The Fresh Loaf

A Community of Amateur Bakers and Artisan Bread Enthusiasts.

RondoSeewer STM 503

martin's picture
martin

RondoSeewer STM 503

Does any one have a Technical Manual?

or

Can explain how to remove the rollers so I can replace the canvas belts

and 

How is the operating handle removed? The only screw in it is an Allen Screw and removing it does not appear to do anything. I am loath to dorce anything in case I really do some damage.

 

regards

 

Martin Prior

martin's picture
martin

Well As a previous person wrote before me in 2016. I have suceeded in removing the rollers. I removed the rear cover and the front panel. The rollers are held in place just by metal bushes into the cast alloy chassis and I suppose theroecically can be pushed out from the rear through the front panel. Actually is was so corroded that it too a lot of hammering on the rear end of the roller with a piece of wooden dowl (to protect the ends of the roller) and a rubber mallet.

I t will come out but its quite tough or at least it was in my case.

 

I mentioned above that the rollers are held in by alloy bushes which snugly fit into the Alloy frame. Having now removed the roller I can see that corrosion set in and caused them to sieze up. I found another document online and in it says that the rollers should be removed each month and the canvas washed. Dry the canvas by passing some type of rod through the canvas and weigh it down with a 10 kg wieght to stretch it out.

 

This machine had been lying around for some time in our humid climate and the previous owner probably did not remove the rollers for maintenance.

disastrophe's picture
disastrophe

Ah, I'm glad you got them out!

JerrytheK's picture
JerrytheK

Have you tired to contact them?

Rondo - Heritage Parts
https://www.heritageparts.com › manuals › rondo Home; / Manuals; / rondo. Call Us; Email; Text Us. Request a Call from a CSR ... SSO615 · STM513 · STM 615 · STM513. models. http://www.rondo-online.com/ ...
AAAEngineer's picture
AAAEngineer

Remove the motor side cover. Back the belt tension nuts all the way. The belt frame has a small arm with a bearing retainer. Remove the retainer opposite  side of the motor with 10mm wrench. Using a drift punch gently tap the shaft back and tip the shaft outward a few inches. Slide belt and frame out

10mm nuts are underneath the frame

 Remove it

drainaps's picture
drainaps

Good afternoon, 

I've bought an old STM503 that has probably been improperly set up after replacing the conveyor belts: only one of the belts moves at a time.

A very friendly Rondo technician in Europe has told me over the phone that he's 99% sure it's because the rollers are inverted. I can't afford their service charges, so I need to swap the rollers by myself.

(1) Would any of you have a full service manual for the STM503? 

(2) Or point me to any how-to videos?

 

Thanks a million for your help. 

flormont's picture
flormont

Hello, a quick answer during a trip :

The STM503 has been designed and made during the "Seewer" period, before the company reorganised and grew under the "Rondo" brand. It works with a partial (but efficient) belt driving system using limited-slip freewheel hubs ; unlike the upper-range models which have a full driving system with differential speed control between input and output belts.
As a consequence, only the output belt will be driven, the input one can be stalled (due to the freewheel's action) if you start to sheet a piece of dough which has a significant weight.
The normal use of this model is to turn on the motor on the desired direction of rotation, check the output belt is rolling, and then pinch the input belt's front edge and gently make it moving forward until the dough becomes caught by the sheeting rollers.

Of course the driving belt cylinders must not be swapped from their left&right position, else the output belt will not be driven anymore and you will systematically get a "dough jam".

Regards

drainaps's picture
drainaps

Flormont thanks a million for your message. It helps a lot. Now I understand that for this particular model only the belt pulling the dough away from the roller will be driven while sheeting. 

Now the comment from the Rondo technician starts to make sense. Could someone please share the full technical manual for this model? It would help a lot. Thanks all. 

flormont's picture
flormont

I had a 503 in the past (now replaced by the early and wonderfull T1 model, hand operated as illustrated in the Rondo website's history section https://www.rondo-online.com/_Resources/Persistent/a09927044832c718ba685a3b1c8389f3984f8fb7/RONDO-Firmengeschichte-Company-History_1953-Picture.jpg ).

I may have something to share, but the quality is not very good and most of the texts are in french. Please let me know if this still valid for you ...

drainaps's picture
drainaps

Flormont thanks for your message. Yes if the documents are in French that's perfectly OK to me. It would would help immensely if you could share those. Thanks again. 

flormont's picture
flormont

You're welcome. Feel free to send me a private message and we will arrange that.

Regards

TheCopeOfHeaven's picture
TheCopeOfHeaven

Unfortunately, I cannot seem to send you a private message. Would you kindly send me that?

drainaps's picture
drainaps

Please check your inbox. Thanks for answering. 

Boualous's picture
Boualous