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TM 9-2320-211-34-2-4
(4) Cycling test.
FRAME
1
B e sure control switch (1) is in OFF position. Flip HI-LO switch (2) to HI
1.
p o s i t i o n . Start heater (3) and let it run until it transfers to LO heat all by
itself.
W a i t a few minutes after heater (3) transfers to LO heat. Measure tempera-
2.
t u r e of coolant at outlet hose (4) by letting coolant run on thermometer.
WARNING
Coolant will be hot. U s e caution when working near hot
coolant. Severe burns could result.
T e m p e r a t u r e should be between 170F and 195F.
3.
L e t the blower motor stop.
F l i p control switch (1) to OFF position.
4.
I f temperature is not specified, get new restriction thermostat. Refer to
5.
p a r a 19-19c and e.
END OF TASK
19-103
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