Chapter 3 Installation
UD-series Screw Compressor 3.2 Installation Works
3-7
3.2.5 Installation
Placement
Check that the surface of the package unit, where the compressor is to be installed, is even and
horizontal. If it is uneven and non-horizontal, tightening the bolts may lead to compressor deformation,
which may prevent normal operation.
Shaft Alignment between the Compressor and Driving Machine
Turn off the main power and control power of the driving machine before shaft
alignment work between the compressor and the driving machine. Be careful so that
the power of instruments does not turn on during shaft alignment work. If the power
turns on during shaft alignment work, the driving machine starts moving and there is a
risk of being entangled with the rotating shaft.
At the time of turning ON/OFF each electric power breaker,
electric shock.
For shaft alignment work between the compressor
designated tools in normal condition. If a worn or damaged tool or a tool unsuitable for
the work is used, there is a risk of being injured.
In the case shaft alignment between this product and the driving machine, be sure that the deviations
within the range shown in the Table 3-4. However, if alignment tolerance of the driving machine side is
more stringent than Table 3-4, please adjust to the request within the allowable value of the driving
machine side.
Table 3–4 Tolerance of Misalignment
3/100 mm (reference: Φ100 mm)
The Figure 3-3 and 3-4 show how to measure offset and angularity when performing the centering of
the shafts of the driving machine and this product using a dedicated hub, a dial gauge and a magnet
stand.
Figure 3-3 Measurement of Offset Figure 3-4 Measurement of Angularity
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