HERKULES 50/8/3 Instructions De Service page 12

Anleitung_50-8-3_SPK7 04.09.2006
GB
on again.
Long supply cables, extensions, cable reels etc.
cause a drop in voltage and can impede motor start-
up. In the case of low temperatures below 0°C,
motor start-up is jeopardized as a result of stiffness.
4
Explanation of the compressed air fittings
1 Pressure switch
2 Safety valve
3 Pressure gauge (to indicate the vessel pressure)
4 Pressure gauge (to indicate the set pressure)
5 Pressure reducing valve (pressure setting)
6 On/Off switch
5
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17:34 Uhr Seite 12
Maintenance and cleaning
● Condensation water
Let out the condensation water daily by opening
the drain valve (bottom of the pressure vessel).
● Safety valve
The safety valve is set to themaximum pressure
of the pressure vessel. It is prohibited to adjust
the safety valve or to remove its lead seal.
To ensure that the safety valve works properly in
the event of an incident you should actuate it
from time to time. To do so, turn the knurled
screw anticlockwise until you can hear
compressed air being blown out. Then turn the
knurled screw clockwise as far as the stop and
tighten by hand.
● Regular oil level checks
The level of oil has to be visible in the sight-glass
between the red check-point mark and the upper
edge of the sight-glass.
Changing the oil:
Recommended grade SAE 15W/40 or equivalent.
The first oil change should be carried out after
100 operating hours. Thereafter you should
drain the oil and replace it with new oil at
intervals of 500 operating hours.
● Changing the oil
Switch off the motor and pull the power plug out
of the socket-outlet. After letting off any air
pressure you can remove the oil drain plug from
the compressor pump by unscrewing. To prevent
the oil escaping out of control, hold a small piece
of metal guttering underneath the drain plug to
direct the oil into a container.If any oil still
remains inside, tilt the compressor a little.
Take the old oil to an official old oil disposal
station.
When the old oil has run out, screw the oil drain
plug/sight-glass back in place.
Use a screwdriver to remove the cap of the oil
filler plug and fill in oil until the level of oil in the
sight-glass reaches the red mark.
Then put the cap back on the oil filler plug.