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TM 9-2320-360-20-1
WARNING
Jewelry can catch on
equipment and cause
injury or short across
electrical
circuit
and
cause severe burns or
electrical
shock.
Remove
rings,
bracelets,
watches,
necklaces,
and
any
other
jewelry
before
working
around
HET
Tractor.
Check ground wire no. 1435 (black) from
dome light for loss connections or damage.
WIRE NO. 1189 VOLTAGE
TEST
(1)
Turn ENGINE switch to ON
position.
(2)
Place positive (+) probe of
multimeter on wire no. 1189 at
dome light switch.
(3)
Place negative (-) probe of
multimeter on ground and look
for 10-14 volts on multimeter.
(4)
Turn ENGINE switch to OFF
position.
DOME LIGHT SWITCH TEST
(1)
Turn ENGINE switch to ON position.
(2)
Place dome light switch in the on
position.
(3)
Place positive (+) probe of multimeter on
wire no. 1153 at dome light switch.
(4)
Place negative (-) probe of multimeter
on ground and look for 10-14 volts on
multimeter.
(5)
Place dome light switch in the off
position.
(6)
Turn ENGINE switch to OFF position.
CONTINUITY TEST
CAUTION
Electrical power must be disconnected
from circuit before continuity can be
checked. Failure to comply may result in
damage to test equipment or electrical
system.
(1)
Disconnect wiring from components at each end of
wire.
(2)
Set multimeter to ohms position.
Check ground wire no. 1435 (black) from
dome light for loose connections or damage.
circuit.
(3)
Connect multimeter leads to each end of wire and
check multimeter for continuity.
NOTE
Any reading besides infinity indicates a
grounded wire.
(4)
Remove multimeter lead from one end of wire and
connect to chassis ground.
Change 2 2-597
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