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Instruction book
4.5 Oil specifications
Attention
Never mix oils of different brands or types. Use only non-
toxic oils.
4.5.1 Atlas Copco Roto-injectfluid
It is strongly recommended to use Atlas Copco Roto-injectfluid.
This is special oil for screw compressors which keeps the
compressor in excellent condition.
Roto-injectfluid can be ordered in following quantities:
Roto-injectfluid Ordering number
20-litre can 2901 0522 00
209-litre drum 2901 0045 01
4.5.2 Mineral oil
Although Roto-injectfluid is strongly recommended, mineral
oil can be used after taking following precautions:
- the previously used oil should first be drained and the system
flushed
- the oil filter and oil separator should be replaced
- the oil must contain oxidation inhibitors and must have anti-
foam and anti-wear properties
- the viscosity grade and index must be:
Ambient temperature Viscosity Viscosity
grade index
Consistently above
25 degrees celsius . . . . . . . . . . . . ISO VG 68 Minimum 95
Between 25 and
0 degrees celsius . . . . . . . . . . . . . ISO VG 46 Minimum 95
Consult Atlas Copco.
4.6 Oil and oil filter change (Fig. 3.3)
1. Run the compressor until warm. Stop it and close the outlet
valve (1-Figs. 3.4/3.6). Wait a few minutes. Depressurize
the oil system by opening oil filler plug (5) one turn to permit
any pressure to escape.
2. Remove plug (4-Fig. 1.5). Drain the oil by unscrewing plug
(6). Collect the oil in a collector and deliver it to the local
oil collection service. Reinstall the plugs.
3. Remove oil filter (4).
4. Clean the filter seat on the manifold. Oil the gasket of the
new element. Screw the element into place and tighten
firmly by hand.
5. Remove filler plug (5) and fill with oil until the level reaches
the plug. Reinstall and tighten plug (5).
6. Run the compressor for a few minutes. Stop the compressor
and wait a few minutes to allow the oil to settle.
Depressurize the system by unscrewing filler plug (5) one
turn to permit any pressure in the system to escape. Fill the
receiver with oil until the level reaches the filler plug.
Tighten plug (5).
7. Reset the service warning. Consult the User manual for
Elektronikon I and II regulators: Part 1, section 7 for
Elektronikon I or Part 2, section 15 for Elektronikon II.
4.7 Storage after installation
Run the compressor twice a week until warm. Load and unload
the compressor a few times. If the compressor is stored without
running from time to time, protective measures must be taken.
Consult Atlas Copco.
4.8 Service kits
Service kits are available offering the benefits of genuine Atlas
Copco parts while keeping the maintenance budget low. The
kits comprise all parts needed for servicing.
See section 4.5.1 for the ordering number for Atlas Copco Roto-
injectfluid.
Footnote chapter 4
1) Use only authorized parts. Any damage or malfunction caused by the use of unauthorized parts is not covered by Warranty or Product
Liability. The local Sales Company may overrule the maintenance schedule, especially the service intervals, depending on the environmental
and working conditions of the compressor.
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