Operation CHARM: Car repair manuals for everyone.

Service Equipment




PRECAUTIONS

Service Equipment


RECOVERY/RECYCLING RECHARGING EQUIPMENT

Be certain to follow the manufacturers instructions for machine operation and machine maintenance. Never introduce any refrigerant other than that specified into the machine.

ELECTRICAL LEAK DETECTOR

Be certain to follow the manufacturers instructions for tester operation and tester maintenance.

MANIFOLD GAUGE SET






Be certain that the gauge face indicates HFC-134a or R-134a. Be sure the gauge set has 1/2" -16 ACME threaded connections for service hoses. Confirm the set has been used only with refrigerant
HFC-134a (R-134a) and specified oils.

SERVICE HOSES






Be certain that the service hoses display the markings described (colored hose with black stripe). All hoses must have positive shutoff devices (either manual or automatic) near the end of the hoses opposite to the manifold gauge.

SERVICE COUPLERS






Never attempt to connect HFC-134a (R-134a) service couplers to the CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers do not properly connect to the CFC-12 (R-12) system. If an improper connection is attempted, discharging and contamination may occur.






CHARGING CYLINDER

Using a charging cylinder is not recommended. Refrigerant may be vented into air from cylinder's top valve when filling the cylinder with refrigerant. Also, the accuracy of the cylinder is generally less than that of an electronic scale or of quality recycle/recharge equipment.