When my tools were stolen a good friend gave me this drill which was faulty but allowed me to work until I could buy new. It’s sat in my garage gathering dust, thinking the field winding and the armature would be too expensive to replace. My surprise was there was a permanent magnet for the field. @ £35 for an armature, I’ll be replacing it, hopefully the gearbox won’t present too many damaged parts when I strip it down. We often get similar items at our local Repair Café. I urge you to volunteer, we need more people to stop items going to land fill.

Nice video! Hello from Michigan, US!

Cheers for posting this. Exactly what I needed to find out. 👍

Thanks for the video. I hope it will help me when changing the brushes. Just a thought though. When you dismantled you remove gear box whilst the armature was left in place. When you reassembled you mated the armature to the gearbox before seating the gearbox. I believe you did this to align the two by moving the armature. Couldn't you have reseated the armature and then twisted the chuck to align the armature splines? Good video so thanks for giving me the inspiration to have a go.

I've got the same Drill, Where did you get the spares from? Great Vid btw