Piper Warrior III - CLEANING AND INSPECTION; FUEL SELECTOR VALVE; REMOVAL; INSTALLATION

PIPER AIRCRAFT, INC.
PA-28-161, WARRIOR III
MAINTENANCE MANUAL
PAGE 2
Nov 30/06
2K2
28-20-00
(6) Turn ON fuel pump and pressurize system. Check gascolator assembly for leaks. Turn OFF
fuel pump.
(7) Install engine cowling.
C. Cleaning and Inspection
(1) Follow steps (1), (2), and (4) under Removal, above, to remove strainer bowl.
(2) Remove gasket and screen from body.
(3) Clean screen and bowl with acetone or a suitable dry type solvent. If damaged, replace
screen. (If replacing screen, also replace gasket.)
(4) Position gasket and screen in body.
(5) Position strainer bowl and bail wire. Hand-tighten bail nut, then tighten one flat with a wrench.
(6) Safety bail nut and bail wire assembly.
2. Fuel Selector
Valve
The fuel selector valve is located on the left side of the cabin in front of the pilot’s seat.
CAUTION: NO FIELD DISASSEMBLY OR REPAIR OF FUEL SELECTOR VALVES IS AUTHORIZED.
MAINTENANCE IS LIMITED TO REMOVAL AND REPLACEMENT OF THE WHOLE UNIT.
A. Removal
(1) Remove three screws holding selector cover and screw holding handle. Remove side panel to
access selector valve.
(2) Remove selector handle and cover.
(3) Disconnect fuel lines from selector valve.
(4) Remove fuel valve assembly attaching screws to remove fuel valve assembly.
B. Installation
(1) Secure valve to bulkhead attachment location with attaching screws.
CAUTION: SEAL ALL PIPE THREADS WITH TITESEAL NO. 3.
(2) Connect fuel lines to valve.
(3) Install side panel.
(4) Install selector cover with attaching screws.
(5) Install valve control handle with attaching screws.
3. Electric Fuel Pump
The Warrior III is equipped with a 28 Vdc electric fuel pump which is mounted on the left forward side of
the firewall.
A. Removal
CAUTION: CHECK ALL ELECTRICAL LEADS ARE DISCONNECTED BEFORE FUEL PUMP
REMOVAL.
(1) Remove the cowling by releasing cowling fasteners and attaching screws.
(2) Check fuel shutoff valve is in the off position.
(3) Disconnect fuel pump electrical leads.
(4) Disconnect fuel lines from inlet and outlet sides of pump. Disconnect fuel inlet line from pump.
Disconnect the main fuel and fuel primer outlet lines from tee fitting.
(5) Remove nuts and bolts holding pump to its mounting bracket and remove fuel pump.