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 234 of 1205

TM

9-2320-387-24-l

REFERENCE ItjFORMATlON

ENGINE COOLING

FAN =PERATlJRE

SWITCH

1

2

1:

c

1:

RESISTANCE

AND CONTINUITY

04,500

OHMS

STEilCE-R TEST 91

1. Connect RED clip and BLACK clip to the

teminations

indicated in the question. RED to

the first, BLACK to the second.

2. Start Test 91,0-4.500

Ohms.

3. Displayed reading is in ohms.

Less than 5

ohms is continuity.

If the resistance is over

4,500 ohms, STEXE-R

displays

.9.9.9.9.

Repair/replace

wires (para. 4-90).

CONTINUITY (RESISTANCE)

MULTIMETER

.

Set the voltmeter to an ohms scale of about

1,000 ohms.

!. Connect the RED and BLACK leads to the

connections

stated in the question.

). Be sure to read the correct scale. Less than

5 ohms indicates continuity.

For an open circ

the meter should peg full scale (needle all the

way to the left).

Repair/replace

wires (para. 4-80).

DC VOLTAGE O-45 VOLTS

STUICE-R

TEST 89 ’

1. Connect RED clip to the indicated test

point, BLACK clip to negative or ground.

2. Start Test 89. DC Volts.

3. Displayed

reading is in volts.

Repair/replace

wires (para. 4-80).

VOLTAGE

MULTIMETER

1.

Set the voltmeter to a DC volts scale of at

least 40 volts.

2. Connect the RED lead to positive and the

BLACK lead to negative.

3. Be sure to read the correct scale.

. VALVE

2-177