Transmitter/Fuel Gauge Tolerances - Piper CHEROKEE WARRIOR PA-28-151 1995 Maintenance Manual

PIPER CHEROKEE WARRIOR SERVICE MANUAL
5. Connect external power supply unit. Connect the red (positive) lead to the starter solenoid
heavy terminal which is not connected to the starter.
6 Adjust power supply unit to provide 13.5 to 14.5 Vdc. Allow gauges to warm-up for a
m i n imum of three minutes.
Connect a wire to the sender side of each gauge. To read gauge
ground wire momentarily to airframe through a 200
tor at the 0 and 5 gallon positions; through a 35
the 10 through 20 gallon positions; no resistor at the full (25
gallon) position.
Place one U. S. gallon of fuel in each tank. Momentarily ground wire through a 200 Ω resistor
7
to airframe.
8. After needle on each gauge descends to a stable reading (:15 seconds minimum), observe fuel
quantity gauge. It should read empty. (Refer to chart 2802 for tolerances permitted between fuel gauge reading
and actual fuel in tank.)
9 . Add fuel to tank in five U.S. gallon increments until tank is full. Ground wire through
a p p r opriate resistor to airframe. Check gauge readings.
To obtain specified tolerances, adjust float assembly per
instructions given in Paragraph 9-15, .
TABLE IX-I. TRANSMITTER/FUEL GAUGE TOLERANCES
Actual Fuel in
Tank (U.S. Gal)
Full
20
15
10
b . To check PA-28-151 and P28-161, Warrior II with Stewart Warner or Rochester fuel quantity
t r a n smitter unit and gauges:
Rochester sending units are not compatible with A. C .
Sparkplug or Stewart Warner gauges. Rochester gauges must
be used with Rochester sending units
1. Pre-installation check:
Added: February 28, 1995
— NOTE —
NOTE
MAIN TANK
5
0
CAUTION
2A18
Island Enterprises
resis -
resistor at
Gauge Reading
(U.S. Gal)
22 to Full*
17 to 24
12 to 17
7 to 12
2 to 6
0 to -2
*Plus one needle width
FUEL SYSTEM