• Professionally touch up damaged painted surfaces.
• Observe the information provided in Chapter Aligning and mounting (Page69)
5.4 Alignment and fastening
Observe the following when aligning and mounting:
• Ensure a at and uniform contact surface for foot and ange 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 installation-related resonances with the rotating frequency and twice the line
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.
5.4.1 Repainting/touching up the paint nish of explosion-protected machines
Note
Repainting/touching up the paint nish of explosion-protected machines
For explosion-protected machines, observe the information in Chapter Repainting/touching up
(Page126).
5.4.2 Measures for alignment and mounting
The following measures are required in order to compensate any radial oset 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).
Assembly
5.4Alignment and fastening
1MB..1/2/3/4 - shaft heights 63 ... 355
Operating Instructions, 11/2023, A5E52779900A 69
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