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‣
Press the dust release valve at the bottom of the air filter housing so that the collected dust/dirt falls
out.
‣
Reassemble the parts in reverse order.
4.4.4
Checking the oil level
‣
Unscrew the plugs (1) from the compressor hous‑
ing and check whether the oil reaches the lower
edge of the threaded holes (2) (see magnified
view).
‣
Correct the oil level as needed.
If the oil level is too high:
The oil flows out of the tell-tale hole.
‣
Catch the oil and dispose of it according to the
legal regulations.
If the oil level is too low:
‣
Top up the oil. To do so, unscrew the cap (3) and
slowly pour oil in until the oil reaches the lower
edge of the threaded hole (2).
Alternatively, pour the oil into the compressor
housing through the threaded hole with the help
of a hose.
CAUTION
ENVIRONMENTAL POLLUTION THROUGH OIL!
Very small quantities of oil are sufficient to make significant amounts of potable water unusable.
‣
During the oil change, make sure that no oil is released into the environment.
‣
Dispose of the used oil in accordance with local regulations.
NOTICE
DAMAGE DUE TO INCORRECT OILS!
Incorrect oils can destroy the compressor.
‣
Only use specified oil (Chapter 1.9 on page 10).
NOTICE
INCORRECT OIL LEVEL!
If the oil level is insufficient, significant tangible damage can occur. If the oil level is excessive, foaming
and, thus, oil leakage can occur.
‣
Observe the fill quantity.
‣
Screw the locking screw back in.
Tightening torque (M20x1.5): 70 Nm
NOTE
Seal ring: DIN 7603 ‑ A21x26 ‑ soft iron.
47757786 A
Maintenance/repair
25
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