Raytheon Beech Baron E55 - Page 466

Raytheon
Aircraft
Company
BARON
55
AND
58
SHOP MANUAL
COMPRESSOR
MOUNT INS
TALLA
TION
I
cnvnoa
I
CAUTION
The
following
steps
must
be followed
exactly
to
prevent
cracking
of the
compressor
mount.
a.
Install
existing
engine
case
washer/spacer
on
upper
7/16
in.
bolt
(10)
and
torque
240
to
260
in.-lbs
(refer
to
Figure
7).
b.
Add
peelable
shim
(9) (P/N
58-380082-7),
and
peel
as
required
to
fill
any space
between the
compressor
mount
and
the
engine
case/spacer
at
the
lower
7/16
in.
bolt
to
within
0.002
in.
c.
Torque
the
upper
and lower
7/16
in.
bolts
to
490
to
510
in.-lbs.
d.
Add
peelable
shim
(9) (P/N
58-380082-3),
and
peel
as
required
at
the
two
5/16
in.
bolt
(11)
locations between
the
compressor
mount
and
the
engine
case
to
fill
any space
within
0.002
in.
e.
Torque
the 5/16
in. bolts
to
180
to
220
in.-lbs.
f.
Install
the idler
pulley
support
assembly.
COMPRESSOR
REMOVAL
a.
Gain
access
to
the
LH
engine.
b.
Remove
electrical
leads
from
compressor
clutch
terminals.
IWARNINOI
WARNING
Due
to
the
air
quality
control
regulations
enacted
in
the
United
States,
R-12
and R-134a
I
refrigerant
cannot
be vented
into the
atmosphere.
When
performing
maintenance
on
the
air
conditioning
system
where
R-12
or
R-134a
can
escape
from
the
system,
evacuate
the
system
with
a
recovery
or
recycle
servicing
unit that will
salvage
the
refrigerant.
The
air
conditioning system
is
a
high
pressure
system.
Before
disconnecting
a
refrigerant
line,
the
system
must
be
discharged
with
a
recovery
servicing
unit.
Purge
the
entire
system
to
a
125
micron
level.
A
face
shield
should
be
worn
when
performing
maintenance
on
the
lines
because
refrigerant
coming
in
contact
with the
eyes
can
cause
loss
of
sight.
Do
not
smoke
when
servicing
the
system
with
R-12
or
R-134a
because
it
converts
to
a
highly
toxic
gas
when
exposed
to
an
open
flame.
c.
Using
the service
valves in
the
fuselage
forward
of
the
main
spar,
slowly discharge
the
system
with
the
recovery
recycle
servicing
unit
until
all
pressure
is
bled
off.
d. Disconnect
refrigerant
lines
at the
compressor.
Cap
the
refrigerant
lines
and
compressor
fittings.
I;
Remove the
compressor
belt.
Refer
to
the
COMPRESSOR
BELT
REMOVAL
procedure.
Remove
the
four
compressor
mounting
bolts
(3)
and
nuts
and
remove
the
compressor
(2)
(refer
to
Figure
7).
Jun
27/03Page
28
SECTION
10
E20