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11.2 Damaged electrical connection cable
The insulation on electrical connection cables is often
damaged.
This may have the following causes:
• Pressure points, where connection cables are
passed through windows or doors.
• Kinks where the connection cable has been improp-
erly fastened or routed.
• Places where the connection cables have been cut
due to being driven over.
• Insulation damage due to being ripped out of the wall
outlet.
• Cracks due to the insulation ageing.
Such damaged electrical connection cables must not
be used and are life-threatening due to the insulation
damage.
Check the electrical connection cables for damage
regularly. Ensure that the connection cables are dis-
connected from electrical power when checking for
damage.
Electrical connection cables must comply with the ap-
plicable VDE and DIN provisions. Only use connection
cables of the same designation.
The printing of the type designation on the connection
cable is mandatory.
11.3 AC motor
• The mains voltage must be 220 ‒ 240 V~ 50 Hz.
• Extension cables up to 25 m long must have a
cross-section of 1.5 mm².
Connection type X
If the mains connection cable of this product is dam-
aged, it must be replaced by a specially prepared
mains connection cable which can be obtained from
the manufacturer or its service department.
12. Cleaning, maintenance and storage
m Attention!
Pull out the mains plug before carrying out any clean-
ing or maintenance work! Danger of injury due to elec-
tric shocks!
m Attention!
Wait until the device has cooled down completely! Dan-
ger of burning!
m Attention!
Depressurise the device before carrying out any clean-
ing or maintenance work! Danger of injury!
12.1 Cleaning
• Keep the device as free of dust and dirt as possible.
Rub the device clean with a clean cloth or blow it off
with compressed air at low pressure.
• We recommend that you clean the device directly
after every use.
• Clean the device at regular intervals using a damp
cloth and a little soft soap. Do not use aggressive
cleaning agents or solvents; they could attack the
plastic parts of the device. Make sure that no water
can penetrate the device interior.
• The hose and injection tools must be disconnected
from the compressor before cleaning. The compres-
sor must not be cleaned with water, solvents or similar.
12.2 Maintaining the pressure vessel (fig. 1)
Attention!
To ensure a long service life for the pressure vessel (9),
drain off the condensate after each use by opening the
drain screw (11).
Release the vessel pressure beforehand (see 12.6.1).
The drain screw (11) is opened by turning it counter-
clockwise (when looking at the screw on the bottom of
the compressor) so that the condensate can be com-
pletely drained out of the pressure vessel (9).
Then close the drain screw (11) again (turn clockwise).
Check the pressure vessel (9) for rust and damage
each time before use.
The compressor shall not be operated if the pressure
vessel (9) is damaged or rusty.
If you discover damage, please contact the customer
service workshop.
12.3 Safety valve (Fig. 2)
The safety valve (7) is set to the maximum permissible
pressure of the pressure vessel (9). It is not permitted to
adjust the safety valve (7) or to remove the connection
lock (7b) between the drain nut (7a) and its cap (7c). Ac-
tuate the safety (7) valve every 30 operating hours but at
least 3 times a year to ensure that it works when required.
Turn the perforated exhaust nut (7a) anti-clockwise to
open it and use your hands to pull the valve rod out-
wards over the perforated exhaust nut (7a) to open the
outlet of the safety valve (7). Now, the valve audibly
releases air. Then, tighten the exhaust nut (7a) clock-
wise again.
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