Festo Belt Drives 2, Промышленное обслуживание

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Job Sheet 3 – Variable-Speed Belt Drives
52
© Festo Didactic 54977-3C
49. Move the pillow block bearings to the positions shown in Figure 40.
Figure 40. Second workstation setup for Job Sheet 3.
50. Evenly move the pillow block bearings as far as possible from the motor until
they can no longer be moved further. This will ease the tensioning of the belt
that will be performed later in this job.
51.
Verify the vertical angular alignment by laying a combination square against
the face of the driving pulley. Note the position of the bubble.
52. Lay the combination square against the face of the driven pulley and note the
position of the bubble.
53.
Adjust the vertical angular alignment so that the position of the bubble on the
driven pulley coincides with its position on the driving pulley. Insert shims
under the pillow block bearings as required.
a
The bubble does not need to be perfectly centered, but it must be at the same
position for both pulleys.
54. Perform the Variable-pitch pulley alignment procedure.
55. Adjust the belt tension using the belt tension tester, and the motor mounting
base to the recommended deflection force shown in Table 7 above.
56.
Perform the Start-up procedure.
57. Perform the Testing the system procedure.
7.5 cm
63.0 cm
13 cm
24.5 cm
34.5 cm