Regardless of the most effective efforts of the producers, there are people on the market that attempt to restore energy instruments, with [Dean Doherty] being one in every of them. Lately he received a Milwaukee M18 cordless planer in for repairs, which began off with simply changing some dodgy bearings, however ended up with diagnosing a defective controller. Consequently the full restore prices went up from cheap to utterly unreasonable, resulting in a rant on why Milwaukee instruments are horrible to restore.
Among the many signs was the deep-discharged battery, which had only a hair over 7 V whereas unloaded. Query was what had drained the battery so severely. What was clear was that the software was utterly seized after inserting a working battery with only a unhappy high-pitched whine from a stalled motor.
After changing each bearings and grumbling about low-cost bearings, the software had quite a lot of drywall mud cleaned out and was reassembled for a check run. This sadly confirmed that the controller board had been destroyed because of the seized rotor bearing, explaining the drained battery. Changing the controller would have value €60-70 because it comes with your entire deal with meeting, rendering the restore non-viable and a waste.
Maybe the one lesson from this story is that you could be as properly preventively swap a budget bearings in your Milwaukee instruments, to stop seizing and taking out the controller board. That stated, we’d like to see an post-mortem on this controller board fault.
Due to [paulvdh] for the tip.
