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. |
|
|
|
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 Service Station -VAS6007A- (and further or current A/C
Service Station)
Refer to the Workshop Equipment Catalog.
...
Other materials:
A/C Refrigerant High Pressure Switch -F23
Note
For switching pressures, removing and installing switches
and switch arrangement and version, see vehicle-specific
refrigerant circuit.
Refer to
→ Rep. Gr.87.
...
Heel and Toe Wear
Heel-and-toe wear is step-like wear of individual tread
blocks, due to which an increased rolling noise can develop. The
heel-and-toe wear is caused by the uneven distortion of the
tread blocks in the contact patch. Heel-and-toe wear appears in
more extr ...
Tyre lettering
Fig. 149 International tyre lettering
First read and observe the introductory information
and safety warnings
Tyre lettering (example)
Meaning
①
Product name
Individual tyre lettering from manufacturer.
②
DO ...
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Handling Pressure Vessels
A/C System and Refrigerant R134a Safety Precautions