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Instruction book
2920 1521 00 30
4 MAINTENANCE
Before carrying out any maintenance or repair:
1. Stop the compressor, switch off the voltage and open the isolating switch.
2. Close the air outlet valve (2-Figs. 1.2/1.4 or 3-Figs. 1.5/1.6) and open the manual drain valve: valve (1-
Fig. 1.9) on Multi or the valve underneath the air receiver, if provided.
4.1 Compressor drive motors
The motor bearings are greased for life.
4.2 Preventive maintenance schedule for the compressor
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.
Carry out the service operations at the period or running hours mentioned below, whichever interval
comes first.
When servicing, replace all disengaged packings, e.g. gaskets, O-rings, washers.
Important
Use only authorized parts. Any damage or malfunction by the use of unauthorized parts is not
covered by Warranty or Product Liability.
Service plans on SF Multi
A number of service operations are grouped in plans, called Service plans I, A, B or D; see the
schedule below.
Each plan has a programmed time interval at which all service actions belonging to that plan are to be
carried out.
When reaching the interval, a message will appear on the screen indicating which Service plans are to
be carried out. After servicing, the intervals are to be reset. For detailed information, consult section
8.3.
Important
Always consult Atlas Copco in case any timer setting should be changed.