Volkswagen Polo Service & Repair Manual: 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. |
| If dropped, the vessels could be so severely deformed that
they rupture. The refrigerant evaporates immediately, liberating
considerable force. Flying fragments of cylinders can cause
severe injuries. |
| Valves may break off if cylinders are not properly
transported. To protect the valves, cylinders are only to be
transported with protective cap screwed on. |
| Never store in the vicinity of radiators. |
| High temperatures may occur next to radiators. High
temperatures are also accompanied by high pressures and the
maximum permissible vessel pressure may be exceeded. |
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Not Warming Above 50 °C (122 °F)
To avoid possible risk, pressure vessel regulations specify that vessels are
not to be heated to in excess of 50 °C (122 °F).
Heating Warning
| Do not heat with a naked flame under any circumstances.
Localized overheating can cause structural changes in the vessel
material, which then reduce its ability to withstand pressure.
There is also a danger of refrigerant decomposition due to
localized overheating. |
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Empty Containers
| Empty refrigerant vessels must always be sealed to prevent
the ingress of moisture. Moisture causes steel vessels to
corrode. This weakens the vessel walls. In addition, rust
particles entering into refrigeration systems from vessels will
cause malfunctioning. |
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Before performing welding or soldering work on vehicles near
the air conditioning system components, extract the refrigerant
and remove the residue by flushing with c ...
Make sure the shut-off valves are closed before connecting
the charging system to the air conditioning system.
Make sure the process is finishe ...
Other materials:
“2 Color” Visual Indicator, Checking
WARNING
Risk of injury. Follow all Warnings and Safety
Precautions. Refer to
→ Chapter „Warnings and Safety Precautions“.
Visual Indicator General Informatio ...
Valve, Removing and Installing, Metal Valve
Special tools and workshop equipment
required
Torque Wrench -VAG1410-
Perform the Following:
Removing
–
Remove the Tire Pressure Monitoring Sensor. Refer to
...
Lower section of the centre console
Fig. 8 Overview of the lower section of
the centre console
Key for :
Lever for:
Manual gearbox
Automatic gearbox
Stowage compartment in the front centre
console
12-volt socket
Drink holder
Handbrake
Stowage compartment in the centre
armrest
...
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Welding and Soldering on Refrigeration Systems
Extraction and Charging System Safety Regulations