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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.
WIRE NO. 1005 VOLTAGE
TEST
(1)
Turn ENGINE switch to ON position.
(2)
Press and hold brake pedal with aid of
assistant.
(3)
Place positive (+) probe of multimeter
on wire no. 1005 at STOP LIGHTS
relay.
(4)
Place negative (-) probe of multimeter
on ground and look for 10-14 volts on
multimeter.
(5)
Release brake pedal.
(6)
Turn ENGINE switch to OFF position.
WIRE NO. 1189 VOLTAGE TEST
(1)
Turn ENGINE switch to ON position.
(2)
Press and hold brake pedal with aid of
assistant.
(3)
Place positive (+) probe of multimeter
on wire no. 1189 at STOP LIGHTS
relay.
(4)
Place negative (-) probe of multimeter
on ground and look for 10-14 volts on
multimeter.
(5)
Release brake pedal.
(6)
Turn ENGINE switch to OFF position.
Check ground wire no. 1435 from STOP
LIGHTS relay for loose connections or
damage.
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.
NOTE
A reading of infinity indicates an open
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 2-581
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