Refrigerant: Tools and Equipment
REFRIGERANT SYSTEM SERVICE EQUIPMENT
WARNING: Eye protection must be worn when servicing an A/C refrigerant system. Turn all valves off (rotate clockwise) on the equipment being used before connecting or disconnecting service equipment from the refrigerant system. Failure to observe these warnings may result in serious or fatal injury.
WARNING: Review safety precautions and warnings in this group before performing this procedure Warning and Caution. Failure to follow the warnings and cautions may result in serious or fatal injury.
When servicing the front or optional rear A/C system, a R-134a refrigerant recovery/recycling/charging station that meets SAE standard J2210 must be used (1). Contact an automotive service equipment supplier for refrigerant recovery/recycling/charging equipment. Refer to the operating instructions supplied by the equipment manufacturer for proper care and use of this equipment.
A manifold gauge set (1) may be needed with some recovery/recycling/charging equipment. The manifold gauge set should have manual shut-off valves (2 and 6), or automatic back-flow valves located at the service port connector end of the manifold gauge set hoses (4 and 5). This will prevent refrigerant from being released into the atmosphere.
REFRIGERANT PORT CONNECTIONS-FRONT A/C SYSTEM
CAUTION: Do not use an R-12 manifold gauge set on an R-134a system. The refrigerants are not compatible and system damage will result.
RECOVERY/RECYCLING/EVACUATION/CHARGING HOSE The center manifold hose (Yellow, or White, with Black stripe) (3) is used to recover, evacuate, and charge the front A/C refrigerant system. When the low or high pressure valves on the manifold gauge set are opened, the refrigerant in the system will escape through this hose.
HIGH PRESSURE GAUGE HOSE The high pressure hose (Red with Black stripe) (4) attaches to the high side service port located on the A/C liquid line, near the front A/C expansion valve in the engine compartment. An A/C pressure transducer is used on this model and a scan tool may be used to monitor high-side pressures.
LOW PRESSURE GAUGE HOSE The low pressure hose (Blue with Black stripe) (5) attaches to the low side service port located on the A/C suction line, also near the front A/C expansion valve.
REFRIGERANT PORT CONNECTIONS-REAR A/C SYSTEM
CAUTION: Do not use an R-12 manifold gauge set on an R-134a system. The refrigerants are not compatible and system damage will result.
RECOVERY/RECYCLING/EVACUATION/CHARGING HOSE The center manifold hose (Yellow, or White, with Black stripe) (3) is used to recover, evacuate, and charge the rear A/C refrigerant system. When the low or high pressure valves on the manifold gauge set are opened, the refrigerant in the system will escape through this hose.
HIGH PRESSURE GAUGE HOSE The high pressure hose (Red with Black stripe) (4) attaches to the high side service port located on the rear A/C discharge line, near the right front frame rail in the engine compartment.
LOW PRESSURE GAUGE HOSE The low pressure hose (Blue with Black stripe) (5) attaches to the low side service port located on the rear A/C suction line, also near the right front frame rail.