Defort DAC-1550 Bedienungsanleitung Seite 10

• Press the switch situated on the upper part into the
«0» position according to the pressure regulator
type ¿ tted on the device (¿ g. 11).
• Put the plug in the plug socket (¿ g. 9) and start the
GB
compressor up by put ting the switch of the pressure
regulator in the «1» position. The operation of the
compressor is fully automatic. The pressure regu-
lator will stop the compressor when the maximum
value has been reached and start it up when the
pressure drops below the minimum value. Normally
the difference in pressure is approx. 2 Bar/29 psi be-
tween the maximum and the minimum value.
For instance - The compressor will stop when it reach-
es 8 Bar (116 psi) (this is the maximum operating pres-
sure) and will start up automatically when the pressure
within the tank has dropped to 6 Bar (87 psi).
The head/cylinder/transmission pipe
assembly may reach high temperatures, so
take care when working close to these parts
and do not touch them to avoid burns
(fig. 12-13).
ADJUSTING THE OPERATING PRESSURE
Fig. 14
It is not necessary continuously to use the maximum
operating pressure, the compressed-air tools often re-
quire less pressure. With regard to compressors sup-
plied with a pressure reduction valve it is necessary to
set the operating pressure properly.
It is possible to set the operating pressure by using the
turning knob on the reduction valve.
• By turning clockwise, the pressure will be in-
creased.
• Byturninganti-clockwise,the pressure will be re-
duced.
The set pressure can be locked by turning the ring un-
der the turning knob in the opposite direction from the
turning knob thereby ¿ xing the turning knob. The set
pressure is visible on the manometer of the reduction
valve.
After use
When the work is done turn On/Off switch into «Off»
position and open the pressure pipe. It should be done
to let the compressed air out of receiver.
4. FAULTS
Air loss
• May be caused by a poor seal of a connection.
Check all connections by wetting them with soap
and water.
The compressor runs but does not compress
Fig. 19
• May be caused by the valves (C-C2) or a gasket
(B1-B2) being broken.
Replace the damaged part
10
The compressor will not start
If the compressor is dif¿ cult to start, check:
• whether the voltage of the mains corresponds to that
on the speci¿ cation plate (¿ g. 10)
• whether electrical extension cables are being used
with afaulty core or length.
• whether the operating environment is too cold (be-
low 0°C).
• whether there is oil in the sump to guarantee lubrica-
tion (¿ g. 8)
• whether there is electricity supply (plug properly
connected, magneto-thermal fuses not broken).
The compressor does not shut off
If the compressor does not shut off when the maximum
pressure has been reached,the safety valve of the tank
will be activated. It is necessary to contact the nearest
authorised Support Service for the repair.
5. MAINTENANCE
Before interfering in any way whatsoever with the com-
pressor, please make sure that:
• The general line switch is in the «0» position.
• The pressure regulator and the switches on the
switch board are switched off in the «0» position.
• The air tank is fully decompressed.
LUBRICATION
It is recommended to disassemble the suction ¿ lter
every 50 operating hours and to clean the ¿ lter element
by blowing it with compressed air (¿ g. 15). It is rec-
ommended that the ¿ lter element is replaced at least
once a year if the compressor is working in a clean
environment; more often if the environment in which
the compressor is situated is dusty.
The compressor makes condensed water which col-
lects in the tank. It is necessary to remove the con-
densed water in the tank at least once a week by open-
ing the drain cock (¿ g. 16) under the tank. Take care
when compressed air is in the bottle because the water
can come out with some force. Recommended pres-
sure max. 1-2 Bar.
The condensed water of the oil lubricated
compressor should not be disposed of in the
sewers or be disposed of in the environment
because it contains oil.
Replacing/topping up oil
The compressor has been supplied with synthetic oil.
It is recommended to fully replace the oil of the pump
system within the ¿ rst 10 operating hours.
• Unscrew the drain plug (gauge) on the sump lid, let
all the oil run out and screw back the plug (¿ g. 17).
• Fill the oil via the upper hole of the sump lid (¿ g. 18)
until the level indicated on the gauge (¿ g. 8) has
been reached.
Check the oil level of the pump system every weekand
if necessary top up.
You should not dispose of the used oil in the
sewer or in the environment