9-11. FUEL QUANTITY TRANSMITTER UNIT.
9-12. REMOVAL OF FUEL QUANTITY TRANSMITTER UNIT.
a. Remove the fuel tank. (Refer to Paragraph 9-5.)
b. Disconnect the transmitter wire from the connection post.
c. Cut the safety wire which secures the five attaching screws.
d. Remove the five screws and remove the unit.
9-13. INSTALLATION OF FUEL QUANTITY TRANSMITTER UNIT.
a. Position the transmitter and gasket on the fuel tank and secure with machine screws and washers.
(Tip tank installation, install ground wire under head of mounting screw.)
b. Safety the machine screws with MS20995-C32 wire.
c. Install the fuel tank. (Refer to Paragraph 9-7.)
9-14. FUEL QUANTITY TRANSMITTER/GAUGE CHECK. Fuel quantity transmitter unit and gauge may be
checked, while installed in the airplane, by the following procedure.
a. Turn the fuel selector valve off.
b. Completely drain the fuel tank that relates to the gauge to be checked. (Refer to Draining Fuel System,
c. Level the airplane longitudinally and laterally.
—NOTE—
The electrical system should apply 14-volts to the gauge.
9-15. FUEL QUANTITY GAUGE CALIBRATION. A calibration chart has been included for use in verifying
that the suspect faulty gauge is within tolerance. (Refer to Figure 9-4. )
—Note—
Actual recalibration of the gauge must be preformed by the
manufacturer or an approved instrument repair facility
a. With the instrument installed in the aircraft, the aircraft power connected (14 VDC ) and the ground
connected.
b. Remove the connection to the terminal marked SEND and connect a specified amount of resistance as
indicated on the chart, by use of a fixed resistor or a test unit capable of simulating the resistance indicated on the
chart (Power Resistor Decade Box)
c. If the gauge does not meet the tolerances set forth in the chart, it must be replaced or recalibrated.
d. Reinstallation is the reverse of the procedure used to remove it
THIS SPACE INTENTIONALLY LEFT BLANK
PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE MANUAL
Issued: FEBRUARY. 28, 1989
FUEL SYSTEM
2A15