ETS 150/3 EQ disassembly

[scsmith42]

One of my employees used my 150/3 for wet sanding Waterlox, and now it's pretty gummed up in the area above the pad. 

There appears to be some type of aluminum turbine wheel that is inside the brake collar, visible when the sanding pad is removed.  I'm presuming that this is what creates suction when using the sander with a bag instead of a vacuum. It appears to be either pressed on to the motor shaft or perhaps there is a set screw holding it in place (that I can't see due to the gunk).

I'd like to remove the turbine wheel and brake collar for cleaning, but can't figure out how it comes apart.  Can anybody advise me how to disassemble this?

Thanks much.

Scott

 

[AlexThePalex]

In the middle there's a bolt with the two flat sides you have to remove. In my experience this thing is always extremely tight. I guess Festool has special tooling for this. I never got as far as removing it so I don't know what comes after.

You can find an exploded view of your tool in Festool's Ekat spare parts catalog.

In this website's menu it's under Additional Websites > Spare Parts Catalog

[attachimg=1]

[attachimg=2]

 

[scsmith42]

Alex, thank you for the information.  That helps a lot!

Scott

 

[CaptainBarnacles]

Hi,

Did you ever manage to get your sander apart?

I have a problem with the armature on my ETS150 and I'm trying to disassemble it but I am stuck at the same point that you got to in your original post. The bolt which has two flat sides (is that the bottom piece of part no. 26?) just spins around. I've looked at it until I can't see straight and I've looked at the exploded diagrams etc but I still can't figure out how to remove the aluminum turbine.

Does anyone have any suggestions please?

Thanks,
Captain B

 

[AlexThePalex]

The bolt with the falt sides is indeed the bottom part of nr26.

That entire assembly is connected to the rotor, and that's the main part that rotates inside the sander and makes it work. If you want to loosen that bolt with the flat sides, you will have to find or make a tool yourself that keeps the other parts like the aluminium turbine in place.

Like I said above, I assume Festool has some special tooling in their workshop to make this a breeze, but if you try this yourself at home you better be very careful or you can damage other parts.

 

[CaptainBarnacles]

Thank you Alex. I'm not sure if mine is different (or perhaps broken) but when I rotate that bolt the aluminum turbine doesn't rotate with it, in fact nothing seems to rotate with it at all, the bolt just rotates freely.  [unsure]

 

[tjskinny]

Take a look at this,


About time stamp 2:10

Looks like the bolt is screwed into the armature.

 

[CaptainBarnacles]

Perfect! Thank you.

I was thinking that it required all the mechanical components removing from the bottom in order to expose the armature, how wrong I was. Every day is a school day.  [big grin]

 

[AlexThePalex]

ROFL, those modern day internet thruths. You think you're good at something, and there's a 5 year old asian kid who is much better. You want to take something apart, some Russian guy already made a video about it.  [big grin]