Mazda CX-7 2007 Workshop Manual page 1149

7. Open the high-pressure side valve of the manifold
gauge and charge with refrigerant until the weight
of refrigerant tank has decreased 250 g {8.83 oz}
from the amount in Step 2.
8. Close the low-pressure side valve of the manifold
gauge.
Warning
• If charging the system with refrigerant
using service cans, running the engine
with the high-pressure side valve open is
dangerous. Pressure within the service
cans will increase and the cans could
explode, scattering metal fragments and
liquid refrigerant that can seriously injure
you. Therefore, do not open the high-
pressure side valve while the engine is
running.
9. Start the engine and actuate the A/C compressor.
10. Open the low-pressure side valve of the manifold
gauge and charge with refrigerant until the weight
of the refrigerant tank has decreased regular
amount from the amount in Step 2.
11. Close the low-pressure side valve of the manifold
gauge and the valve of the refrigerant tank.
12. Stop the engine and A/C compressor.
Leak Test
1. Inspect for leakage using the a gas leak tester.
• If there is no leakage, go to Step 3.
• If leakage is found at a loose joint, tighten the joint, then go to the next step.
2. Inspect for leakage again.
• If there is no leakage after tightening the joint, go to the next step.
• If there is still leakage at the same joint, discharge the refrigerant and then repair the joint. Repeat the
charging procedure from evacuation.
3. Disconnect the manifold gauge from the charging valves.
4. Install the caps to the charging valves.
End Of Sie
REFRIGERANT SYSTEM
OPEN
MANIFOLD
GAUGE
OPEN
CAP
MANIFOLD GAUGE
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07-10
acxuuw00000770
MANIFOLD GAUGE
acxuuw00000773
CAP
acxuuw00000774
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