70
Pellerin Milnor Corporation
The pulleys must stay aligned when you adjust the belt
tension
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Some tension mechanisms do not have an effect on pulley and shaft requirements. Pulleys will
stay aligned when you adjust them.
is an example of these. Where tension mechanisms
are a pair of threaded rods, you must adjust the nut, on each rod carefully. If not, the pulleys will
not stay aligned. Examples of this type are shown in
Figure 20.
A Tension Mechanism that will not Change the Angle of the Pulleys
Figure 21.
Some Pairs of Tension Mechanisms that Can Change the Angle of the Pulleys
How to Do Maintenance on Pulleys and Belts
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Table 23.
Typical Tools for Pulley and Belt Maintenance
Tool
Function
Related Data
Torque wrench
Make the bushing bolts the same
torque to get the minimum axial
run-out.
, item 2
Laser, straight
edge, or string
Align pulleys
Tools are listed in order of preference.
and
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