February 3, 2016 - 1:07pm
Rondo sheeter - how to clean rollers?
I have an old Rondo tabletop sheeter that I bought a while ago which didn't come with a manual. The model is STM503 from 1992. I want to clean the belts and the belt rollers but haven't the foggiest idea of disassembling it.
Anyone out there know how to do it?
Share
of your machine? http://www.geminibe.com/documents/EconomOperatingManual-STMandSSOver2.pdf
I did find that manual as I tried Googling before posting here. That manual is for the model that's one generation after mine and several things are drastically different. Mine does not have start and stop buttons - it runs by pushing in the safety guards among other things.
The pictures in that manual suggest that the belt rollers should be able to be pulled out but I can't seem to find a way, There's no nut keeping the belt roller on and this is what it looks like from the non-front side:
Because we just had to yank it really hard. It was just that gacked up! Good thing it's getting cleaned . . .
Your pic shows the left & right scraper blade assemblies are missing, unless you removed them. They clean the upper & lower sheeting rollers. The also provide a transition for the dough from the table to the sheeting roller so the dough doesn't fall down into the gap.
The front is missing the plastic face cover that keeps the left & right rollers from walking out.
You can call RONDO for these parts. 800-252-6552, press 5 for parts.
You can also ask for an authorized service co in your area to have the machine PMd and make a list of what parts are missing or worn out.
Good luck!
I did remove the scraper blades already and also the face plates you mentioned. I was trying to get unimpeded shots of the roller I was trying to remove.
Thanks for the Rondo number!
Hi Disastrophe,
I'm not sure if my scrapers are sitting right in my Rondo STM503 - any chance you could send a pic or - if you found one - a manual for the 503?
(And did you find a good way of dissembling it for cleaning?)
Many thanks for any help you can provide - this machine is driving me a little mad!
Hello, you may find bellow the manual extract relative to scrapers installation/removal/cleaning :
Please note that G.A.Seewer/Rondo made the STM503 during many years, and so the model received several design updates during its long production time.
However the scraper holder remained the same since the begining of production.
Just out of curiosity : I'm a lucky owner of a "Type 1" hand-driven model, released in the 60's (similar to the one pictured on the Rondo's website history section http://www.rondo-online.com/_Resources/Persistent/48caf51f6a54f4f1447e514d14d1d27714f21003/RONDO-Firmengeschichte-Company-History_2-2798x1180-2560x108... ) and the scraping system was already the same.
I too have an ST01 hand operated pastry brake, similar to the model on the website but with the addition of a flour trough. I found this thread because I am looking at an STM503 and am trying to identify any problems that people have encountered, especially with regards to belt removal and replacement.
Hello and congratulations for your ST01 which is now a museum piece. Here is mine on the day of buying "as is", before it's full restoration :
I would be pleased to see a picture of yours, thanks you.
Rondo ST1 (4).JPG
Thank you for this picture. I guess it was made in the 60's like, but the aluminum flour tray let's suppose it's a little bit older than mine fitted with a plastic tray.
Hello - In the off chance that this reply is read, I'm curious if you have suggestions on where to purchase a replacement conveyor belt for the Rondo ST1? I have an opportunity to buy one but the belts need to be replaced. So far I'm having a hard time finding anything similar to the size needed online. I'm planning on calling Rondo tomorrow morning. Thank you!
Alex
I was able to get replacement belts 2 years ago at Heritage Parts. They have since merged with Parts Town but still have the belts available here:
https://www.partstown.com/rondo/ron78391ec
ETA: the above is for the 503 model. I didn't realize you had different one. Hopefully you can find the right dimensions.
Yeah the belts I'm looking for are for the very old ST1. This one is probably from the 60s. Thanks so much for the response. I'll look around there and see if there's another one that might fit. The ST1 has longer conveyors but the width is very similar.
The STM503 is one of the best sheeter ever made, and there is no major difficulty for the belt removal operation :
- unscrew and remove the front small cover,
- untighten the tensionning cylinders,
- drive out the driving cylinders,
- then unscrew the intermediate feet, and each belt will separate itself from its table.
The only possible issue is when you have to do this on a sloppy model (with a lot of dirt and old flour) : a driving cylinder may be suck and impossible to pull out ; in this situation just remove the rear case and genly take it off its rear ball-bearing using a pin drift.
I see you managed to remove the rollers. Could you share the method with me? I just aquired a STM 503 yesterday and I have to strip it down to clean it up. It has been neglected for some time. I managed to find a company who can make the conveyor belts for about a 1/3 rd of the price offered in the UK.
Thank you in advance.
Once you remove the cover, you just need to pull. If it helps, grab the roller from under the belt to get a better grip and tug.
Thank you for the response. They were really stuck. I think the corrosion of the bush with the alloy frame was the problem. I had to remove the rear cover and using a wooden dowel and a hammer it took a lot of effort to free the bushes. Now removed and cleaned up they slip and and out easily.
I have replaced the conveyer belts but having a devil of a job to stop them rolling off. The manual does warn a lot of patience is required.
The other problem I am having is is how tight or lose the belts should be. I find if they are too tight, in operation only one side moves, the other sides gives a little try and stops. If I loosen they seem to both run OK.
So I am at the stage where I am trying to keep both sides moving and align the belt. However the travel of the belt is only very short in operation so is unlikely to run off. The problem I have now, is to act fast enough to switch off before it all falls on the floor. :)
regards
but we had a Moline sheeter and the easiest way to clean it was with a stiff brush followed by compressed air. It is a bit messy but cleans it better than any other way we tried. Water and soap is a bad idea as it cakes then becomes hard as cement.
EDIT:
OK see the Black colored collar after the spring? On it there is a number that |I cannot remember right now but something like xxx-L-xxx and the other roller has xxx-R-xxx . That should give you a clue Left and Right. In my machine that I bought second hand they were reversed. Once I switched them all was fine. I have to thank Rondo for that as they sent me drawings from the technical manual. I can only assume that after putting the rollers in on the wrong sides it did not work and so it was abandoned for some time, several years. The bushes holding the drive shaft in the alloy frame were corroded and |I had to use some force with a wooden down and a hammer to remove them. Once I cleaned them up them pop in and out easily. The Rondo maintenance calls for them to be removed each month for cleaning along with the canvas belts.
All done, one happy Rondo user.
It does appear that the clutches are worn. When the input side is running the reception side tries to turn but slips and stops. This happens on both sides and only when the belt is fairly loose.
Is there a way of fixing these? I cannot find any of them on the various spare parts centers around the world.
clutch.jpeg