Basic Safety

BASICS WHEN WORKING ON REFRIGERANT SYSTEM (R-134A)

CAUTION

- Keep work area and all tools clean.

- Use only tools, equipment and parts specified for use with R-134a.

- Always wear protective glasses and gloves when working on A/C refrigerant system.

- Switch on existing exhaust/ventilation systems when working on the refrigerant system.

- Discharge A/C system before removing any A/C refrigerant system component.

- Always use an Underwriter's Laboratory (UL) approved refrigerant/recovery/recycling/recharging unit such as Kent-Moore ACR4, or equivalent, whenever discharging an R-134a A/C system.

- Immediately plug open connections on A/C components to prevent dirt and moisture contamination. Likewise, DO NOT remove new component from packaging until ready to install. Immediately tighten component connections after installation.

CAUTION

- Always replace O-rings, DO NOT reuse. Use only the correct size and type of O-rings specified for use with R-134a refrigerant. Lubricate 0-ring with refrigerant oil before installing.

- Use only the specified PAG oil from a sealed container and ALWAYS reseal oil container immediately after use. DO NOT use oil if it has become contaminated with moisture or if oil container has been left open.

- Always reinstall cap(s) over A/C service valve(s).

- DO NOT flush refrigerant system with R-11.

- Evacuate refrigerant system for a minimum of 30 minutes.

^ After system recharge, manually rotate A/C compressor approx. 10 turns before starting engine. Start engine with A/C OFF After idle speed has stabilized, switch A/C ON and let engine idle (compressor running) for a minimum of two minutes before raising engine speed.

- DO NOT top-off a charged refrigerant system. Instead, discharge, evacuate and recharge system.

Note!

^ For information on A/C wiring see applicable wiring diagram.

- Do not allow refrigerant oil to come in contact with engine oil or transmission fluid (for example when disposing). Dispose of used PAG refrigerant all separately following laws governing hazardous waste disposal.

^ See also A/C refrigerant system safety measures section.

^ Green label in engine compartment indicates A/C system is charged with refrigerant R-134a.

^ Only a high pressure service valve is used for A/C system servicing. A low pressure service valve is not installed in the A/C system. Perform all A/C system service operations (i.e discharging, evacuating, recharging) through the high pressure service valve only.