Piper Lance II User Manual

LANCE
II
SERVICE
MANUAL
Figure
11-25.
Removal
of
Drive
End Head
Figure
11-26.
Removal
of End
Head
Bearing
f.
To remove
the drive
end
head from
the
rotor
shaft, use
a puller
that
grips
on the
bearing
retainer
plate
as
shown
in Figure
11-25.
Do
not
attempt
to
remove
by supporting
the
end
head
and
pressing
on
the
shaft,
as this
may
result
in
distortion
of the
end
head
or
stripping
of the
retainer
plate
screws.
Remove
the three
retainer
plate screws
and press
the
bearing
out of
the
end head.
(Refer
to Figure
11-26.)
11-36.
INSPECTION
AND
TESTING
OF COMPONENTS.
Upon
completion
of
the
disassembly,
all
parts
should
be cleaned
and visually
inspected
for
cracks,
wear
or distortion
and
any
signs
of overheating
or
mechanical
interference.
a. Rotor:
The rotor
should
be tested
for grounded
or shorted
windings.
The
ground
test
can be
made
with
test
probes,
connected
in series
with
a
110
volt test
lamp,
an
ohmmeter
or any
type
of continuity
tester.
(Refer
to
Figure
11-27.)
There
must
not be
any
continuity
between
the
slip rings
and
the
rotor
shaft
or
poles.
To
test for
shorted
turns
in
the
rotor
winding,
connect
a voltmeter,
ammeter
and
rheostat
as
shown
in Figure
11-28.
or
use
an
ohmmeter.
Rotor
current
draw
and
resistance
are
listed
in the
specifications
given
in
Paragraph
11-39.
Excessive
current
draw
or a
low ohmmeter
reading
indicates
shorted
windings.
No
current
draw
or
an infinite
ohmmeter
reading
would
indicate
an
open
winding.
b.
Rectifiers:
A
diode
rectifier
tester
will
detect
and pinpoint
open
or shorted
rectifiers
without
going
through
the operation
of disconnecting
the stator
leads.
However,
if
a tester
is not
available,
test
probes
and a
No. 57
bulb, connected
in series
with
a 12 volt
battery,
can be
used in
the following
manner.
Touch
one test
probe
to a rectifier
heat
sink
and
the
other test
probe
to a lead
from
one of
the rectifiers
in that heat
sink.
Then
reverse
the
position
of the
leads. The
test bulb
should
light in one
direction
and not
light in
the
Issued:
1/3/78
ELECTRICAL
SYSTEM
2G15

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