➤ Do not adjust the safety relief valve.
➤ Immediately replace a defective safety relief valve.
10.12 Checking rotors for contamination
If there is dust in the conveyed medium, this can build up inside the block.
The machine must be isolated from the compressed air network and completely vented be‐
fore undertaking any work on the pressure system.
Precondition The power supply disconnecting device is switched off,
the device is locked off,
the absence of any voltage has been verified.
The machine has cooled down.
Rotating rotors.
Danger of pinching or severing of extremities, especially fingers.
➤ Switch off and lock out the power supply disconnecting device, and verify the absence of
voltage.
1. Disconnect the flange connections and look for contamination inside the block.
2. If necessary, have the blower block cleaned by authorized KAESER SERVICE representative.
10 Maintenance
10.12 Checking rotors for contamination
Number: 9_9572 28 USE
Installation and Operating Manual Rotary lobe blower
HBPI pr
77