Precondition Machine under LOAD deactivated (air receiver under maximum pressure).
Disconnect device secured against being switched on.
Absence of voltage is verified.
The user's shut-off valve between the machine and the air network is closed.
Fig. 28 Checking pressure relief valve on the air receiver
1 Pressure relief valve
2 Knurled knob
WARNING
The pressure relief valve may blow off at any time!
Excessive noise is caused when the pressure relief valve blows off!
There is danger of injury from bursting components and compressed air!
➤ Wear ear and eye protection.
1. Turn the knurled knob on the pressure relief valve anticlockwise until air blows off.
2. Then turn the knurled knob back to its original position.
3. Open the user's shut-off valve between the machine and the air system.
Result The machine can now be started.
Pressure relief valve does not blow off?
➤ Have the defective relief valve replaced by KAESER Service.
10.12 Air receiver maintenance
Material Receptacle
Checking the air receiver
Pressure vessels must be inspected at regular intervals in accordance with legal requirements.
➤ Observe relevant national regulations.
Draining condensate
Some of the moisture contained in the compressed air precipitates out in the air receiver.
10 Maintenance
10.12 Air receiver maintenance
56
Service Manual 2-stage piston compressor
EPC No.: 9_9431_02 E
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