Piper ARCHER II Pilot Operating Handbook page 200

Petersen Aviation, inc.
984 K Road
Minden, NE 68949
2. PROCEDURES SECTION:
Emergency Procedures
Fuel Management
When operating on auto gas, including when auto gas is intermixed with aviation gasoline:
a) Right fuel quantity less than % tank - Land using left fuel tank.
NOTE:
Operating on the left tank may make the airplane more susceptible to vapor formation
than the right tank. ;
Fuel System:
Fuel Pump Failure
SA2660CE
equips PA-28's with two separate electric fuel pumps.
If one pump
fails, throw the three way fuel pump switch to engage the second, redundant
electric fuel pump.
If the other electric fuel pump is also inoperative, check to
make sure the Master switch is ON, check circuit breakers.
Normal Procedures: _
Fuel Management:
When operating on auto gas, including when auto gas is intermixed with aviation gasoline:
a) Before Takeoff
(1) Fuel Selector ~ Right Tank
b) Cruise
(1) Fuel Seiector — Use right and left tank positions to maintain lateral fuel balance.
NOTE:
Vapor formation is more likely when operating at ambient temperatures of 85F or
above.
Additional vapor margin is provided from the right tank due te its larger fuel supply
line, and when the fuel quantity in the right tank is maintained at or above the % full
indication.
Plan flight so as to have % tank or more fuel remaining in the right tank for
landing and possible go-around. .
c) Before Landing
(1) Fuel Selector — Right tank.