2. Use suitable fixings to screw the blower block, without stress, to a firm and even base.
Details of the anchoring holes are contained in the dimensional drawing in chapter 13.1.
3. Check that the drive shaft turns freely by hand.
4. Remove the flange connection covers. Check interior for dirt and foreign bodies. If necessary,
have the blower block cleaned by an authorised KAESER Service Technician.
5. Fit suitable pipework without stress:
■ Intake line at the intake port,
■ Pressure pipe to the discharge port.
■ Use only elastic pipe connection when connecting the block to permanently installed pipe‐
lines.
■ Support the weight of the pipework so that its weight does not fall on silencers or other
components.
6. Throttling or return of the gas drain openings to the inlet side is only permissible after consulta‐
tion with KAESER.
7. Close any unused openings for injecting cooling fluid.
Discuss with KAESER the type and position of the injection openings.
8. Specify the volume of injected cooling fluid to ensure that the block discharge temperature
won't be exceeded.
6.5 Installing the drive
The blower block may be driven by readily available drives.
Precondition The drive power should be at least 12 % more than required by the block.
1. Drive the block only in the specified direction of rotation.
2. Ensure that the maximum permissible rotor speed is not exceeded.
3. Axial forces acting on the drive shaft are not permitted.
4. Use couplings and pulleys that do not need high axial force for fitting or removal.
5. Use the centre thread on the shaft end for handling pulleys and coupling parts.
6. Use suitable assembly elements to align and fix the block and the drive motor in relation to
each other.
Directly-coupled drive with flexible coupling
1. Ensure that the balance Q < 6.3 at maximum speed.
2. Have the drive output shaft and the block input shaft precisely aligned.
Refer to the coupling manufacturer's technical data for the running tolerances of the coupling.
It is recommended to calculate the critical rotational resonant frequency to avoid impermissi‐
ble vibrations.
Belt drive
1. Ensure that the belt drive out of alignment is no more than ±0.5°.
This applies to the following:
■ Parallelism of the drive shaft axes
■ Run out of the belts because of axial offset
6
Installation
6.5
Installing the drive
22
Assembly and operating manual Blower block
OMEGA 4 B
Number: 9_9533 23 E
