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Assembly
5.5 Alignment and fastening
5.4.5
Foot mounting
Note
Only authorized retrofit partners must be employed to relocate the bolted on mounting feet at
the machine enclosure.
After attaching the mounting feet, you must note the following in order to avoid stressing and
deforming the machine.
• Ensure that the foot mounting surfaces are aligned in one plane and are parallel to the
machine shaft.
• Post-machine the foot mounting surfaces or use thin shims, for example.
• Professionally touch up damaged painted surfaces.
• Observe the information provided in Chapter Aligning and mounting
5.5
Alignment and fastening
Carefully comply with the following when aligning and fastening:
• Ensure a flat and uniform contact surface for foot and flange mounting.
• When mounting on the wall, support the machine from below, e.g. using a bracket, or bolt
it.
• Precisely align the machine when couplings are used.
• Ensure that the mounting surfaces are clean and free of any dirt.
• Remove any anti-corrosion protection using white spirit.
• Avoid mounting-related resonance effects with the rotational frequency.
• Note any unusual noise when the rotor is manually turned.
• Check the direction of rotation with the motor uncoupled.
• Avoid rigid couplings.
• Repair any damage to the paint, this must be done immediately and correctly.
The following measures are required in order to compensate any radial offset at the coupling and
to horizontally adjust the electrical machine with respect to the driven load:
• Vertical positioning
For vertical mounting positions, avoid deforming the machines by placing shims under the
mounting feet. Keep the number of shims low; only use a few stacked shims.
• Horizontal positioning
To position the machine horizontally, shift it sideways on the foundation and ensure that the
axial position is maintained (angularity error).
• When positioning the motor, ensure that a uniform axial gap is maintained around the
coupling.
48
Operating Instructions, 07/2020, A5E46712792A
1FU9
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