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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.
GROUND CIRCUIT CONTINUITY TEST
(1)
Disconnect cab wire harness MC31 connector
from controller.
(2)
Place positive (+) probe of multimeter in MC31
connector, position 8
(3)
Place negative (-) probe of multimeter on known
good ground and multimeter for continuity.
(4)
Connect cab wire harness MC31 to controller
CTIS CONTROLLER VOLTAGE TEST
(1)
Remove CTIS wire harness connector from CTIS
Controller
(2)
Turn engine switch to ON position (TM 9-2320-360-10)
(3)
Move CTIS switch to ON position (TM 9-2320-360-10)
CAUTION
Probe only terminals indicated in step (4)
Failure to comply may result in damage to
CTIS components, wiring or test
equipment
(4)
Place positive (+) probe of multimeter on position 10 of
CTIS controller.
(5)
Place negative (-) probe of multimeter on known good
ground and look for 22-28 volts on multimeter.
(6)
Move CTIS switch to OFF position (TM 9-2320-360--10).
(7)
Turn engine switch to OFF position (TM 9-2320-360-10).
(8)
Install CTIS wire harness connector on CTIS controller.
CTIS WIRE HARNESS CONTINUITY TEST
(1)
Disconnect CTIS wire harness connector from power
manifold
(2)
Disconnect CTIS wire harness connector from controller
NOTE
Pay special attention to positions 1, 9, &
10
(3)
Place positive (+) probe of multimeter on position 1 of
connector at controller end
(4)
Place negative (-) probe of multimeter on position 1 of
connector at power manifold end and check multimeter for
continuity.
(5)
Repeat steps (3) and (4) for remaining positions 2 thru 10.
(6)
Install CTIS wire harness connectors back on power
manifold and controller.
Change 1 2-829
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