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3. Maintenance instructions
3. Maintenance instructions
3.1 Before maintenance
1. Stop the compressor and make sure that there is no pressure in the receiver. Wait for 2
minutes after stopping for the blow-down function to empty the receiver.
2. Turn the power off at the main switch and make sure that the compressor cannot be
accidentally started.
3. Close the shut-off valve between the compressed air network and the compressor.
4. Open the pressure relief valve’s cap with 4 to 5 turns.
3.2 After maintenance
1. Close the pressure relief valve.
2. Open the shut-off valve between the compressed air network and the compressor.
3. Start the compressor.
Maintenance and service operations other than those described in this manual must be left to service
personnel authorized by Gardner Denver.
Always wear protective clothes and gloves during the maintenance.
Use only original Gardner Denver spare parts. The use of other spare parts may cause compressor damage.
Before any maintenance operations, switch off the compressor with the main switch and make sure that the
compressor cannot be accidentally started.
There are hot surfaces in the compressor immediately after stopping.
The space between the discharge valve and the system shut-off valve stays under pressure when the
compressor is stopped and the shut-off valve is closed. Release the pressure for example through a water
drain.
