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 TM 9-2320-366-20-1
CAUTION
Use care when testing electrical connectors.
Do not damage connector pins or sockets
with multimeter probes. Failure to comply
may result in damage to equipment.
NOTE
Inspect connector pins/sockets for damage,
corrosion, and serviceability. Check that
connector pins are not pushed back and
are capable of making good contact.
CONTINUITY TEST
(1) Set multimeter to ohms.
(2) Connect positive (+) probe of multimeter
to connector P901 pin 4.
(3) Raise cab (TM 9-2320-366-10-1).
(4) Disconnect connector clamp from engine
speed sensor connector.
(5) Disconnect connector P38 from engine
speed sensor connector.
(7) Connect negative (-) probe of multimeter
to connector P38 pin 1 and note reading on
multimeter.
(8) If continuity is not present, go to step 7 of
this task.
CONTINUITY TEST
(1) Set multimeter to ohms.
(2) Connect positive (+) probe of multimeter
to connector P38 socket 2.
(3) Connect negative (-) probe of multimeter to
ground and note reading on multimeter.
(4) If continuity is not present, go to step 10
of this task.
(5) If continuity is present, replace tachometer
(para 7-21).
(6) Connect connector P38 to engine speed
sensor connector.
(7) Connect connector clamp on engine speed
sensor connector.
(8) Lower cab (TM 9-2320-366-10-1).
(9) Connect connector P901 to tachometer
connector.
(10) Connect connector clamp on tachometer
connector.
(11) Position auxiliary panel on auxiliary
panel housing with six screws.
(12) Tighten six screws to 18 lb-in. (2 Nm).
Change 1
2-365
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