TM-9-2320-387-24-1

TRUCK, UTILITY: S250 SHELTER CARRIER, 4X4, M1113

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE, VOLUME 1

DECEMBER 1997

CHANGE 1

TM-9-2320-387-24-1 - Page 238 of 1205

TM

9-2320-387-24-l

REFERENCE lNFOf?MAllON

When checking coil resistance, use an analog-

type multimeter.

For an accurate ohms reading, perform this

check when the system is at room

temperature.

Heat will increase resistance,

resulting in a higher ohms reading.

Replace control valve (para. 8-25).

CONTROL

ENGINE COOLING

CONTINUITY

(RESISTANCE)

MULTIMETER

1. Bet the vottmeter to an ohms scale of about

1 .OW ohms.

2. Connect the RED and BLACK leads to the

connections

stated in the question.

3. Be sure to read the correct scale.

Less than 5

ohms indicates continuity.

For an open circuit,

the meter should peg full scale

(needle all the

way to the left).

CONTROL

VALVE

ELECTRICAL

CONNECTOR

I

VALVE

u-

NO STEP

ELECTRICAL

CONNECTOR

2-181