Piper Cherokee Arrow II Pilots Operating Manual page 28

ARROW I1
FUEL SYSTEM
The fuel system was designed with simplicity in mind. It incorporates two fuel tanks, one
in each wing containing twenty-five (25) U.S. gallons, giving a total of 48 usable gallons. The
tanks are attached to the leading edge of the wing with screws and are an integral part of the
wing structure. This allows for easy removal for service. An auxiliary electric fuel pump is
provided in case of a failure of the engine driven pump. A rocker type switch for controlling the
electric pump is located on the switch panel above the throttle quadrant. The electric pump
should be on for take-off, switching tanks and during landing.
The fuel tank selector, which allows the pilot to control the flow of fuel to the engine, is
located on the left side wall below the instrument panel. It has three positions: OFF, LEFT
TANK and RIGHT TANK. The arrow on the handle of the selector points to the tank which is
supplying fuel to the engine. The valve also incorporates a safety latch which prevents
inadvertently selecting the "OFF" position.
Each tank has an individual quick drain located at the bottom inboard rear corner. The
fuel strainer also incorporates a quick drain which is located in the left front comer of the
firewall. The quick drain protrudes from the cowling to allow easy draining of the fuel strainer.
All three drains should be drained before every flight and checked for contamination.
The fuel tanks are vented individually by a vent tube which protrudes below the bottom of
the wing at the rear outboard comer of each fuel tank. The vent should be checked periodically
to ascertain that the vent is not obstructed and allows free passage of air.
Fuel quantity and pressure are indicated on gauges located in the instrument cluster to the
left of the switch panel.
Fuel Selector
AIRPLANE AND SYSTEMS
ISSUED: JULY 13,1973