Piper Lance II User Manual

805
0.015
MIN.
Figure
8-17.
Removing
Impulse
Coupling
Figure
8-18.
Checking
Flyweight
to
Stop
Pin
Clearance
8-32.
IMPULSE
COUPLING
REMOVAL.
a.
Using
heavy
gloves
or
shop
cloth,
grasp
the
coupling
body
firmly
to
prevent
the
internal
spring
from
unwinding
suddenly.
Pull
outward
on
the
coupling
body
only
enough
to
release
it from
the
cam
assembly.
Keep
the
coupling
body
close
against
the
cam
and
allow
the
body
to
turn
as
the
spring
unwinds.
After
one
or two
turns,
the
spring
coils
will
wedge
against
the
projections
on
the
body,
restraining
the
spring
from
further
unwinding.
b.
Look
into
the
hole
in
body
and
note
the
location
of
the
inner
eye
of
spring
where
it
engages
with
mating
recess
in
cam
hub.
Insert
a
screwdriver
under
spring
end
and
pry
spring
eye
out
of
recess.
Remove
the
body
and
spring
together.
Uncoil
spring
from
body
and
pry
spring
eye
from
body
recess
to
disengage
spring.
c.
Thread
protective
cap
of
11-702-1
puller
securely
on
end
of
shaft.
Engage
puller
over
protective
cap
and
cam
assembly
with
wide
jaws
of puller
hooked
under
cam
assembly
as
shown
in
Figure
8-17.
d.
Tighten
puller
handle
to
remove
coupling
from
shaft.
If
coupling
does
not
release
with
maximum
hand
torque
at
puller
handle,
apply
penetrating
thread
release
compound
between
coupling
and
shaft.
Then
while
puller
is
still
fully
tightened,
hold
tip
of
hot
heavy
duty
soldering
iron
in contact
with
hub
of
coupling
cam
assembly.
Solder
wetting
of
the
tip
at
point
of
contact
with
the
cam
hub
will
assist
in
heat
transfer
to
the
parts.
Retighten
puller
after
about
a
minute
of
heat
application.
CAUTION
Do
not
strike
the
puller
with
a
hammer.
If
puller
is
struck
with
a
hammer
the
main
bearings
must
be
replaced.
Issued:
1/3/78
POWER
PLANT
2B11
LANCE
II SERVICE
MANUAL

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