Keep the motor free from dust for optimal cooling.
7.4
Safety valve
3.7 kW compressor module
5.5 kW compressor module
Operating
Operate the safety valve (5) by unscrewing the knurled cap one or two turns. Retighten the cap.
Testing
The valve can be tested on a separate compressed air line.
If the safety valve does not open at the specified pressure, it must be replaced.
No adjustments are allowed. Never run the compressor without safety valve.
7.5 Belt set exchange and tensioning
Important
The belts must be replaced as a set, even if only one of them seems worn.
Use Atlas Copco belts only. The number of the belt set is mentioned in the Parts list.
Instruction book
2920 7140 52 89
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