Piper ARCHER II Pilot Operating Handbook page 143

PIPER AIRCRAFT CORPORATION SECTION 7
'PA-28-181, ARCHER II DESCRIPTION & OPERATION
7.11 ENGINE CONTROLS
Engine controls consist of a throttle control and a mixture control lever.
These controls are located on the contro] quadrant on the lower center of the
instrument pane] (Figure 7-5) where they are accessible to both the pilot and
the copilot. The controls utilize teflon-lined control cables to reduce friction
and binding.
The throttle lever is used to adjust engine RPM. The mixture control
lever is used to adjust the air to fuel ratio. The engine is shut down by the
placing of the mixture control lever in the full lean position. For information
on the leaning procedure, see Section 4.27 of this Handbook.
The friction adjustment lever on the right side of the control quadrant
may be adjusted to increase or decrease the friction holding the throttle and
mixture controls or to lock the controls in a selected position.
The carburetor heat control lever is located to the right of the control
quadrant on the instrument panel. The control is placarded with two
positions: "ON" (down), "OFF" (up).
7.13 FUEL SYSTEM
Fuel is stored in two twenty-five gallon (24 gallons usable) tanks which
are secured to the leading edge structure of each wing by screws and nut
plates. Each tank is equipped with a filler neck indicator tab to aid in
determining fuel remaining when the tanks are not full. Usable capacity to
the bottom of the indicator tab is 17 gallons.
The fuel selector control (Figure 7-7) is located on the left side-panel,
forward of the pilot's seat. The button on the selector cover must be
depressed and held while the handle is moved to the OFF position. The
button releases automatically when the handle is moved back into the ON
position.
An auxiliary electric fuel pump is provided in case of failure of the
engine driven pump. The electric pump should be on for all takeoffs and
landings, and when switching tanks. The pump switch is located in the switch
panel above the throttle quadrant.