Fortuna Skiving Machine Restoration

[Northmount]

3 hours ago, Rockoboy said:

By heating the metal around the hole (with the threaded bolt/screw in it), you will be shrinking the hole. As the metal expands, it expands in every direction. You will thereby, be adding to the aforementioned tightening of the bolt/screw.

This statement is  not correct.  For the past say 100 years or more we have been heating objects to expand the hole to enable release of nuts, etc.  We heat a ring and drop it over a shaft to act as a bearing retainer for axles.  As soon as the ring cools it shrinks tight to the shaft.  If you look at the molecular level, heating an object causes the molecules to vibrate faster and push away from each other.  So looking at the circumference of a hole, the hole can not get smaller.

One problem with heating a block of metal with a relatively small screw is that the screw heats up nearly as fast as the block of metal. Thus not enough differential expansion to really loosen the screw.  But simply heating to a high temperature (not enough to destroy the properties of the object) and cooling often helps to break the rust or corrosion that has locked the 2 pieces together.

An impact driver is very helpful, but care must be taken to avoid the driver slipping out of the screw slot and damaging the screw slot so you can't get a good grip on it after that.

Tom

[jimi]

8 hours ago, lintonleather said:

Yea I just measured it it’s a 34mm wheel. Anyone know where you can get 34mm wheels at a reasonable price? All the Chinese ones are 50mm 

I don´t see your location so i don´t know which country you are in? UK maybe?? here are two links and both have the Fav parts, failing that you could ask the Fortuna service for prices, I do not think they would vary too much for a normal feed roll. Sieck also sell parts for Fortuna, FAv skivers. The Chinese type 801 feed wheels from Ali express are larger in diameter so you might have to file some metal on your skiver for them to work. Chuck (i think it was?) here on the forum, actually broke one where the two pins enter for engaging it to turn, It looked exactly like the 801 Ali express ones. 

 http://www.fratellialberti.com/lang2/spare-parts.html

https://www.campbell-randall.com/shop/fav-fratelli-alberti

Found it....

 

Edited April 12, 2019 by jimi

[Danne]

2 minutes ago, jimi said:

I don´t see your location so i don´t know which country you are in? UK maybe?? here are two links and both have the Fav parts, failing that you could ask the Fortuna service for prices, I do not think they would vary too much for a normal feed roll. Sieck also sell parts for Fortuna, FAv skivers. The Chinese type 801 feed wheels from Ali express are larger in diameter so you might have to file some metal on your skiver for them to work. Chuck (i think it was?) here on the forum, actually broke one where the two pins enter for engaging it to turn, It looked exactly like the 801 Ali express ones. 

 http://www.fratellialberti.com/lang2/spare-parts.html

https://www.campbell-randall.com/shop/fav-fratelli-alberti

 

I add a link too.

http://www.fortuna-service.com/en/spare_parts/spare_parts_skiving.html

[jimi]

1 minute ago, Danne said:

I add a link too. 

Yes that is the one Danne 

http://www.sieck.de/en/machines/skiving/leather-goods-and-automotive-interieur/

[Danne]

2 minutes ago, jimi said:

Yes that is the one Danne 

http://www.sieck.de/en/machines/skiving/leather-goods-and-automotive-interieur/

Found this also. Lower shipping if he can buy in the country where he lives.

http://www.fortuna-gmbh.de/EN/WORD_OF_FORTUNA/REPRESENTATIVES/EUROPE/content.php

[jimi]

6 minutes ago, Danne said:

Found this also. Lower shipping if he can buy in the country where he lives.

I ended up buying some parts from the one in Austria because the one in Spain had me going round and round in circles never giving me a price when i asked him...

[lintonleather]

Thanks guys, I think Im going to go buy a rubber wheel as I hear that's best for fine leather. 

Anyone know if you can get the 50mm to fit in this machine? 

[Northmount]

@lintonleather according to the IP address OP is located in the Nottingham, Nottingham, NG5, United Kingdom  area.

It's a good idea to add your location to your profile so you get help related to your area of the solar system!

Tom

[RockyAussie]

6 hours ago, lintonleather said:

Thanks guys, I think Im going to go buy a rubber wheel as I hear that's best for fine leather. 

Anyone know if you can get the 50mm to fit in this machine? 

50mm will fit and is more useful overall. The rubber wheel is no better than a fine stone wheel on fine leather and as I have found is easily destroyed if it ever gets a adjusted up enough to touch the blade.  A stone feed wheel can be used partly to sharpen a blade when it has a large nick in it as well. The blade will come off with a few taps at the back off the bell after the 4 screws are removed. The tools mentioned with a picture above are not needed as they are for cleaning the sharpening stone and pulling the brass deflector that sits inside the bell etc. Heat will work and the head of the screw is broad enough to use a decent set of vice grips on it if the slot is too damaged.

[jimi]

12 hours ago, lintonleather said:

Anyone know if you can get the 50mm to fit in this machine? 

Like Rocky said a 50mm will fit but you might need to get the work plate for a 50mm feed wheel, (which is on the left side of your feed wheel) yours might be only for the 34mm feed wheel to fit? Maybe a picture or two of your machine would help.