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 661 of 1275

TM 9-2350-311 -20-1

8-6 ENGINE COOLANT TEMPERATURE TRANSMlTTER AND PROTECTIVE COVER —

CONTINUED

a. Removal—Continued

3 Disconnect electrical connector (8) of wire 33A.

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

procedures or direction of the local Hazardous Waste Management office.

Coolant will drain through

transmitter immediately.

NOTE

opening when transmitter is removed. Install replacement

4 Unscrew engine coolant temperature transmitter (9) and remove.

b. Installation

WARNING

Ž Ensure engine and coolant system are cool enough to permit safe handling in

order to prevent burns. Hot coolant will cause severe burns.

• Ensure MASTER switch is OFF when working on electrical system to avoid

electrical shock and burns.

8-16

WARNIN G