Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Legacy 2000-2003 Approved Subaru Legacy 2000 2000 Service Manual MECHANICAL COMPONENTS SECTION AIR CONDITIONING SYSTEM MSA5TCD00L17579
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>> Download MSA5TCD00L17579 documenatation <<Text preview - extract from the document4-7 [W8A0] SERVICE PROCEDURE
8. Leak Testing
8. Leak Testing 3. CALIBRATE LEAK DETECTOR
Refer to the manufacturer's instructions for the par-
A: INSPECTION ticular type of detector used and calibrate the
The following points should be kept in mind when instrument.
conducting a refrigerant leak test.
CAUTION:
1) The A/C system to be tested must have an
Always make sure that the probe tip filter is
adequate refrigerant charge to begin with.
clean and free of contamination.
2) The area where the leak test is conducted must
be free of wind and drafts, with still air being the
ideal condition.
3) The atmosphere where the leak test is con-
ducted must be free of refrigerant contamination.
4) Operate the A/C system for approx. 10 minutes,
then turn the engine off and begin the leak test.
5) Refrigerant gas is heavier than air, therefore
always hold the probe below the connection being
tested.
6) When checking for a leak along a length of
hose or tube, the leak detector probe must be
moved slowly, approx. 25 mm (1 in) per second
making sure probe does not come in contact with
the component being tested.
7) When checking for a leak at a certain point, the
leak detector probe must be held at that point for
at least 5 seconds.
1. CHECK THE SYSTEM PRESSURE
With gauges connected to the A/C system, operate
the A/C and confirm that the high side pressure is G4M0610
above 690 kPa (7.03 kg/cm2, 100 psi). If not,
evacuate and charge the system before leak
checking. 4. LEAK TEST -- HIGH-PRESSURE SIDE
Operate the A/C system for approx. 10 minutes,
then turn the engine off and begin the leak test.
1) Begin at the connection of the high-pressure
tube to the evaporator, and work your way along
the high-pressure side of the system to the com-
pressor. There are three places to check each tube
connection.
2) Check the area:
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