Treadmill problems again...

[Edtwozeronine]

I first had issues about 6 months ago with my second hand treadmill tripping the ring part of the way into a session, since then I've sent off my controller board to treadmill doctor co uk. He repaired the board and sent it back after approximately a month.

Since then I've had the a dedicated circuit installed with a 16a RCBO so that if tripping occurs with the treadmill again, it will only effect a dedicated socket and not the ring main as well.

Unfortunately, a month into using the treadmill it's tripping the circuit after about 30 minutes of use. In college I learned of type C and type D RCDs and RCBOs that have different tripping dynamics to usual household type B breakers. Do you think one of these could prevent the tripping problem or is it likely to be something else?

Seems this is fairly wide spread problem having searched the interwebs...

 

[Edtwozeronine]

So, for the 5A fuse at least another 4 one hour sessions. And the same for the 3A fuse. Remember to run it first for an hour 'off load' before each session of running.

Alas, I am not infallible so could be completely off the mark.

Static Zap makes some good remarks on possible causes. It would helpful if you could look at the commutator and brushes and compare them to the guide I pointed you to.

I admire your willpower to use a treadmill - I found them mind numbing.

There's a sparky right across the road, I wonder if he'd have a look at it?

It'll be a long while until I've done all those sessions, guess the thread will sit open though...

The treadmill is a lot easier to use if you can watch YouTube while doing it, just stick on my "watch later" list and hours worth of entertainment! Yes, I went that far to make it appealing! Great for when it's raining too, no excuse not to get some amount of exercise!

The brushes and comutator look smooth as far as I can tell, the brushes smoothly rounded where they've been wearing on the commutator. No horrible scoring/scratching like in some of those pictures, although I can't tell without taking it apart if the brushes have dug grooves into the commutator, like some of the other pictures.

I found these brushes 10 pairs of potentially dubious quality brushes, what am I going to do with the other 9 pairs?

 

[GeorgeCooke]

I think he's kidding George. I'm sure he'll leave the plugtop alone.

Maybe so. The earth pin is part of the plug not its top.

 

[DPG]

Maybe so. The earth pin is part of the plug not its top.

Thanks for the info.

 

[static zap]

I think the dust was just a bit of carbon brush wear....

Apologies just me being cryptic - with the powder .
(I know toner is unhealthy..but less drastic than coal mining)
Damage may be from a previous over heating ,but the dust is part of your enemy.
..Little sparks migrating particle to particle -is what Tracking is all about..

 

[Edtwozeronine]

Maybe so. The earth pin is part of the plug not its top.

To my relief I found out you can simply open the plug with a screwdriver and entirely remove the earth pin, that'll save a lot of hacksaw work!

Now I just have to find a knitting needle to open those pesky shutters for the live and neutral to slot in! Thanks for pointing them out Big Clive!