21
Maintenance
10.3 Safety valve (Fig. 3)
The safety valve (19) has been set for the highest permied pressure of the pressure
vessel. It is prohibited to adjust the safety valve or remove its seal. Actuate the safety
valve from me to me to ensure that it works when required. Pull the ring with
sucient force unl you can hear the compressed air being released.
Then release the ring 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 (18).
Oil change: we recommend SAE 15W 40 or equivalent. The original oil lling must be
changed aer 100 hours in operaon; thereaer the oil must be drained and replaced
with new oil aer every 500 hours in operaon.
10.5 Changing the oil (Fig. 1,10,11)
Switch o the engine and pull the mains plug out of the socket. Remove the oil sealing
plug (16). Aer 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 recommend lng the compressor slightly.
When the oil has drained out, re-t the oil drain plug (12).
Dispose of the old oil at a drop-o point for old oil.
To ll in the correct quanty of oil, make sure that the compressor stands on an even
surface. Fill new oil through the oil ller opening (21) unl it comes up to the maximum
level. This is marked with a red dot on the oil level window (18) (Fig. 11). Do not exceed
the maximum lling quanty. Overlling the equipment may result in damage. Reinsert
the oil sealing plug (16) into the oil ller opening (21).
10.6 Cleaning the intake lter (Fig. 8, 12)
The intake lter prevents dust and dirt being drawn in. It is essenal to clean this
lter aer at least every 300 hours in service. A clogged intake lter will decrease the
compressor’s performance dramacally. Remove the air lter (15) by an-clockwise
turning. Open screw (D1) to the remove the intake lter.
Then pull o the lter cover (C). Now you can remove the air lter insert (F) and the
lter housing (D). Carefully tap out the air lter insert, lter cover and lter housing.
Then blow out these parts with compressed air (approx. 3 bar) and reinstall in reverse
order. Aerwards assembling of the air lter (15) in the reverse order.
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