The motor blew up in my cordless drill so I replaced it with a new RS550, I also repair the original motor. The thrust bearing in the gearbox then let go so I repair that with a detailed description of the gearbox parts.
Thanks for watching! If you have any questions, please let me know. I'll update this comment once I know which of the ring clips fit, for anyone doing this repair themselves!
@@rikda the thread in the end of the chuck, and the locking screw don't connect to the chuck mechanism in any way, so even if you broke something in the chuck it should still go on. Check the threads on the end of the arbour and on the locking screw and make sure they're not damaged or dirty. The other thing is to remember that the chuck screws on normally (right tighty) but the locking screw is a left handed thread so it screw in counterclockwise (left tighty) Hope this helps!
It goes back on but does not lock on. Tipped down, the chuck fall off. Further attention to your informative post, I suspect that there is a circlip that prevents that & I have broken it. Does that sound reasonable?
@@rikda Does the whole arbour fall out? That is, is there a rod still attached to the rear of the chuck? If so then you may have lost the same ring clip that I did in the video. Unfortunately to repair that you will need to disassemble the gearbox as I did in the video. Good luck!
@@grannyflatgarage7599 Yep & nup LOL I'm not attacking that gearbox job LOL It still works I just have to be a bit mindful of it. It's not the only one I have. When it comes to tools, my daughter tells her husband "I know he (Me) will have one, you just have to find it" Thanks again.
The chick is conventional thread (left loosy) it can feel a bit like your going to break it though because it's the plastic of the drill partially holding it steady. If you have an impact driver try putting a hex in it and tightening the chuck onto it then impact it off this is far more effective than trying to twist it.
These drills are designed to fail. If you release the trigger quickly, the controller puts a short circuit across the motor to act as a brake. If you look inside, you will see a large flash. Eventually, this blows the brushes. If you release the trigger slowly, you don't get this huge surge of current, and the brushes last a LOT longer.
