 9-2350-311-10

a. Removal

1 Disconnect electrical lead (1).

2 Loosen two hose clamps (2) on coolant inlet hose (3) and coolant outlet hose (4).

WARNING

Coolant is a hazardous waste and must be disposed of in accordance with local

procedures or direction of the local Hazardous Waste Management office.

NOTE

If plugs are not used, coolant system must be drained (TM 9-2350-311-10).

3 Disconnect hoses (3 and 4) from coolant pump (5). Install 5/8-in.- (16-mm-) diameter plugs in hoses.

4 Remove two nuts (6), two flat washers (7), two screws (8), and clamp bracket (9).

5 Remove three screws (10) and coolant pump (5).

14-7