Taxiing; External Power Receptacle - Piper Lance II Service Manual

LANCE II SERVICE MANUAL
2-19. TAXIING. Before attempting to taxi the airplane, ground personnel should be
checked out by a qualified pilot or other responsible person. Engine starting and shut-down
procedures should be covered as well. When it is ascertained that the propeller back blast
and taxi areas are clear, apply power to start the taxi roll and perform the following checks:
a. Taxi forward a few feet and apply brakes to determine their effectiveness.
b. Taxi with propeller set in low pitch, high RPM setting.
c. While taxiing, make slight turns to ascertain the effectiveness of steering.
d. Observe wing clearances when taxiing near buildings or other stationary objects. If
possible, station a guide outside the airplane to observe.
e. When taxiing on uneven ground, look for holes and ruts.
f.
Do not operate the engine at high RPM when running up or taxiing over ground
containing loose stones, gravel or any loose material that may cause damage to the propeller
blades.
2-20. EXTERNAL POWER RECEPTACLE.
2-21. OPERATION OF EXTERNAL
POWER RECEPTACLE. The external power
receptacle is located on the left side of the nose section just aft of the engine cowling. When
using external power for starting or operation of any of the airplane's equipment, the
following procedure should be followed:
Turn the master switch OFF and turn all electrical equipment OFF. Connect the RED
lead of the PEP kit jumper cable to the POSITIVE (+) terminal of an external 12-volt
battery and the BLACK lead to the NEGATIVE (-) terminal. Insert the plug of the jumper
cable into the socket located on the fuselage. Note that when the plug is inserted, the
electrical system is ON. Proceed with the normal starting technique.
After the engine has started, reduce power to the lowest possible RPM, to reduce
sparking, and disconnect the jumper cable from the aircraft. Turn the master switch ON and
check the alternator ammeter for an indication of output. DO NOT ATTEMPT FLIGHT IF
THERE IS NO INDICATION OF ALTERNATOR OUTPUT. If aircraft battery is weak,
charging current will be high. DO NOT TAKE OFF until charging current falls below 20
amps.
NOTE
For all normal operations using the PEP jumper cables, the
master switch should be OFF, but it is possible to use the
ships battery in parallel by turning the master switch ON.
This will give longer cranking capabilities, but will not
increase the amperage. CAUTION: Care should be exercised
because if the ships battery has been depleted, the external
power supply can be reduced to the level of the ships battery.
This can be tested by turning the master switch ON
momentarily while the starter is engaged. If cranking speed
increases, the ships battery is at a higher level than the
external power supply.
When the engine is firing evenly, advance the throttle to 800 RPM. If oil pressure is not
indicated within thirty seconds, stop the engine and determine the trouble. In cold weather
it will take a few seconds longer to get an oil pressure indication. If the engine has failed to
start, refer to the Lycoming Operating Handbook, Engine Troubles and Their Remedies.
Starter manufacturers recommended that cranking periods be limited to thirty seconds
with a two minute rest between cranking periods. Longer cranking periods will shorten the
life of the starter.
Issued: 1/3/78
1C1
HANDLING AND SERVICING