Safety Precaution
1. Read this manual before using the unit to become familiar with its specifications and operation.
2. The operator must be familiar with repair and maintenance of air conditioning to avoid damaging
equipment and mobile refrigeration systems.
3. Always wear protective gloves and safety goggles when working. Contact with refrigerant may
cause injury. Never operate the unit near any flame or high source! Do not expose this equipment
directly under sunshine or rainfall. Avoid any contact with corrosive liquid or gas.
4. The equipment is approved only for the R134a air conditioning system, refrigerant of other types
is not allowed.
5. Each time before starting the machine, check the type of the refrigerant used by the car air
conditioning and switch off the engine.
6. The actual capacity of refrigerant cylinder should not be more than 80% of its maximum (8 kg)
to prevent any serious accident caused by extra pressure of external factors.
7. To ensure the refill function, refrigerant cylinder must contain no less than 3kg refrigerant,
otherwise the refill may fail.
8. Bubbles are always produced while discharging refrigerant oil of automotive compressor. After
bubbles disappear, refill refrigerant oil in accordance with the discharge quantity. Do not overfill!
9. Check the oil level and quality of the vacuum pump regularly. Operation without refrigerant oil is
strictly prohibited.
10. Recycling procedure should be run less than 10 times per hour, otherwise compressor may be
damaged.
11. In routine maintenance, attention should be paid to maintain the regular oil level of vacuum
pump(observe by opening the unit’s main entrance).
12. Equipment contains electronic precision control components. Please do not disassemble or repair
without permission.
13. If needed, please perform the maintenance under the guidance of a professional.
14. Precision measurement components are contained. Please do not crash, beat or knock down the
equipment.
15. The product uses a 220V power supply. Please ensure electrical safety during product operation
or service.
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