Piper Cherokee Six - Page 693

PIPER
CHEROKEE
SIX
SERVICE
MANUAL
13-19.
COMPRESSOR
REMOVAL.
The
removal
of the
compressor
requires
a
complete
system
discharge.
(See
Paragraph
13-12.)
a.
Be
certain
the
circuit
protector
is
off
for
the
air
conditioning
system.
b.
Remove
the
engine
cowling
and
right
front
baffles.
c.
Disconnect
the
electrical
leads
to
the
magnetic
clutch
on
the
compressor.
d.
Depressurize
the
air
conditioning
system.
e.
Remove
the
suction
and
discharge
lines
from
the
service
valves
on
the
compressor.
NOTE
All
open
lines
should
be
capped
immediately
to
prevent
dirt
and
moisture
from
entering
the
system.
f.
Loosen
the
bolt
securing
the
compressor
idler
pulley
to
release
the
belt
tension
and
remove
belt
from
compressor
pulley.
(Do
not
force
belt
over
the
pulleys.)
g.
Support
the
compressor
and
remove
the
6 bolts
securing
the
compressor
to
the
engine
mounting
brackets.
13-20.
COMPRESSOR
INSTALLATION.
a.
Place
the
compressor
to
the
mounting
brackets.
Install
the
six
bolts
and
progressively
torque
to 13-17
ft.
pounds.
(Safety
all
bolts
with
.032
safety
wire.
b.
Check
the
oil
level
in
the
compressor
in
accordance
with
instructions
given
in
paragraph
13-21.
c.
Place
drive
belt
over
clutch
pulley
and
adjust
the
alignment
of
the
pulleys
and
belt
in
accordance
with
instructions
given
in
paragraph
13-22.
CAUTION
Do
not
force
the
belt
into
the
pulley
sheave.
If
necessary,
remove
the
idler
assembly.
d.
Connect
the
discharge
and
suction
lines
to
their
respective
service
valve
fittings.
e.
Evacuate
and
charge
the
system
per
paragraphs
13-13
and
13-14.
WARNING
If the
air
conditioner
is
to
be
operated
on
the
ground
for
servicing,
the
test
area
should
be
clean
and
free
of
any
loose
objects
lying
on
the
ramp.
Only
the
service
valves
located
on
the
evaporator
assembly
should
be
used
for
testing.
ACCESSORIES
AND UTILITIES
Issued: 8/17/72
3H3