REFERENCE INFORMATION
0 II
. .
Keep hands and arms
away from fan blades
and serpentine belt when
engine is running or
serious injury may
result.
See page 2-163 for a
description of the fan
system operation and
to see if ifs
engaged or not.
See page 2-163 for a description of the fan
system operation and to see if it’s engaged or
not.
If you know the engine is cold and
the fan temperature switch is good,
you can reconnect 4500 to the
switch and see if the fan
disengages.
Replace the fan temperature switch
(para. 4-34).
You can also remove the switch to test it
hot and cold.
TM 9-2320-387-24-l
ENGINE COOLING
RESISTANCE AND CONTINUITY
04,500 OHMS
STEIICE-R TEST 91
1. Connect RED clip and BLACK clip to the
terminations indicated in the question.
RED to
the first, BLACK to the second.
2. Start Test 91,04,500
Ohms.
3. Displayed reading is in ohms. Less than
5 ohms is continuity.
If the resistance is over
4,560 ohms, STWICE-R displays .9.9.9.9.
*
CONTINUITY (RESISTANCE)
MULTIMETER
1. Set the voltmeter to an ohms scale of about
1.000 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).
L
2-l 71
