Repair Zone has been seeing an influx of newer generation Fanuc Alpha i Series servo motors and drives coming in for repair. An Aerospace parts manufacturer in California sent us this Fanuc A06B-0265-B102 Alpha i servo motor for evaluation because it was increasingly noisey. In our initial evaluation, all testing showed no major damage to it. This motor will receive a standard reconditioning, which includes new bearings and new seals, full cleaning, feedback alignment, testing, etc. The pictorial below follows Scott, a Fanuc specialist, as he takes us through this repair. If you need a repair of your servo equipment, or have any questions, please call 1(989) 922-0043 for immediate service. To browse our Fanuc inventory, go to www.repairzone.com

Connected to our software, Scott measures the accuracy of the encoder counting – it was found to be counting correctly and in factory specifications.

Surge testing the phases in the stator before and after cleaning. If any of the 3 phases were shorted, it would need to be rewound. In this case, all 3 phases were good as well as the insulation strength.

A pre-wash is sprayed onto the windings and stator. Each servo is washed twice; once to remove heavy contamination and a second time it is placed into a parts washer for more thorough cleaning. It is then baked overnight in our oven.

Each servo is run-tested twice, once in the beginning and at the end to finish the repair. It’s run data was good and had 6.0 amps, 215.1 volts.
Love the in-depth walkthrough for this repair! My business has needed some repairs in the past, and this sheds a lot of light on the process. What do you suggest for concrete polishers? There’s a concrete polisher in Utah that we’ve looked into, but do you have any experience with that?
Thanks!
Hi Christian,
Thanks for your question. I do not have any expertise in the area of concrete polishers, but all things servo motors and amplifiers in relation to those I can help! If you have any specific questions about servo equipment, please let me know.
Thanks again!
Jade York