Subaru LEGACY 2004 Service Manual page 17

• Apply compressor oil to O-rings to avoid sticking,
before installation.
• Use a torque wrench to tighten the O-ring fittings.
Over-tightening will result in damage of 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 foreign matter
from entering.
(A)
(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 tube beads.
(A)
(B)
(C)
(C)
(A) O-ring
(B) OK
(C) NG
(D) Bead
• Use compressor oil specified in the service man-
ual to lubricate the O-rings.
Apply oil to the top and sides of O-rings before in-
stallation.
General Description
Apply compressor oil to the bead of tube.
• After tightening, use a clean cloth to remove ex-
cess compressor oil from the connections and any
oil which may have run on the vehicle body or other
parts.
• If any leakage is suspected after tightening, do
not further tighten the connections, but disconnect
the connections, remove the O-rings, and check
AC-00008
the O-rings, threads, and connections.
(D)
AC-00009
AC-15
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
AC-00010