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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. 1120 TEST
NOTE
Air system pressure must be below
65 psi (448 kPa) to perform test.
(1)
Drain air system (TM 9-2320-360-10)
until AIR PRESS gage reads less than
65 psi (448 kPa) if necessary.
(2)
Turn ENGINE switch to ON position.
(3)
Remove wire no 1120 from low air
pressure switches
(4)
Place wire no. 1120 on ground and
see it LOW AIR indicator and low air
buzzer operate
(5)
Turn ENGINE switch to OFF position.
(6)
Install wire no. 1120 on low air
switches
WIRE NO. 1276 VOLTAGE
TEST
NOTE
Air system pressure must be below
65 psi (448 kPa) to perform test.
(1)
Drain air system (TM 9-2320-360-10)
until AIR PRESS gage reads less than
65 psi (448 kPa) if necessary.
(2)
Turn ENGINE switch to ON position.
(3)
Place positive (+) probe of multimeter
on wire no. 1276 at LOW AIR
indicator.
(4)
Place negative (-) probe of multimeter
on ground and look for 10-14 volts on
multimeter.
(5)
Place positive (+) probe of multimeter
on wire no. 1276 at low air buzzer and
note reading on multimeter.
(6)
Turn ENGINE switch to OFF position.
Change 2 2-515
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