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. |
|
|
|
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. |
|
|
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. |
|
|
|
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:
Flat Spots
What is a Flat Spot From Standing?
Terms like flat portion, flattening, are also used as a term
for flat spots from standing.
Flat spots from standing cause vibration, like an
incorrectly balanced wheel. It is important ...
Two-Part Thinner
Definition:
Two-Part Thinner -LVE 009 001 A5-
Two-Part Thinner, Long -LVM 009 300 A2-
Two-Part Thinner, Plus -LHA 014 000 A5-
Two-Part Thinner, Special -LVM 009 2 ...
Towing a trailer
First read and observe the introductory information
and safety warnings
Headlight adjustment
Towing a trailer can raise the front end of the vehicle enough for the dipped
beam to blind other road users. Use the headlight range control to lower the light
cone as required. If you do not have ...
© 2016-2026 Copyright www.vwpolo.net
Welding and Soldering on Refrigeration Systems
Extraction and Charging System Safety Regulations