Mooney M20M - Oil Temperature; Transducer Test Procedures

MOONEY
AIRCRAFT
CORPORATION
M20M
SERVICE
AND
MAINTENANCE
MANUAL
79-30-02
OIL
TEMPERATURE
To
use
the
unit
for
troubleshooting,
the box is
The
oil
temperature
gauge
is
an
electric
unit
receiving
connected
to
the
aircraft
harness
in the
engine
its
signal
from
a
temperature
bulb in the
engine
case,
compartment,
by
disconnecting
the
appropriate
transducer
electrical connector
and
connecting
the the
located
between the
oil
cooler
and the
case.
The
probe
resistance
changes
as
the oil
temperature
test
hox
in
its
place.
changes
and
this varies
the
readout
on
the instrument.
Push
aircraft Master
Switch ON
(insure engine
gauge
circuit
breakers
are
in)
and
adjust
box
to
approximate
pressure
desired.
The
engine
gauge
should
read
this
7940-00
TRANSDUCER
TEST
approximate
pressure.
PROCEDURES
If
pressure
reading
is
correct:
CAUTION
1.
Verify
Oil
pressure
to
transducer
with mechanical
This unit
is
for
troubleshooting
only.
DO NOT
pressure
gauge.
ATTEMPT
TO CALIBRATE WITH
THIS
UNIT.
a.
If
correct--probable
failure
is transducer.
The
Transducer
Test
Box,
P/N
GSE
030036,
can
be
b.
If
incorrect-troubleshoot
oil
system.
used
to
simulate
fuel
and
oil
pressures
in
the
MooneyModel
M20M.
If
pressure
reads
incorrectly,
zero or
pegged
condition:
NOTE
1.
Sigma
Tek
gauge
-S/N
27-0001
thru 27-0257.
An
appropriate
wiring
adapter
must
be used
on
GSE 6301036
Transducer
Test Box
when Kulite
2.
Moritz
gauge
S/N
27-0258
thru
27-TEA.
or
Partriot
transducers
are
installed.
Contact
a.
Check
wiring
for
continunity
between
engine
MAC
Service
Parts
for
status
of
these
adapters.
compartment
connector
and cluster.
b.
If
wiring
is
correct--probable
failure is in
gauge
module
or
cluster.
4-99
7930-02
OLDWILLWAYNE