Taper Locks

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Check Taper-lok sheaves or couplings for run-out (what you don't know)

Frequently when aligning belt drives with taper-lok bushing-type sheaves, I find that the sheaves does not run true as the shaft is rotated. This is caused by uneven tightening of the bushing bolts (usually 3). The result is- the belts will always be misaligned. The same it true for other taperlok mounted items.

Our corrected procedure is to monitor the sheave faces with a dial indicator while rotating the shaft to show which bolt to take-up. Checking both sheaves avoids questions if you have problems completing the job.

As a quality check with the laser alignment tool, we move the laser to a 2nd position (90 degrees) on the sheave and also reverse the laser & buttons between the sheaves.

Dial indicators are such a valuable tool in everyday repair activities but are seldom used.

Reliability Web Reader tip provided by Wes Allen Lead Analyst Allied Reliability Plainview Texas