RAM 3500 HD Truck 4WD L6-6.7L DSL Turbo VIN A (2007)
Hose/Line HVAC: Service Precautions
Warning
WARNING
WARNING: The A/C system contains refrigerant under high pressure. Repairs should only be performed by qualified service personnel.
Serious or fatal injury may result from improper service procedures.
WARNING: Avoid breathing the refrigerant and refrigerant oil vapor or mist. Exposure may irritate the eyes, nose, and/or throat. Wear eye
protection when servicing the A/C refrigerant system. Serious eye injury can result from direct contact with the refrigerant. If eye contact
occurs, seek medical attention immediately.
WARNING: Do not expose the refrigerant to open flame. Poisonous gas is created when refrigerant is burned. An electronic leak detector is
recommended. Serious or fatal injury may result from improper service procedures.
WARNING: If accidental A/C system discharge occurs, ventilate the work area before resuming service. Large amounts of refrigerant released
in a closed work area will displace the oxygen and cause suffocation and serious or fatal injury.
WARNING: The evaporation rate of R-134a refrigerant at average temperature and altitude is extremely high. As a result, anything that
comes in contact with the refrigerant will freeze. Always protect the skin or delicate objects from direct contact with the refrigerant.
WARNING: The R-134a service equipment or the vehicle refrigerant system should not be pressure tested or leak tested with compressed air.
Some mixtures of air and R-134a have been shown to be combustible at elevated pressures. These mixtures are potentially dangerous, and may
result in fire or explosion causing property damage and serious or fatal injury.
WARNING: The engine cooling system is designed to develop internal pressures up to 145 kilo pascals (21 pounds per square inch). Do not
remove or loosen the coolant pressure cap, cylinder block drain plugs, radiator drain, radiator hoses, heater hoses, or hose clamps while the engine
cooling system is hot and under pressure. Allow the vehicle to cool for a minimum of 15 minutes before opening the cooling system for service. Failure
to observe this warning can result in serious burns from the heated engine coolant.
