PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 1
Nov 30/06
2K9
28-40-00
INDICATING
1. Standard Installation
A. Description
The Warrior III fuel quantity gauge is a dual instrument (two indicators in one case), calibrated in
fractional divisions of 0, 5, 10, 15, 20 (gallons), and F (FULL). A transmitter unit (i.e. - sender),
comprising a resistance strip and a movable control arm, is installed in each fuel tank. The arm
position is controlled by a float in the fuel tank. The float position is transmitted electrically to the
indicator needles, which move to show the amount of fuel in each tank.
Gauge removal and installation instructions are found in 39-10-00.
B. Troubleshooting.
Troubles unique to the fuel indicating system are listed in Chart 1 along with their probable causes
and likely remedies.
C. Fuel Quantity Transmitter Unit (i. e. - Sender)
(1) Removal
(a) Remove fuel tank. (See Fuel Tank - Removal, 28-10-00.)
(b) Disconnect transmitter wire from the connection post.
(c) Cut the safety wire securing the five attaching screws.
(d) Remove the five attaching screws. Remove the transmitter unit.
(2) Installation
(a) Position transmitter and gasket to the fuel tank. Secure with five machine screws and
washers.
(b) Safety the machine screws with MS20995-C32 wire.
(c) Connect transmitter wire to the connection post.
(d) Install the fuel tank. (See Fuel Tank - Installation, 28-10-00.)
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