VW Polo manuals

Volkswagen Polo Service & Repair Manual: Extraction and Charging System Safety Regulations

Make sure the shut-off valves are closed before connecting the charging system to the air conditioning system.
Make sure the process is finished before disconnecting the charging system from the A/C system. This prevents any refrigerant from escaping into the atmosphere.
Once the purified refrigerant from the charging system has been transferred to an external compressed-gas cylinder, close the hand shut-off valves at the cylinder and charging system.
Do not expose charging system to moisture or use it in a wet environment.
Disconnect from power supply before performing service work on the charging system.
Never use an extension cable on account of the fire hazard. If the use of an extension cable is unavoidable, the minimum cross-section should be 2.5 mm2.
In case of fire, remove the external cylinder.
Entrained oil from the air conditioning system drawn by the suction unit into the measurement vessel supplied is subsequently to be transferred to a sealed container as it contains a small quantity of refrigerant. It must not be released into the environment.
Following shutdown, A/C service station is to be secured to stop it rolling away.
   
Handling Pressure Vessels
Secure vessels to prevent them falling over! Secure upright cylinders to stop them falling over and cylinders lying flat to stop them rolling away. ...

A/C System and Refrigerant R134a Safety Precautions
A/C Service Station -VAS6007A- (and further or current A/C Service Station) Refer to the Workshop Equipment Catalog. ...

Other materials:

Refrigerant R134a Vapor Pressure Table
The vapor pressure table for every refrigerant is published in literature for refrigeration system engineers. This table makes it possible to determine the vapor pressure acting on the column of liquid in a vessel if the temperature of the vessel is know ...

A/C System, Operating after Charging
  Caution If it is suspected that chemicals were added to the refrigerant circuit to seal leaks, do not connect the A/C service station and do not extract the refrigerant. ...

Two-Part Epoxy Primer Filler
Definition: Two-Part Epoxy Primer Filler -LLS MAX 220 M1-, beige (250 ml) Two-Part Epoxy Primer Filler -LLS MAX 220 M2-, beige (400 ml) Edition 03/2013 Product De ...

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