Volkswagen Polo Service & Repair Manual: Extraction System Group Classifications
| At this time, A/C service units for extracting, cleaning and
filling refrigerant for motor vehicle A/C systems are available
from various manufacturers. |
| Mobile extraction and charging systems for filling
compressed-gas vessels permanently connected to the system. |
| The refrigerant or refrigerant/oil mixture is transferred to
compressed gas vessels which are permanently connected to the
mobile systems. In accordance with 3 Para. 5 No. 3 of pressure
vessel regulations, compressed-gas vessels are classified as
pressure vessels in this case. |
| The charging systems require: |
| no expert testing as the gas is transferred to
compressed-gas vessels which are classed as being pressure
vessels. (Systems used for transfer from these pressure vessels
to compressed-gas vessels for supplying to third parties do
require a permit and are subject to mandatory testing). |
 Note
| The A/C service and recycling units used in motor vehicle
workshops are extraction and charging systems not requiring a
permit (Group “3”) but which are only to be operated by
qualified personnel. Instructions for unit operation and
maintenance can be found in the relevant manufacturer's
documentation. |
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At this time, A/C service units for extracting, cleaning and
filling refrigerant for motor vehicle A/C systems are available
from various manufacturers.
...
Other materials:
Instrument overview
Fig. 10 Instrument cluster in the dash
panel: type 1
Fig. 11 Instrument cluster in the dash
panel: type 2
First read and observe the introductory
information and safety warnings
Descriptions of the instruments or :
Rev. counter (running engine speed in revolutions x
1,000 per mi ...
Adhesive Surface Pretreatment when Replacing Laser-Soldered Roofs
Dry sand the cataphoretic primer on the roof adhesive surface
-item 6-
→ Item down to the bare metal using P180 sandpaper.
–
Dry sand the roof pillar adhesive surface
...
Test after driving for 10 minutes
First read and observe the introductory
information and safety warnings
Reconnect the tyre filler hose and check the tyre pressure on the tyre
pressure display ⑥.
1.3 bar (19 psi / 130 kPA) and lower:
Do not drive on! The tyre cannot be sealed adequately
with the breakdown set.
...
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Charging Systems not Requiring a Permit