Fan motor
➤ Have the motor bearings checked by a KAESER Service representative.
10.9 Checking the Coupling
A defective coupling is recognizable by:
■ noisy running,
■ surface cracks,
■ color change.
WARNING
Danger of injury from rotating coupling!
➤ Never switch the machine on without the safety screen in place over the coupling.
Fig. 28 Checking the coupling
1 Safety screen
2 Coupling
Check for uneven or noisy running
Precondition The machine is running
➤ Check the coupling for noisy or uneven running
Make a visual check for damage
Precondition The power supply disconnecting device is switched off.
The disconnecting device is locked in the off position.
A check has been made that no voltage is present.
The machine has cooled down.
1. Remove the securing screws and take off the safety screen.
2. Turn the coupling by hand and look for damage or color change.
3. Refit the safety screen.
4. Close all access doors and replace all enclosure panels.
10 Maintenance
10.9 Checking the Coupling
68
Service Manual Screw Compressor
ASD T Tri-Voltage 9_5721 06 USE
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