Piper cherokee WARRIOR Pilots Operating Manual page 98

CHEROKEE WARRIOR
DRAINING FUEL SYSTEM
The bulk of the fuel may be drained by opening the individual drain on each tank.
The remaining fuel in the lines may be drained through the fuel collector manifold clrains
(on early models only) and the gascolator drain. Any individual tank may be drained
through its individual drain.
C A U T I O N
Whenever the fuel system is completely drained and fuel is re-
plenished it will be necessary to run the engine for a minimum of 3
minutes at 1000 RPM on each tank to insure no air exists in the fuel
supply lines.
TIRE INFLATION
For maximum service from the tires, keep them inflated to the proper pressures. The main
gear tires should be inflated to 24 psi and the nose gear should be inflated to 30 psi.
Interchange the tires on the main wheels if necessary to produce even wear. All wheels and
tires are balanced before original installation, and the relationship of the tire, tube, and wheel
should be maintained if at all possible. Unbalanced wheels can cause extreme vibration on
takeoff. ln the installation of new components, it may be necessary to rebalance the wheel with
the tire mounted.
When checking the pressure, examine the tires for wear, cuts, bruises, and slippage.
BATTERY SERVICE
Access to the l2-volt battery is obtained by raising the rear seat and removing the cover of
the battery box. The plastic battery box has a drain tube which is normally closed off with a
cap and which should be opened occasionally to drain off any accumulation of liquid.
The battery should be checked for proper fluid level. DO NOT fill the battery above the
baffle plates. DO NOT fill the battery with acid - use only water. A hydrometer check will
determine the percent of charge in the battery.
If the battery is not up to charge, recharge starting at a 4 amp rate and finishing with a 2
amp rate. Quick charges are ltot recommended.
WINTERIZATION
For winter operation a winterization plate is installed on the inlet opening of the oil
cooler. This plate should be installed whenever the ambient temperature reaches 50" F or less.
The plate should be removed and stored in the cockpit when the ambient temperature exceeds
5 0 " F .
HANDLING AND SERVICING
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