Schneider Airsystems UNM 660-10-90 D Manual De Instrucciones Original página 33

2.6.3 Clean the filter pressure re-
ducer insert
1. Depressurise the vessel of the filter pres-
sure reducer.
2. Hold a suitable vessel under the conden-
sate drain. Drain condensate.
3. Remove the vessel of the filter pressure
reducer. Unscrew the mounting screw of
the filter insert by screwing anticlockwise
(Figure 4a).
4. Remove the filter insert, clean in soapy
water (max. 50 °C).
5. Installation is in reverse order.
2.6.4 Draining condensate from
filter pressure reducer
Draining semi-automatically: Rotate the
condensate drain valve 1/4 turn anticlock-
wise. Under 1 bar: condensate drains. (Fig-
ure 4a)
Draining manually: Rotate the condensate
drain valve clockwise and push it up. Con-
densate drains.
2.6.5 Draining condensate from
pressure vessel
Condensate is a water pollutant. Dispose
of it according to applicable regulations!
Important: 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
For compressors with an oil dipstick, pull the
dipstick out.
1. The oil level must be between the top
and bottom marks (oil dipstick/oil in-
spection glass) (Figure 7a).
2. Correct if necessary.
In very unfavourable conditions, condensate
may find its way into the oil. This can be
identified by milky oil. In this case, the oil
must be changed immediately.
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 or 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.
As the mineral oil, we recommend Art.
No. B111002, synthetic oil Art. No.
B111006. Using incorrect oils shall void
the warranty.
Mixing synthetic and mineral oil can dam-
age the compressor!
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 Cleaning the intake filter
1. Unscrew the intake filter. (Fig. 5a)
2. Clean the filter insert using the blow gun,
exchange the filter insert if necessary.
3. Screw the intake filter back on.
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 compressor. Disconnect
the power supply.
Checking V-belt tension:
Using a suitable blunt tool (spanner wrench),
press V-belt at top centrally and downwards
between V-belt discs. It may not give more
the width of the V-belt (Figure 8a).
GB
UNM
II/13