Most "alignment technicians" are temporary appointments. They are mechanics, or millrights, or machine repairmen, or electricians, or any other regular job position who couldn't say no. "As long as you are over there, can you do the coupling alignment?"
Using an alignment system to perform a shaft alignment is more than just having the Laser, or the dial indicators, or the "kit". For one thing, you probably need more training. Although a Laser can be more accurate and enable a "better" shaft alignment, it is still only as good as the technician. Somebody with a dual, dial indicator set can align shafts as good, or better than, someone with a laser. Having the right tools can make the difference.
It starts with a good selection of shims. Good, clean shims are a must. No rusted, bent, or damaged shim pieces. That is why stainless steel is the universal preference for shims. The motor hold-down bolts are also important. Replace any hardware that is not "like-new" condition.
Good quality hand tools are also required. A right sized pry bar, needle nosed pliers, box end wrenches, or socket set, of the correct size are all necessary to add or remove shims. For horizontal movement, permanently mounted adjusting bolts are best, but too often not installed. A large C-clamp can work well for larger motors, or "clamp-on" adjustment systems are good. But if you need to use a hammer, be sure it is a dead blow! At the very least, when using a steel "sledge", hit a block of wood alongside the motor foot.
It doesn't matter whether the technician is using an expensive Laser, dial indicators, or a straight edge & calipers to do the alignment, they must be adequately trained & experienced. I've seen experienced technicians use a straight edge to align shafts closer to tolerance than some people do using a laser.
The efficiency of your PM program comes down to the quality of your tools and the training of your technicians. Invest in PM, it will save you money!
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--- Bill Snyder