Some people don’t work on brushed servo motors anymore because they think they’re a thing of the past. While disco might be dead, brushed motors aren’t. If you’ve got Indramat spindle motor problems, there are a few thing you should check as trouble spots. One of the main problems for brushed motors is, well, the brushes.
These need to be checked regularly because they do wear out over time but can also indicate bigger problems. Brushed spindle motors that have heat related problems might keep failing or fail because of poorly fitting brushes. Some things to look for on your Indramat or Rexroth spindle motor brushes include the following items:
Burn, baby burn! Disco inferno! Any time you see a burnt area, that means the brush is either getting electricity too soon and is arcing to the communicator bar or is getting it too late. You’ll need to have the neutral position checked and realigned to fix this problem.
Chips or Breaks
How can you mend a broken heart? While we’re not so great with broken hearts, broken brushes we can handle. When something gets chipped or broken, that means your parts aren’t aligned correctly with each other. Brushes shouldn’t come into contact with the communicator bar in a manner that causes damage. To resolve this issue, you’ll need to check for a high bar or for particles that are floating around inside from past breakages.
Grooves or Lines
You’re outta sight, you’re alright, let’s groove tonight! Or let’s not, in the case of brushed motors. Grooves are typically caused by using the wrong kind of brush but can also indicate running your motor with too light of a load. Make sure to take a look at your communicator too if you see this problem on your brushes because when one part starts to groove, the other does too. It’s a process called threading.
If you’re unsure what to do or don’t know what the problem is, give us a call and we can talk you through it. If we can’t help you solve it on the phone, we’ll make sure you get back up and running as soon as possible with our emergency service. And we promise not sing any more disco songs. At least for now.