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Instruction book
4. Shut off and depressurize the part of the air net which is
connected to the outlet valve. Disconnect the compressor
air outlet pipe from the air net.
5. Isolate and disconnect the water system from the cooling
water net.
6. Drain the oil, water and condensate circuits.
7. Disconnect the condensate piping from the condensate net.
Footnotes chapter 3
1) Consult User manual for Elektronikon regulator, section
“Programmable settings”.
2) Air-cooled compressors only.
3) Programmable.
4) Consult User manual for Elektronikon regulator, section
“Modifying protection settings”.
5) The compressor is automatically started and stopped if these start/
stop commands are programmed and activated; consult section
1.3.1.
6) If the function <<More>> is not indicated on the bottom line of
display (4-Fig. 1.9), press key <<Menu>> (5) until function
<<Main>> appears above key (F1), then press the key <<Main>>.
7) For water-cooled compressors.
8) For air-cooled compressors.
9) If the <<Load>> or <<Unld>> (unload) function is not indicated
on the bottom line of display (4), press key <<Menu>> (5) until
the function <<Main>> appears above key (F1), then press the
key <<Main>>.
10) Optional.
11) Using key <<Rset>> in submenu <<Service>>: see User manual
for Elektronikon regulator, section “Service submenu”.
4 Maintenance
Attention
Before carrying out any maintenance or repair on the
compressor, press stop button (9-Fig. 1.9), wait until the
compressor has stopped (approx. 30 seconds), press emergency
stop button (S3) and switch off the voltage. Close the air outlet
valve and depressurize the air system. Apply all relevant safety
precautions, including those mentioned in this book.
The air outlet valve can be locked during maintenance or repair
as follows:
- Close the valve.
- Remove the bolt fixing the handle.
- Lift the handle and turn it until the slot of the handle fits
over the blocking edge on the valve body.
- Lock the handle using the special bolt and wrench delivered
loose with the compressor.
4.1 Drive motor (M1)
For SIEMENS motors, the bearings must be regreased every
4,000 operating hours preferably with grease ESSO UNIREX
N3. Quantity: 40 g.
For ABB motors, the bearings must be regreased every 4,000
operating hours 3) with a high-temperature ball bearing grease
ASONIC HQ 72-102. Quantity: 16 g per bearing. The
lubrication points are marked. See section 4.6.
4.2 Preventive maintenance schedule for
the compressor 1)
Attention
For overhauling or carrying out preventive maintenance, service
kits are available. See section 4.6. Atlas Copco offers several
types of Service contracts, relieving you of all preventive
maintenance work. For more details, consult your nearest Atlas
Copco representative.
The schedule comprises a summary of the maintenance
instructions. Read the respective section before taking
maintenance measures. The “longer interval” checks must
also include the “shorter interval” checks. When servicing,
replace all disengaged packings, e.g. gaskets, O-rings, washers.
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