Procedure
1. Stop the compressor, close the air outlet valve and switch off the voltage.
2. Remove the filter cover and the filter element. Discard damaged or clogged elements. Clean the
cover.
3. Fit the new element and reinstall the filter cover.
SF 6 has 2 air filters.
6.3
Air cooler
Cleaning
Keep the cooler clean to maintain cooling efficiency. If necessary, remove any dirt with a fibre brush.
Never use a wire brush or metal objects.
Next, clean by air jet in reverse direction of normal flow.
If it is necessary to wash the cooler with a cleansing agent, consult Atlas Copco.
6.4
Drive motor
Instructions
The motor bearings are greased for life and do not require special attention.
Keep the motor free from dust for optimal cooling.
6.5
Safety valve
Testing
Testing shall only be carried out by competent personnel
1. Stop the compressor, close the air outlet valve and switch off the voltage.
2. Depressurize the compressor.
3. Remove the safety valve. See section
for the location of the safety valve (SV).
4. Test the safety valve on a separate compressed air circuit by gradually increasing the pressure. If the
safety valve does not open at the specified pressure, it must be replaced. See section
protection and safety valve settings
for the opening pressure of the safety valve.
No adjustments are allowed.
Never run the compressor without a safety valve.
Instruction book
32
2920 7110 11
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