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Silverline L-S20 Mode D'emploi page 6

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  • FRANÇAIS, page 11
Preventive compressor maintenance
Check oil level. During standstill
the correct level is between the
maximum and the minimum
indications. Use only genuine
SE-32 synthetic oil. Do not overfill
(fig. 5).
Drain condensate from air receiver
(at a pressure of max. 2 bar/30 psi)
(fig. 6). If fitted with auto drain,
this will take place automatically,
however, drain bottle has to be
emptied.
If compressor is fitted with outlet
filter, check and empty for water by
pressing the black button. If fitted
with auto drain, this will take place
automatically.
Check compressor, air tubes and
equipment for leaks, and check the
pumping time.
Inspect and replace intake filter, if
necessary.
Clean the compressor with a soft,
damp cloth. Dust and dirt prevent
cooling.
Check the O-ring in the non-return
valve and replace if necessary (fig.
10) Note! Empty receiver of air be-
fore dismounting.
Check filter and filter elements for
optimum efficiency.
Test the safety valve by gently
pulling the ring with pressure in the
receiver (fig. 7).
Oil change
In connection with repair of model L-S motors, e.g. change of
valve plate or other internal motor parts or in case the compres-
sor is installed in a very dusty environment, oil change may be
necessary. Proceed as follows:
1. Remove the ribbed cover by loosening the 4 screws (fig. 8).
2. Tilt the motor towards side with outlet and at the same time
hold the internal motor parts in place with hand. Pour all oil out
of housing (fig. 8). In case of dirt particles at the bottom of the
motor housing, clean with a rag.
Note!
Waste oil is to be handled according to the environmental
rules in force in the country.
3. Tilt the motor back and fill with genuine synthetic oil SE-32
(approx. 0.6l) (fig. 8).
4
4. Clean the edge of casing and cover. Check the O-ring of the
ribbed cover.
Weekly Monthly
Annually
5. Replace the ribbed cover and check during operation that the
O-ring is placed correctly to ensure a 100% tight closing betwe-
en housing and cover.
*
Important!
Always use genuine SE-s32 ynthetic oil as other types of oil
may cause serious mechanical damage to the compressor.
Consequently, the warranty only applies if genuine oil is
used.
Check the pumping time
*
The pumping time indicates the condition of the compressor pro-
vided that there are no leaks in the system where the compres-
sed air may leak.
Test the compressor as follows:
1. Empty the air receiver of compressed air (the pressure gauge
*
shows 0 bar).
2. Close the outlet on the air receiver and check that the drain
cock is closed.
3. Start the compressor and note how long it takes until it swit-
*
ches off.
Make sure that the pressure in the air receiver is 8 bar/116 psi
as deviations may indicate the wrong results (see technical de-
*
tails).
*
Important!
Always test the compressor when cold as the time indica-
ted refers to the pumping time of a cold compressor. The
pumping time of a warm compressor is much longer and
*
consequently, the result would be misleading.
Fault finding and repair
*
Important!
Switch off and isolate from electrical supply before
*
removing any parts from the compressor.
Empty air receiver of air before dismantling any parts
of compressor unit's pressure system.
1. Compressor does not start:
a) No power from mains. Check fuses and plug.
b) Breakage or loose joints in electrical connections.
c) The starting relay is defective. Contact your distributor.
d) The pressure switch is defective and does not switch on
the compressor.
e) The thermal protection has switched off the compressor due
to overheating. When cooled the compressor will automatically
turn on at a suitable operation temperature. Go through the po-
ints in section 4.
f) Pressure in the air receiver is too high for activation of the
pressure switch. The pressure switch makes circuit only when
pressure has dropped to preset start pressure. Empty the recei-
ver.

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