S0605050K
Page 25
Air Conditioner
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INSPECTING SYSTEM FOR LEAKAGE
After completing charging procedures, clean all
joints and connections with a clean dry cloth.
Using a refrigerant leak detecting device or
soapy water, inspect system for leaks starting
from the high pressure side.
NOTE:
When the refrigerant circulation
has been stopped the high
pressure will start to decrease
and the low pressure will start
to increase until they are
equalized. Starting the
inspection from the high side
will result in a accurate test.
Inspection Procedure
1. High pressure side.
Compressor outlet → condenser inlet → receiver dryer inlet → air conditioner unit inlet
2. Low pressure side.
Compressor inlet → air conditioner unit outlet
3. Compressor.
Compressor shaft area, bolt hole area and magnetic clutch area.
4. Receiver dryer.
Pressure switch and plug area.
5. Connection valve area.
Inspect all valve areas.
Verify all valves are capped to prevent leaking.
Check for foreign matter inside of valve cap.
6. Interior of air conditioner unit.
After stopping engine, insert detector probe into drain hose. (Leave inserted for 10 seconds
minimum.)
NOTE:
When inspecting leakage from the air conditioner unit, perform the inspection in a well-
ventilated area.
Reference
Number
Description
1 Pressure
2 High Pressure
3 Low Pressure
4 Compressor Stop
1
2
3
4
HDA6073L
Figure 22
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