Pfaff 4145 (combination of Pfaff 145 and Pfaff 4143)

[Brtz]

I attach a pfaff 4145 sewing demo video. Thanks for your help. Bert

 

 

 

[Constabulary]

wondering what you want to use this machine for... I think for most purposes a 301 lock stitch is - well - just better...

[SheltathaLore]

1 hour ago, Constabulary said:

wondering what you want to use this machine for... I think for most purposes a 301 lock stitch is - well - just better...

gottaknow outlined the typical uses of this type of stitch in an earlier reply.

[Brtz]

Constabulary - honestly, I bought this machine for a scrap price just for saving it from further destruction. I adjusted it, replaced some parts, cleaned them and learned how it works - keeping 'old cast iron alive'. This was for me a great fun and learning. By the way, I joined this forum where there are many professionals and experts. As for the machine - I certainly will not use it for my own needs, because of his limited scope of uses. This machine is for sale now. If it does not sell, I am wondering if it could be reconstructed by replacing whole bottom part of the machine with a typical 145 class lockstich machine with the bobin. It's only a matter of time to find another scrapped machine in the local market.

[Constabulary]

That was not meant offensive - I just wondered if you want to use it for leather work. You for sure find chain stitches in leather work (on shoes and leather handles f.i.. - Puritan machines are chain stitch machines too) I´m the last who don´t understand if someone wants to keep old cast iron alive I also have a Singer 25-56 chain stitch on my restoration shelf. I already know I have no use for it but I´m just interested in how it works  so I followed your work a bit though the 25-56 is totally different.

 

[Brtz]

1. Seems I solved a gathering problem. Studying pfaff 1245 service manual I found how to adjust several very similar assemblies as in my 4145. Btw - this 1245 SM is availiable on keyston sewing website. One of the settings which appeared wrong in my machine was top feed lifting motion. I tried to draw a scheme of how this motion is now and how it was before the adiustment of feed lifting eccentrics. This eccentric is shown on the corresponding page of the SM and marked with an green arrow on the photo. Both feed dog and the presser have to stick together before they start backtrack. Previously they started moving back before the presser land on the feed dog. Sorry, I cannot explain it more preciously. Anw, it's done.

2. I took a risk of ordering a new looper on e-bay. I found that a Michael from 'kunpengsewingmachineparts' offers some parts for pfaffs. I ordered 1 PCS ROTARY LOOPER #96-795282-00 FOR PFAFF 63 and also a complete tension assembly and a double toe walking foot set for 145. I had no idea if the looper will fit but USD10 is not a fortune so... You can see the new looper on photos just to compare it's shape with an old one. Then BINGO! This one works much much better than the old one! With the new looper and the brand new springs in the tension unit the stitches are tight, smooth and even. The delivery from kungpeng is free and it took 21 days to get those parts in Europe.

3. I have replaced the tension assembly and a walking foot set. Then made some sewint tests, few photos and sew a machine-cover as the dessert.

I think the restoration of 4145 is finished.  Thanks for your help.

Regards, Bert

[Uwe]

Thanks for the update! I'm glad to see you got the machine to work well. It makes a beautiful stitch now. 

[Hockeymender]

Very nice machine cover! I have them for all my machines but I guess I'm too lazy to put them on when I'm closing up shop.