Nidec 22765-01, Руководство пользователя

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Page 15
Two-Bearing Alignment
Follow the tolerances specified by the coupling manufacturer when
they are less than described in this manual.
Use shims, if necessary, between the mounting pad and the base to
properly level and align the generator to the prime mover.
Install the coupling(s) on the generator and engine drive shafts in
accordance with coupling manufacturer installation procedures. Use a
straight edge and a thickness gauge for rough alignment as shown in
Figure 8. Check for angular and parallel alignment as follows:
Angular Alignment: Fasten a dial indicator to one of the coupling
halves, and scribe the position of the dial button on the face of the
opposite coupling half as shown in Figure 3. Rotate both shafts
simultaneously, keeping the finger or button on the indicator at the
reference mark on the coupling hub. Note the reading on the indicator
dial at each one quarter revolution.
A variation of readings at different positions will indicate how the
machine needs to be adjusted to obtain a maximum misalignment of
0.005” (0.127 mm) for each inch of the coupling hub’s radius, total
indicator runout. Place or remove slotted shims from under the front
or rear engine or generator mounting pads and/or shift the front or
back half of one component from side to side until the components are
properly aligned. Tighten the mounting bolts, and recheck alignment.
Figure 8 Rough Alignment
Straight edge
Thickness gauge