Subaru Legacy 2003 Service Manual page 3438

• In order to avoid destroying the ozone layer, pre-
vent HFC-134a from being released into the atmo-
sphere. Using a refrigerant recovery system,
discharge and reuse it.
( A )
( C )
(A) Goggle
(B) Gloves
(C) Avoid open flame
(D) No direct heat on container
(E) Do not discharge
(F) Loosen
GENERAL DESCRIPTION
( B )
( D ) ( F )
( E )
AC-00007
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
5. O-RING CONNECTIONS
• Use new O-rings.
• In order to keep the O-rings free of lint which will
cause a refrigerant gas leak, perform operations
without gloves and shop towels.
• Apply the compressor oil to the O-rings to avoid
sticking, then install them.
• Use a torque wrench to tighten the O-ring fittings:
Over-tightening will damage the O-ring and tube
end distortion.
• If the operation is interrupted before completing a
pipe connection, recap the tubes, components, and
fittings with a plug or tape to prevent contamination
from entering.
(A) Seal
• Visually check the surfaces and mating surfaces
of O-rings, threads, and connecting points. If a fail-
ure is found, replace the applicable parts.
• Install the O-rings at right angle to the tube
beards.
(A) O-ring
(B) O.K.
(C) N.G.
(D) Bead
AC-17
( A )
( A )
( B )
( D )
( C )
( C )
AC-00008
AC-00009