Piper Lance II User Manual

LANCE II SERVICE MANUAL
8. With the glide established,
turn the adjustment screw
(2) clockwise until the
gear drops. (First indication of gear
dropping will be that the gear unsafe
light comes ON.)
9.
Climb again to a
safe altitude and
check that the
gear drops at the
correct
airspeed.
10. Land the airplane and
tighten the adjustment screw
jam nut (28).
c. To check adjustment
of electrical
switch, the
following procedure
may be used:
1. Place the airplane on jacks. (Refer to Jacking, Section II.)
2. Move
the mixture
control back to
idle cut-off and
the throttle to
full
forward to prevent
gear warning horn from sounding
during adjustment.
3. Ascertain
that
the actuator
tension
springs are
properly
adjusted according
to Step a.
4.
Retract
the landing
gear hydroelectrically
by turning
the master
switch ON,
raising
the emergency gear
extension lever
and moving the gear
selector switch
to the up
position.
The emergency
gear extension lever
must be retained
in the up position
to keep
the gear up.
5.
Check for proper
switch operation
by the
following procedure:
(a) Turn
master
switch ON
and move
gear selector
switch
to the
up
position.
Pump
should
not
operate.
(b) Move
the emergency
gear
extension
lever to
the up override
position.
Pump
should
operate
and gear should
retract.
(c) With
selector
lever up,
slowly lower
emergency
gear extension
lever
to
allow gear to drop to down
position. The pump should
not operate at
any time during extension.
(d)
Turn
master
switch
OFF.
6. Check gear operation in the normal manner with the use of the gear selector
switch. The
emergency extension lever must
be held in the up override position.
7.
Ascertain
that gear is
down and locked
and remove
airplane
from jacks.
Then
flight check
the retractable
landing gear
system. (Refer to
Paragraph 6-14a.)
6-14a. OPERATIONAL
CHECK
OF RETRACTABLE
LANDING
GEAR SYSTEM.
a. Maximum
Gear Extend:
Place
the gear selector
in the
down position
at 130
KIAS.
In approximately
5 to 10 seconds the
three green gear lights
should be on indicating
that the
gear is down
and locked.
b. Minimum
Gear
Retract: Allow
approximately
8
seconds for
the pressure
in the
hydraulic
system
to normalize
between
gear
extension
and retraction.
Place the
selector
switch
in the
UP position
at
109 KIAS.
In approximately
5 to 10
seconds
all the gear
indicating lights
should be out,
indicating that
the gear is fully
retracted.
c.
Override Gear
Down and
Up:
1. Down:
Establish
a normal
glide
at approximately
113 KIAS,
with
power
at idle.
Slowly move the
override lever down,
while observing
the ammeter to
confirm that the
hydraulic
pump does
not start.
The
gear should
go down
and lock.
Move the
gear selector
switch down.
Release
the override lever.
The gear should
remain down.
2.
Up: Set maximum
climb power.
Maintain approximately
70
KIAS for
approximately
15 seconds.
Move
the gear
selector
switch to
the up position.
The
gear should
not
retract.
Pull the
override
lever up.
The gear
should
retract.
Allow the
airspeed
to
increase
to at least 113
KIAS. Release
the override
lever and
the gear
should remain
up.
Issued: 1/3/78
HYDRAULIC SYSTEM
1I6

Piper Lance II Specifications

General

Manufacturer	Piper Aircraft
Max Takeoff Weight	3, 600 lb (1, 633 kg)
Crew	1
Horsepower	300 hp
Seats	6
Length	27 ft 7 in (8.41 m)
Capacity	5 passengers