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TM 10-3930-669-20
WARNING
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry contacts battery terminal, a
direct short may result in instant heating of tools, damage to equipment, and injury or death to
personnel.
VOLTAGE TEST
(1)
Disconnect connector from suspect
fan connector.
(2)
Set multimeter select switch to
VOLTS DC.
(3)
Connect positive (+) multimeter lead
to wire 36.
(4)
Connect negative (-) multimeter lead
to a known good ground.
(5)
Set MAIN POWER switch to ON
position (TM 10-3930-669-10).
(6)
Set engine switch to ignition position
(TM 10-3930-669-10).
(a)
If there are not 22 to 24 vdc
present, perform Steps (7) and (8)
below and replace wire 36 (See
Schematic Appendix F).
(b)
If there are 22 to 24 vdc present,
replace fan assembly (Para 16-7).
(7)
Set engine switch to off position.
(8)
Set MAIN POWER switch to OFF
position.
(9)
Connect connector to suspect fan
connector.
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