Piper Cherokee Six - Page 694

PIPER CHEROKEE
SIX SERVICE MANUAL
13-21.
CHECKING
COMPRESSOR
OIL.
The oil
level
should
be
checked
any
time
the
system
is discharged.
The
following
steps
should
be
followed
to
perform
this
check:
a.
It
will be
necessary
to discharge
the
system.
(Refer
to Paragraph
13-12.)
b.
Fabricate
an
oil
dipstick.
(Refer
to Figure
13-9.)
c.
Remove
the
oil fill
plug.
(A .375
inch
plug
in the
top side
of the
compressor
crankcase.)
d. Before
inserting
the
dipstick,
the
crankshaft
Woodruff
key
should
be
located
in
the
up
position.
(The
front
face
of
the compressor
clutch
is marked
with
a stamped
"K"
indicating
the key
position.)
The
oil level
should
be measured
from
the
lowest
point
in
the
crankcase.
Use the
long
end
of the
dipstick.
(See
Figure
13-9.)
e.
With
the compressor
in the
installed
position
use
Table
XIII-III
to
determine
the
amount
of
oil in the
crankcase.
f.
The
compressor
should
never
be operated
with
less than
6
ounces
of oil.
When
oil is
added
the level
should
not
go
above
12 ounces.
Suniso
No.
5. Texaco
Capellae,
Texaco
Capallae
(wax-free).
Napa
Temp.
Refrigerant
Oil
No.
9500
or equivalent
500
viscosity
refrigerant
oil
must
be used.
g.
Reinstall
the
oil fill
plug. Insure
that
the sealing
O-ring
is
not twisted
when
slipping
it over
the oil
fill plug
threads.
Insert
and tighten
the
plug.
If itleaks,
do
not attempt
to stop
the
leak
by overtightening
the plug.
The
leak
may be
caused
by dirt
underthe
O-ring
oron the
seat.
a fractured
O-ring
or a damaged
seat
on the
oil fill
plug
or oil
fill opening.
To stop
the leak
correct
the mechanical
damages
and
insert a
new O-ring.
h.
Evacuate
and
charge
system.
(Refer
to Paragraphs
13-13
and 13-14.)
NOTE
The
10 ounce
oil level
is required
in compressors
installed
on
new
systems.
Some
oil is
distributed
in the
system
during
operation.
Replacement
compressors
should
be charged
with
10 ounces of oil.
CAU TION
The
oil plug
should
not
be removed
with
pressure
in the
system.
TABLE
X111-111.
COMPRESSOR
OIL
CHARGE
Oil Charge
Ounces
6
8
10
16
Dipstick
Reading
Inches
13/16"
1.00"
1-3/16"
1-15/16"
Revised:
11/4/83
ACCESSORIES
AND
UTILITIES
3H4