Rotex 150 Centring Arbor Help

[paulo]

Hi

Wonder if anybody can help. 

I recently removed the centring arbor on my Rotex 150, (the reason why I did this is irrelevant).  Unfortunately the various washers dropped and I am now unsure what order they should go back in.  I've put them back together but I do not want to risk damaging the sander by potentially using it with the washers in the wrong configuration.  Could somebody with a relatively new  RO150 please help me?

Thanks

Paulo

 

[Mike Goetzke]

Welcome to the FOG - maybe try a google search?
https://www.mmtoolparts.com/store/media/diagram/files/RO150-FEQ_493975.pdf

 

[guybo]

maybe?[attachimg=1]

 

[paulo]

Thanks for those pointers to the diagram.  My "Googling" had brought it to my attention.  It doesn't seem to reflect my RO 150's parts. 

I'll try going out on a limb here - is there anyone in the UK who has a RO 150 who would be willing to have a telephone conversation with me?  (A long shot perhaps I realise).

 

[AlexThePalex]

The parts in the diagram guybo showed above are the same for all 6 Rotex 150 FEQ versions mentioned in the Dutch Ekat.

Which Rotex 150 do you have, the new one (Rotex 150 FEQ) or the old one (Rotex 150 E). What is the product number of your rotex, I mean the 6 digit number like for instance 497021. It is on the sticker on your sander.

 

[paulo]

The parts in the diagram guybo showed above are the same for all 6 Rotex 150 FEQ versions mentioned in the Dutch Ekat.

Which Rotex 150 do you have, the new one (Rotex 150 FEQ) or the old one (Rotex 150 E). What is the product number of your rotex, I mean the 6 digit number like for instance 497021. It is on the sticker on your sander.

**********

I have the FEQ.  Product number - 492160.

 

[paulo]

Thanks for the "welcome" by the way Mike  [smile].

 

[Mike Goetzke]

Thanks for the "welcome" by the way Mike  [smile].

No problem - hopefully you get this back together!

 

[AlexThePalex]

I have the FEQ.  Product number - 492160.

Then you should examine that parts diagram very thoroughly, because every part your Rotex has is on it.

[attachimg=1]

 

[paulo]

I have the FEQ.  Product number - 492160.

Then you should examine that parts diagram very thoroughly, because every part your Rotex has is on it.

[attachimg=1]

******************

I appreciate your willingness to be of assistance.  Thank you.  I have been scrutinising that diagram for a while now.  It is not detailed / clear enough to reveal the answer to the one question that I still have.  The washer that is placed deepest within the machine has a shape to it.  It is unclear from the diagram whether the convex shape / face should face inwards or outwards.  I believe this can only be established by someone willing to take their arbor out to inform me how exactly this particular washer should be seated.  (And take great care in doing so, for fear of winding up in the same predicament as myself).

 

[guybo]

Hi, conical washers are used to limit deflection of high loads,also as a lock washer for assemblies ,most face away from the force that tightens them,that bolt will have a torque value.cheers guy

 

[AlexThePalex]

I appreciate your willingness to be of assistance.  Thank you.  I have been scrutinising that diagram for a while now.  It is not detailed / clear enough to reveal the answer to the one question that I still have.  The washer that is placed deepest within the machine has a shape to it.  It is unclear from the diagram whether the convex shape / face should face inwards or outwards.  I believe this can only be established by someone willing to take their arbor out to inform me how exactly this particular washer should be seated.

1 - The direction of that washer is not that critical as it will do its work no matter which way up it i is placed. You're overthinking this.

2 - You're really expecting a lot if you think somebody is going to take their sander apart to answer that little question.

 

[paulo]

I appreciate your willingness to be of assistance.  Thank you.  I have been scrutinising that diagram for a while now.  It is not detailed / clear enough to reveal the answer to the one question that I still have.  The washer that is placed deepest within the machine has a shape to it.  It is unclear from the diagram whether the convex shape / face should face inwards or outwards.  I believe this can only be established by someone willing to take their arbor out to inform me how exactly this particular washer should be seated.

1 - The direction of that washer is not that critical as it will do its work no matter which way up it i is placed. You're overthinking this.

2 - You're really expecting a lot if you think somebody is going to take their sander apart to answer that little question.

1 - I can so clearly now see why / how people often descend into conflictual interactions online.  I'm choosing not to take the bait.  Some clues; "attitude" and "personal".

2 - I'm guessing you have not unscrewed the arbor on your Rotex (if you have one).  The washer I'm referring to IS directional, it is NOT a conventional washer (I'm referring to it as a "washer" because I can't think of another word).  Most, if not all of the elements within that diagram are directional, the diagram is not clear enough to show this.

3 - I am not "expecting" anything!

4 - I'll keep my personal judgements of you to myself and say, yet again, "thank you".  Full Stop.

 

[oldie]

Hi.  As alluded to in an earlier post: with 'conical' washers, the nut that, ultimately, applies the force would be on the top of the cone-shape. 

As the nut (whatever) is tightened, the washer will be slightly squashed - enabling some some 'spring' tension - which is why might be useful to have some idea of the torque setting; particularly if inexperienced in such matters.   

Too tight - might not work as designed; too loose - err (?) might come undone...

Wonder if quick phone call to Festool might help - be great if could talk with a 'techy', or, maybe an email to them.  I do appreciate they might not want to engage for 'legal' reasons??

Good luck
Richard (UK)

 

[AlexThePalex]

I appreciate your willingness to be of assistance.  Thank you.  I have been scrutinising that diagram for a while now.  It is not detailed / clear enough to reveal the answer to the one question that I still have.  The washer that is placed deepest within the machine has a shape to it.  It is unclear from the diagram whether the convex shape / face should face inwards or outwards.  I believe this can only be established by someone willing to take their arbor out to inform me how exactly this particular washer should be seated.

1 - The direction of that washer is not that critical as it will do its work no matter which way up it i is placed. You're overthinking this.

2 - You're really expecting a lot if you think somebody is going to take their sander apart to answer that little question.

1 - I can so clearly now see why / how people often descend into conflictual interactions online.  I'm choosing not to take the bait.  Some clues; "attitude" and "personal".

2 - I'm guessing you have not unscrewed the arbor on your Rotex (if you have one).  The washer I'm referring to IS directional, it is NOT a conventional washer (I'm referring to it as a "washer" because I can't think of another word).  Most, if not all of the elements within that diagram are directional, the diagram is not clear enough to show this.

3 - I am not "expecting" anything!

4 - I'll keep my personal judgements of you to myself and say, yet again, "thank you".  Full Stop.

Wow, stop reading too much into things. That's a lot of made up stuff there and you're going off the rail. Quit it, please.

No one was doing any conflicting here, until you came up with this.

[eek]

I believe this can only be established by someone willing to take their arbor out to inform me how exactly this particular washer should be seated.

So...... since you're not expecting anything, how is this question YOU ASK going to be answered?

By the way, I am one of the most experienced people here in taking tools apart as I have done it many times. I have also assisted many people here online with repairing their tools, just like I am trying to do now for you.

 

[paulo]

Hi.  As alluded to in an earlier post: with 'conical' washers, the nut that, ultimately, applies the force would be on the top of the cone-shape. 

As the nut (whatever) is tightened, the washer will be slightly squashed - enabling some some 'spring' tension - which is why might be useful to have some idea of the torque setting; particularly if inexperienced in such matters.   

Too tight - might not work as designed; too loose - err (?) might come undone...

Wonder if quick phone call to Festool might help - be great if could talk with a 'techy', or, maybe an email to them.  I do appreciate they might not want to engage for 'legal' reasons??

Good luck
Richard (UK)

Hi Richard

Thanks for your clean and straightforward comments, refreshing.  I did call Festool today and they were incredibly helpful.  As I suspected the various washers were ALL directional / they had to be seated in a particular orientation.

Treated myself to my third Festool sander today also, the ETS EC 150/3.

 

[oldie]

Hi.  So pleased that worked out in the end. 

They are very helpful at Festool UK – confirmation is always good to read about. 

Vaguely wonder what purpose that precise ‘sequence / orientation’ serves? 
Maybe acts a sort of mechanical clutch – to protect the motor / bearings (whatever) from varying loads on the pad. 

For a job well done - you deserve a treat  [thumbs up]
I’ve read, so often, that these new-fangled sanders are quite impressive. 
Would compliment your RO150 for sure – if your 3rd sander is a DTS400 - that’s a wicked combination… 

All the best
Richard (UK)

 

[mrboult]

Dear OP.

Honestly, as I read this thread. . You are the only one displaying attitude. No bother though but worth noting GLAD you got the sander sorted.

Just an FYI regarding the new sander you just bought. The ETS EC 150/3 you just purchased is exactly the same sander as the ETS EC 125/3 EXCEPT, the 125 version will take both the 125&150mm pads. The 150 version you have purchased only takes the 150 pad.

Seems hard to believe I know but it has been proven and demonstrated by many here in the FOG including myself. Maybe it doesn’t concern you, but thought I’d mention it.

 

[oldie]

mrB: 
Good catch.  Having quickly read the OP's post, think my brain just assumed it was a 125/3mm sander.

Richard (UK)