Schneider Airsystems UNM STS 660-10-270 Manual De Instrucciones Original página 24

GB
UNM STS/STL
ball valve (item 04), open it and drain
used oil completely.
3. Close the mini ball valve.
4. Add the prescribed quantity of oil.
5. Check the oil level, correct if necessary.
Insert the oil filler plug or hose.
6. Dispose of used oil according to applica-
ble regulations.
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!
2.6.6 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).
2.6.7 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.
2.6.8 Clean the silencer insert
On compressors with a silencer:
See instruction manual, part 1.
2.6.9 Checking, setting and adjusting
the V-belt tension
Preparation:
Turn all mounting plugs 45° and remove,
then 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
II/4
All manuals and user guides at all-guides.com
discs. It may not give more the width of the
V-belt (Figure 7a).
Setting/Adjusting V-belt tension:
See instruction manual, part 1.
2.6.10 Cleaning/replacing the check
1. Unscrew the locking screw (Figure 6a).
2. Clean insert, replace in case of damage,
3. Clean seat, replace complete check valve
2.6.11 Replacing the safety valve
1. Detach the safety valve (item 11) by un-
2. Apply Loctite® 243 to the thread of the
3. Screw the new safety valve into place by
2.7 Decommissioning
Observe the safety instructions!
2.7.1
Oil-lubricated compressors: compressor is
taken out of service for a long period (over 6
months) or is new from the factory and will
not be operated until much later.
1. Replace oil with corrosion inhibitor oil
2. Allow the compressor to warm up, switch
3. Drain the condensate, depressurise the
4. Prior to returning to operation, replace
Store the compressor in a dust-free and dry
area where it is not exposed to high temper-
ature fluctuations.
2.7.2
Dispose of the unit and packaging materials
according to applicable regulations.
valve
squeezing or hardening.
if damaged.
screwing it anticlockwise.
new safety valve or wind Teflon tape
around the valve.
screwing it clockwise.
Preservation
(viscosity SAE 30). See Chap. 2.6.5.
it off, disconnect the power supply.
compressor.
corrosion inhibiting oil with compressor
oil.
Disposal