Removal. - TM-9-2320-279-20-10979

TM 9-2320-279-20-1

Electrical System Maintenance Instructions (Cont)

7-78.

WATER TEMPERATURE SENDING UNIT AND ALARMSTAT

REMOVAL/INSTALLATION (CONT).

Removal.

NOTE

Water temperature sending unit and alarmstat are removed and installed in same way.

Water temperature sending unit shown.

(1) Remove nut (1), lockwasher (2), washer (3), and wire (4), and insulator (5) from sending unit

(6).

(2) Remove sending unit (6) from thermostat housing (7).

b. Installation.

WARNING

Adhesives, solvents, and sealing compounds can burn easily, can give off harmful vapors,

and are harmful to skin and clothing. To avoid injury or death, keep away from open fire

and use in well-ventilated area. If adhesive, solvent, or sealing compound gets on skin or

clothing, wash immediately with soap and water.

(1) Coat threads of sending unit (6) with pipe thread sealing compound, leaving last two threads

bare.

(2) Install sending unit (6) in thermostat housing (7).

NOTE

Perform step (2.1) if installing alarmstat.

(2.1) Apply thread locking compound to alarmstat terminal (8).

(3) Install insulator (5), wire (4), washer (3), lockwasher (2), and nut (1) on sending unit (6) and

tighten to not more than 20 lb-in (2.26 NSm).

c. Follow-on Maintenance.

(1) Fill cooling system (para 6-2).

(2) Connect batteries (para 7-91).

(3) Start and warm up engine, check operation of water temperature sending unit and alarmstat,

and check for leaks (TM 9-2320-279-10).

(4) Shut off engine (TM 9-2320-279-10).

(5) Install engine side panel (TM 9-2320-279-10).

(6) Close engine cover (TM 9-2320-279-10).

END OF TASK

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