Mazda MX-6 1998, Workshop Manual

Page: 919 / 1282

REFRIGERANT SYSTEM
MANIFOLD
GAUGE
W6U710WA7
W6U710WA9
18. Close the low-pressure side valve of the manifold
gauge.
GAUGE
MANIFOLD
GAUGE
15. When the high-pressure side reading increases
0.098 MPa {1.0 kgf/cm2, 14 psi}, close the
low-pressure side valve of the manifold gauge.
GAUGE
16. Check for leaks from the cooler pipe/hose
connections by using a gas leak tester. If there are
no leaks, go to step 17. If a leak is found at a
loose joint, tighten the joint and check for leaks
again. If there is still a leak at the same joint,
discharge the refrigerant and then repair the joint.
Repeat the charging procedure from step 7. If
there are no leaks after tightening the joint, go to
step 17.
Warning
•
If charging the system with refrigerant by
service cans or refrigerant tank, running
the engine with the high-pressure side
valve open is dangerous. Pressure within
the service cans or refrigerant tank will
increase and they 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.
17. Open the low-pressure side valve of the manifold
gauge and charge with refrigerant until the weight
of refrigerant tank has decreased
350 g {12.4 oz}
from the amount in step 13.
Warning
•
If charging the system with refrigerant by
service cans or refrigerant tank, running
the engine with the high-pressure side
valve open is dangerous. Pressure within
the service cans or refrigerant tank will
increase and they 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.
19. Start the engine and actuate the A/C compressor.
20. Open the low-pressure side valve of the manifold
gauge and charge with refrigerant until the weight
of the refrigerant tank has decreased
750 g {26.5
oz} from the amount in step 13.
21. Close the low-pressure side valve of the manifold
gauge and the valve of the refrigerant tank.
22. Stop the engine and A/C compressor.
MANIFOLD
GAUGE
W 6 U 7 1 0 W A B
0 7 -1 0 -4