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Know your equipment. Read and understand the oper-
ation manual and labels affixed to the unit. Learn it’s
application and limitations as well as the specific po-
tential hazards of your equipment.
ALWAYS WEAR SAFETY GOGGLES.
Ground all equipment. This unit is equipped with an
approved 3 prong grounding-type plug. The green
ground wire should never be connected to a live ter-
minal.
Use the Proper Extension Cords. Use the following
guide for choosing the proper extension cord:
Wire Maximum Length
18 Ga. - 10 feet
16 Ga. - 25 feet
14 Ga. - 50 feet
12 Ga. - 100 feet
Avoid Dangerous Environments. Do not use this unit
in damp locations or expose it to rain. This equipment
should be used in a location with mechanical ventila-
tion that provides at least four air changes per hour.
This equipment should not be used near open con-
tainers of flammable liquids.
Disconnect Unit from Power Supply Before Servicing.
An electrical shock hazard is present when the unit is
disassembled or the cowling is removed.
Repair Damaged Parts. Do not operate the unit with a
defective part. Repair unit to proper operating condi-
tions.
Use Recommended Accessories. Follow instructions
that accompany all accessories. Improper use of ac-
cessories may damage equipment or create a hazard.
Use Caution When Connecting or Disconnecting.
Improper usage may result in refrigerant burns
(frostbite). If a major refrigerant leak occurs, proceed
immediately to a well ventilated area. The hoses in-
cluded with this unit are supplied with couplers that,
when closed, prevent refrigerant vapors from venting
when disconnecting from the automobile.
Only Use the 37880 with the Correct Refrigerants.
The 37880 Series is only approved for R-134a
Operate the Unit within the Design Environment. The
37880 was designed to operate in a temperature range
from 40°F to 120°F. The unit should also not be
operated in a wet location.
WARNING! Refrigerant, in liquid and vapor form, is
a potentially hazardous material. Please consult the
manufacturer’s Material Safety Data Sheet for
additional information and adhere to the following
safety guidelines:
Avoid breathing high concentrations of vapors.
Use with sufficient ventilation to keep operator
exposure below recommended limits, especially in
enclosed and low lying areas.
Avoid contact of liquid refrigerant with the eyes
and prolonged skin exposure.
Wear goggles and protective gloves.
Do not attempt to operate this unit above 120°F
ambient temperature.
Do not allow refrigerants to contact open flame.
Refrigerant decomposition in a flame results in
phosgene gas. Breathing phosgene gas can be
fatal.
FIRST AID: If high concentrations of refrigerant are
inhaled, immediately remove the victim to fresh air.
Call a physician or emergency medical technician.
Keep calm. If not breathing, give artificial respiration.
If breathing is difficult, give oxygen. Do not give
epinephrine or similar drugs.
EYE: In case of liquid contact, immediately flush
eyes with plenty of water. Call a physician.
SKIN: Flush with water. Treat for frostbite, if
necessary, by gently warming the effected area.
CAUTION! All refrigerant hoses, recovery tanks,
refrigerant lines, the 37880, and other vessels
containing refrigerants should be handled as if under
high pressure.
CAUTION! Should be operated by certified personnel.
CAUTION! Avoid breathing A/C refrigerant and lubri-
cant vapor or mist. Exposure may irritate eyes, nose
and throat. To remove HFC-134a from the A/C system,
use service equipment certified to meet the require-
ments of SAE J2788. Additional health and safety
information may be obtained from refrigerant and
lubricant manufacturers.
CAUTION! Do not pressure test or leak test HFC-134a
service equipment and/or vehicle air conditioning
systems with compressed air. Some mixtures of air
and HFC-134a have been shown to be combustible at
elevated pressures. These mixtures, if ignited, may
cause injury or property damage. Additional health
and safety information may be obtained from refriger-
ant and lubricant manufacturers.
General Safety Instructions