Handling of Refrigerant Lines and Fittings. Cadillac Catera 1997

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 1997 🢒 Catera 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Handling of Refrigerant Lines and Fittings

Refrigerant Lines and Locations

Object Number: 153275 Size: MF


(1)	Discharge Hose
(2)	Compressor Hose Assembly
(3)	Condenser Tube
(4)	Evaporator Tube Extension

•	All metal tubing lines should be free of dents or kinks to prevent loss of system capacity due to line restriction.

•	All flexible hose lines should never be bent to a radius of less than four times the diameter of the hose.

•	Unprotected flexible hose lines should never be allowed to come within a distance of 64 mm (2.5 in) of the exhaust manifold, 30 mm (1.2 in) for protected hoses.

•	Flexible hose lines should be inspected regularly for leaks or brittleness and replaced with new lines if deterioration or leaking is found.

•	When disconnecting any fitting in the refrigeration system, the system must first be discharged of all refrigerant. Refer to Refrigerant Recovery and Recharging .

•	Once a refrigerant line is opened to the atmosphere, it must be capped immediately to prevent moisture intrusion.

•	The use of the proper wrenches when making connection on O-ring fittings is important. The opposing fitting must be counter-held to prevent distortion of the lines and/or fittings.

•	Tighten all tubing connections to the specified torque. Too little or too much torques can result in loose or deformed seals. Either condition can result in a refrigerant leak. Refer to Fastener Tightening Specifications .