Harbor Freight Tools 95808 User Manual

ITEM 95808 R-134A Gauge Instruction Sheet

APPLICATION: This gauge measures the level of refrigerant in R-134A AC systems by

checking the low side pressure.

NOTE: It is important that your system is fully charged for maximum cooling, but not overcharged, which could damage the compressor.

DIRECTIONS:

1. Start your engine. Never do this in a garage!

2. Run the air conditioner for 3 minutes.

3. Press the R-134A Gauge onto the low-pressure port of your AC system.

NOTE: The low-pressure port will generally be found on the larger diameter line that becomes cool, located between the compressor and the evaporator. On most late model GM & Ford cars it is located on the accumulator drier. If you can’t locate it, check your vehicle’s service manual.

4. Remove gauge and view reading. Press the button on the side to reset gauge. See

chart below.

LOW 0~25 PSI System may require additional refrigerant.

FILLED 25~45 PSI System has proper amount of refrigerant.

ALERT 45~65 PSI System may be overcharged. DO NOT ADD REFRIGERANT.

DANGER 65 + PSI Your system may have other problems.

WARNING: Be very careful when working on a running engine. Hot parts can cause BURN

HAZARD. Never wear jewelry or loose clothing that can be entangled in moving parts.

IMPORTANT: When adding refrigerant, check system’s pressure after adding one can. If the pressure has not changed, do not add more refrigerant. Pressures listed are based on averages for most vehicles at ambient temperatures of 75 to 85 degrees Fahrenheit. They will be higher at temperatures above 85° and lower at temperatures below 75 degrees.

To prevent serious lnjury or death: All Technicians opening the refrigeration circuit in automotive air conditioning

systems MUST be certiﬁed in a refrigerant recovery and recycling procedures in compliance with Section 609 of the Clean Air Act Amendments of 1990.

For additional information regarding ozone depletion and air conditioning service regulations, please visit EPA’s web site: http://www.spa.gov/ozone

Service of air conditioning systems can result in overﬁlling, creating a serious EXPLOSION HAZARD, if done by an untrained or inexperienced technician.

CARBON MONOXIDE HAZARD! Engine use in enclosed area will build up invisible, odorless, carbon monoxide that can cause SERIOUS INJURY or DEATH.

Engine must be running to operate AC. Run engine only in well-ventilated area.

For technical questions please call 1-800-444-3353.