Safety Regulations; Ac442 - Matco Tools AC442 Operation Manual

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6 | AC442 |

2.4

Safety regulations

2.4.1
AC442
Always carefully study and follow all the safety regulations before using
the MATCO product.
Avoid all skin contact with the refrigerant. The low
boiling point of the refrigerant (approx. -30° C) can
lead to frostbite. Should refrigerant come into
contact with the skin, remove any moistened
clothing immediately and rinse the area of skin
affected with generous amounts of water.

Avoid all skin contact with the UV dye. Should UV dye
come into contact with the skin, remove any moistened
clothing immediately and rinse the area affected with
generous amounts of water.

R134a is colorless, with weak characteristic smell and
heavier than air. It may flow into repair pits. Should
refrigerant escape, Provide for sufficient ventilation
(particularly in repair pits) and leave the workshop.
Never inhale refrigerant, dye and oil vapors. The
vapors can irritate the eyes, nose and respiratory
system. If liquid refrigerant or UV dye comes into
contact with the eyes, rinse them thoroughly with
water for 15 minutes. Then obtain medical attention
even if no pain is felt

Never swallow UV dye. Should it be swallowed
inadvertently, never attempt to induce vomiting. Drink
generous amounts of water and obtain medical attention.

Before connecting the AC442 to a vehicle air conditioning
system or an external refrigerant bottle, make sure the
quick-release couplings are not leaking. Only ever use
external refrigerant bottles provided with safety valves
and certified in line with applicable standards.

Before switching off the AC442, make sure all charging
and drainage operations have been completed. This
prevents damage to the unit and reduces the risk of
refrigerant escaping into the environment.
Never use compressed air with R134a. Certain
mixtures of air and R134a are highly flammable.
Such mixtures are a potential hazard and may
lead to fire or explosions and thus cause damage
or injury.

Refrigerant extracted from a vehicle air conditioning
system may be contaminated with moisture, lubricant, dirt
and traces of other gases.

If the refrigerant has been contaminated by being
mixed with other gases, remove the
contaminated refrigerant and add fresh R134a
before using the AC442 for A/C service.

R134a is not to be used in areas in which there is
a danger of explosion. Fire, open flames and
smoking are prohibited.
1901016-85

The AC442 unit should not be exposed to excess
moisture or be operated in wet areas

R134a is not to be mixed with other refrigerants. The
mixing of refrigerants could damage the vehicle air
conditioning system.

De-energizing is only to be performed by a qualified
electrician, a qualified electrician for specific tasks
(hybrid) or a power systems engineer.
If high-voltage components or high-voltage wires
are handled incorrectly, there is a risk of fatal
injury from high voltage and the possible
transmission of current through the body.

Work on vehicles with high-voltage components is only
ever to be performed in a safe de-energized condition by
persons with the minimum qualification "Trained to
perform electrical work".

Even after deactivating a high-voltage vehicle electrical
system, the high-voltage battery may still be live.

Operating condition cannot be established from any
running noise, as the electric machine is silent when
stationary.
In gear positions "P" and "N" the engine or electric
motor may start spontaneously depending on the
charge of the high-voltage battery.

Never open or damage high-voltage batteries.

On vehicles that have been in an accident, never touch
high- voltage components or exposed high-voltage
wires before deactivating the high-voltage vehicle
electrical system.

The AC442 must be constantly monitored when in
operation. Never leave the AC442 unattended when in
operation. Vehicle A/C service using the AC442 must be
prepared and implemented such that the vehicle air
conditioning system circuit does not have to be opened
(for example by removing the radiator or engine).

Position the AC442 on all four wheels on a flat,
vibration- proof surface so that proper operation of the
scales is guaranteed

Vehicle A/C service using the AC442 must be prepared
and implemented such that the vehicle air conditioning
system circuit does not have to be opened (for example
by removing the radiator or engine).

The AC442 can be secured in position by locking
the caster brake.