Cleaning, Maintenance And Storage - Scheppach HC100dc Translation Of Original Instruction Manual

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10. Cleaning, maintenance and storage

m Important!
Pull out the power plug before doing any cleaning
and maintenance work on the equipment. Risk of in-
jury from electric shock!
m Important!
Wait until the equipment has cooled down complete-
ly! Risk of burns!
m Important!
Always depressurize the equipment before carrying
out any cleaning and maintenance work! Risk of in-
jury!
10.1 Cleaning
• Keep the equipment free of dirt and dust as far as
possible. Wipe the equipment with a clean cloth or
blow it down with compressed air at low pressure.
• We recommend that you clean the equipment im-
mediately after you use it.
• Clean the equipment regularly with a damp cloth
and some soft soap. Do not use cleaningagents or
solvents; these may be aggressive to the plastic
parts in the equipment. Ensure that no water can
get into the interior of the equipment.
• You must disconnect the hose and any spraying
tools from the compressor before cleaning. Do not
clean the compressor with water, solvents or the
like.
10.2 Maintenance work on the pressure vessel
(Fig. 1)
m Important! To ensure a long service life of the
pressure vessel (8), drain off the condensed water by
opening the drain valve (10) each time after using.
Release the vessel pressure first (see 10.7.1). Open
the drain screw by turning counter-clockwise (looking
at the screw from the bottom of the compressor) so
that all the condensed water can run out of the pres-
sure vessel. Then close the drain screw again (turn
it clockwise). Check the pressure vessel for signs of
rust and damage each time before using. Do not use
the compressor with a damaged or rusty pressure
vessel. If you discover any damage, then please con-
tact the customer service workshop.
m Important!
The condensed water from the pressure vessel will
contain residual oil.
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Dispose of the condensed water in an environmen-
tally compatible manner at a suitable collection point.
10.3 Safety valve (Fig. 3)
The safety valve (17) has been set for the highest
permitted pressure of the pressure vessel. It is not
permitted to adjust the safety valve or remove the
connection lock (17.2) between the exhaust nut (17.1)
and its cap (17.3).
Actuate the safety valve every 30 operating hours
but at least 3 times a year, to ensure that it works
when required. Turn the perforated exhaust nut (17.1)
counterclockwise to open it and use your hands to
pull the valve rod outwards over the perforated ex-
haust nut (17.1) to open the safety valve outlet. Now,
the valve audibly releases air. Then, tighten the ex-
haust nut clockwise again.
10.4 Checking the oil level at regular intervals
(Fig. 11)
Place the compressor on a level and straight surface.
The oil level must be between the MAX and MIN
marks on the oil level window (12).
Oil change: we recommend SAE 15W 40 or equiva-
lent.
The original oil filling must be changed after 10 hours
in operation; thereafter the oil must be drained and
replaced with new oil after every 50 hours in opera-
tion.
10.5 Changing the oil (Fig. 1, 10, 11)
Switch off the engine and pull the mains plug out of
the socket. Remove the oil sealing plug (15). After
releasing any air pressure you can unscrew the oil
drain plug (12) from the compressor pump (13).
To prevent the oil from running out in an uncontrolled
manner, hold a small metal chute under the opening
and collect the oil in a vessel.
If the oil does not drain out completely, we recom-
mend tilting the compressor slightly. When the oil
has drained out, re-fit the oil drain plug (12).
Dispose of the old oil at a drop-off point for old oil.
To fill in the correct quantity of oil, make sure that the
compressor stands on an even surface. Fill new oil
through the oil filler opening (19) until it comes up to
the maximum level. This is marked with a red dot on
the oil level window (12) (Fig. 11). Do not exceed the
maximum filling quantity. Overfilling the equipment
may result in damage. Reinsert the oil sealing plug
(15) into the oil filler opening (19).
10.6 Cleaning the intake filter (Fig. 3, 12, 13)
The intake filter prevents dust and dirt being drawn
in. It is essential to clean this filter after at least every
300 hours in service. A clogged intake filter will de-
crease the compressor's performance dramatically.