Piper Cherokee Six - Page 702

PIPER
CHEROKEE SIX
SERVICE MANUAL
13-27.
REFRIGERANT
LINES
AND ROUTING.
The
refrigerant
lines
in
this
aircraft
are
flexible
high
pressure
hoses
and
should
be
handled
accordingly.
The
hoses
in
the
power
plant
area
are
routed
so
as to
provide
maximum
protection
from
heat
and
abrasion.
They
couple
at the
firewall
to
hoses
routed
through
the
two
inboard,
external
hat
section
on
the
bottom
of
the
fuselage,
up
thru
the
floor
to
the
condenser
and
evaporator
in
the
tail
cone.
The
discharge
is
in
the
right
hat
section
and
the
suction
in
the
left.
NOTE
Before
any
of
the
hose
couplings
are
uncoupled,
the
system
must
be
completely
discharged.
(See
Paragraph
13-12.)
13-28. RECEIVER-DEHYDRATOR.
13-29.
RECEIVER-DEHYDRATOR
REMOVAL.
This
unit
is
mounted
on
the
inboard
side
of the
evaporator
assembly
housing.
a.
Discharge
the
system
of
all
refrigerant.
(See
Paragraph
13-12.)
b.
Uncouple
the
refrigerant
lines
at
the
receiver-dehydrator.
(See
Paragraph
13-5.
B-7.)
c.
Remove
the
clamp
attaching
the
unit
to the
evaporator
housing.
NOTE
This
part
is
not
serviceable,
it
must
be
replaced.
The
receiver-dehydrator
should
be
replaced
when
the
system
has
been
operated
without
a
charge
or
is left
open.
13-30.
RECEIVER-DEHYDRATOR
INSTALLATION.
a.
Slip
the
mounting
bracket
around
the
receiver
and
put
it
in place
on
the
evaporator
housing
with
the
tube
fitting
on
top.
Align
the
fittings
to the
proper
line
before
securing
the
mounting
bracket.
NOTE
Torque
the
fittings
(See Table
XIII-II)
b.
Evacuate
and
recharge
the
system
in
accordance
with
paragraphs
13-13
and
13-14.
ACCESSORIES
AND
UTILITIES
Issued: 8/17/72
3H12