II/10
PEM
GB
2.6.5 Draining condensate from pres-
sure vessel
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Dispose of condensate in accordance with
local specifications!
Caution:
Wear safety glasses!
1. Place a suitable vessel under the conden-
sate drain.
2. In order to drain condensate, the vessel
pressure must be 2 - 3 bar.
3. Open condensate drain valve (item 09).
4. Close condensate drain valve again fol-
lowing condensate drainage.
2.6.6 Checking the oil level
• The oil level must be between the top and
bottom marks (oil dipstick/oil inspection
glass) (Figure 7a).
• Correct if necessary.
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If oil is milky, it must be changed immedi-
ately.
2.6.7 Changing/adding oil
1. Allow the compressor to warm up, switch
it off, disconnect the power supply.
2. Pull out the oil filler plug/oil dipstick
(item 03), hold the used oil container un-
der the oil filler plug (item 04), screw
open the oil drain screw, drain used oil
completely.
3. Screw the oil drain screw closed.
4. Add the prescribed quantity of oil.
5. Check the oil level, correct if necessary.
Insert the oil filler plug or oil dipstick.
6. Dispose of used oil according to applica-
ble regulations.
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Recommendation: mineral oil Art. No.
B111002, synthetic oil Art. No. B111006.
No guarantee can be provided if the
wrong oils are used.
Do
not
mix synthetic and mineral oil:
compressor damage is possible!
2.6.8 Check screw fittings
1. Check all screw connections for tight fit
and retighten if necessary.
2. Observe the tightening torques (tighten-
ing torques calculated according to VDI
2230).
2.6.9 Clean intake filter
See Part 1 of the Instruction Manual.
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Do not purge the intake opening. No for-
eign objects may enter.
Never operate the compressor without an
intake filter.
2.6.10 Checking, adjusting the V-belt
tension
V-belt driven compressors:
1. Switch off the petrol engine.
2. Remove the mounting plugs, take off the
belt guard grating.
Checking V-belt tension:
Press down on the V-belt at the top using
your thumb, halfway between the V-belt
discs. The belt should not give more the
width of the V-belt (Figure 8a).
Adjusting V-belt tension:
1. Mark the position of the petrol motor on
the base plate.
2. Unscrew the mounting screws of the mo-
tor (Figure 8b).
3. Move the motor towards the compressor
unit. Take off the V-belt.
4. Push the motor approx. 2 mm parallel
past the mark. Tighten the mounting
screws.
5. Fit the V-belt over the small V-belt disc
first, then stretch it over the large V-belt
disc.
6. Check the V-belt tension and repeat the
process if necessary.
7. Attach the belt guard grating using the
mounting plugs.
2.6.11 Cleaning/replacing the check
valve
1. Unscrew the locking screw (Figure 6a).
2. Clean insert, replace in case of damage,
squeezing or hardening.
3. Clean seat, replace complete check valve
if damaged.
2.6.12 Replacing the safety valve
1. Detach the safety valve (item 11) by un-
screwing it anticlockwise.
2. Apply Loctite® 243 to the thread of the
new safety valve or wind Teflon tape
around the valve.
3. Screw the new safety valve into place by
screwing it clockwise.
2.7 Decommissioning
Observe the safety instructions!
2.7.1 Preservation
Preservation of oil-lubricated compressors is
necessary if the compressor is taken out of
service for a long period (over 6 months) or
