Pellerin Milnor Corporation 57
Figure 16. Use a level to make sure that the pulleys are at the same slope.
A level on the top of two pulleys
Legend
1. Bubble level: Use this tool to
make sure that the slopes of pul-
leys are equal. This is to make
sure that you do not have the
condition in Figure 9 , item 3.
Mechanisms shown in Figure 14
can change the pulley slopes.
2. If the slopes of the pulleys are
equal, the bubble will be in the
same position for each pulley.
The bubbles do not have to be in
the center of the level.
3. A pulley
4. A second pulley on the same
drive
Figure 17. Dial indicator used to find the axial and radial run-out of a pulley.
Axial Run-out (1)
Radial Run-out (2)
Legend
1. Dial indicator in position to
measure axial run-out
2. Dial indicator in position to
measure radial run-out
Drive Assemblies
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