Cessna T188C - Page 300

MODEL 188 AND T188 SERIES SERVICE MANUAL
. 15-37.
TRANSMITTER
ADJUSTMENT.
WARNING
Using the
following
fuel transmitter
calibration
procedure
on
components
other
than the
originally
installed
(Stewart Warner)
components
will
result in a
faulty fuel quantity
reading.
15-37A. STEWART WARNER
GAGE TRANSMITTER
CALIBRATION. Chances
of transmitter calibration
changing
in normal
service is remote;
however, it
is possible that
float arm or
float arm stops
may become
bent
if transmitter is
removed from
cell. Transmitter
calibration
is obtained by
adjusting float
travel. Float
travel is limited by float arm stops.
WARNING
Use extreme
caution while
working with
electrical components
of the
fuel system.
The possibility
of
electrical
sparks around
an "empty"
fuel
cell creates
a hazardous
situation.
Before installing
transmitter,
attach electrical
wires
and place master
switch in "ON"
position. Allow
float
arm to rest against
lower float arm stop and
read indicator. The pointer
should be on E (empty) position.
Adjust the
float arm against
lower stop
so pointer indicator
is on E.
Raise float until
arm is against
upper
stop
and adjust
upper
stop to permit
indicator
pointer
to be on
F (full). Install
transmitter
in
accordance
with
paragraph 15-35.
15-37B. ROCHESTER
GAGE
TRANSMITTER.
Do not attempt
to adjust
float arm or stop.
No adjustment
is
allowed.
Table
1
NOTE
Select the
oil temperature
sending
unit part
number that
is used in
your aircraft
from the
left column and the temperature
from the column
headings. Read the
ohms
value under
the appropriate
temperature
column.
Part Number
Type
72OF
120'F
165°F
220°F
250OF
S1630-1
Oil Temp
46.4
S1630-3
Oil
Temp
620,0
52 4
S1630-4
Oil Temp
620.0
52 4
S1630-5
Oil Temp
192.0
S2335-1
Oil
Temp
990.0
34.0
Temporary
Revision 2 - Oct 3/94
15-12AB