Subaru Forester Air Conditioning System 1999 2000 (8) PDF

4. O-ring Connections
A: GENERAL
The following points should be kept in mind when
assembling O-ring connections:
1) Avoid unnecessary handling and contact of
O-rings with your hands, since even clean fingers
contain body acids, which can contaminate the
O-ring surface.
2) Do not handle O-rings with gloves, shop towels,
etc., since lint particles may cling to the O-ring,
possibly causing a leak upon assembly.
3) Always lubricate O-rings before assembly to
allow the O-ring to seat itself properly.
4) Be certain to use torque wrenches when tight-
ening O-ring fittings, because overtightening can
not only damage the O-ring, but it can distort the
tube end as well.
B: REMOVE PROTECTIVE SEALS
1) Just prior to making the connection, remove the
protective seals (A).
CAUTION:
If for any reason you have to stop before mak-
ing a connection, recap the tube, component or
fitting.
S4M0492A
2) Visually inspect the O-ring surface, the O-ring
mating surface, the threads and the connection
points. If a defective part is found, replace it.
The O-ring must sit square against the tube bead.
If necessary, slide the O-ring into proper position
with clean hands.
G4M0582
11
[W4B0] 4-7SERVICE PROCEDURE
4. O-ring Connections

Subaru Forester Air Conditioning System 1999 2000 (8) Summary of Content

4. O-ring ConnectionsA: GENERALThe following points should be kept in mind whenassembling O-ring connections:1) Avoid unnecessary handling and contact ofO-rings with your hands, since even clean fingerscontain body acids, which can contaminate theO-ring surface.2) Do not handle O-rings with gloves, shop towels,etc., since lint particles may cling to the O-ring,possibly causing a leak upon assembly.3) Always lubricate O-rings before assembly toallow the O-ring to seat itself properly.4) Be certain to use torque wrenches when tight-ening O-ring fittings, because overtightening cannot only damage the O-ring, but it can distort thetube end as well.B: REMOVE PROTECTIVE SEALS1) Just prior to making the connection, remove theprotective seals (A).CAUTION:If for any reason you have to stop before mak-ing a connection, recap the tube, component orfitting.S4M0492A2) Visually inspect the O-ring surface, the O-ringmating surface, the threads and the connectionpoints. If a defective part is found, replace it.The O-ring must sit square against the tube bead.If necessary, slide the O-ring into proper positionwith clean hands.G4M058211[W4B0] 4-7SERVICE PROCEDURE4. O-ring Connections