Restoring my Pfaff 145

[shoepatcher]

pull balance wheel and clean that.  Looks great so far!  remark all oil holes with red paint stick.

glenn

Edited March 19, 2024 by shoepatcher

[SingerDad]

love these before and after pics.  Good for you to keep us up to date on the progress.   As for belts.... others may balk, however I have had great luck with the polybelts that you can cut to length and melt the ends together.  you can get custom fit every time.   

[shoepatcher]

I prefer the hollow ploy belts with the aluminum burr.  Even better than the solid belts.

glenn

[Uwe]

13 hours ago, shoepatcher said:

I prefer the hollow ploy belts with the aluminum burr.  Even better than the solid belts.

glenn

Can you elaborate on that please? That aluminum burr is new to me, I’ve not come across that type of belt in my online searches. A link to a source would be great. 

[fibersport]

I think this is what he meant by the hollow [ploy(sp)] poly belts, but the connector is called a barb, not a burr.  https://durabelt.com/hollowbeltinfo.php

You need to be careful on the minimum pulley diameter with the ones shown, says a smaller pulley will cut through the tubing.  There are other brands.

Edited March 23, 2024 by fibersport
additional information

[JulesPDX]

Hey friends - thanks for your replies! I am still trying to get everything turning smoothly but now the machine is locked up. Please let me know if you have any ideas of where to start diagnosing, and thanks!

 

[JulesPDX]

Found this…

 

Edited March 23, 2024 by JulesPDX

[Uwe]

The short answer is that there’s nothing wrong with your machine.

Don’t turn the machine backwards. Don’t turn the machine much in either direction with the throat plate removed. It’s likely to bind up, especially in reverse because it’s not designed to do that.

It’s okay to turn the machine by hand with the throat plate removed while adjusting hook timing, just watch the position of the bobbin case. The tab that’s normally under the throat plate should generally point at the needle when you remove the throat plate, don’t allow it to spin freely.

Only turn the machine in the designated direction - meaning the hook will rotate clock-wise.  Small adjustments in the reverse direction (counter-clock-wise) are okay, but not a full turn in reverse or more. Bad things will happen. 

 

[fibersport]

Check this manual out, it's for the newer 1245 but most of it will apply to the 145.  While the machine isn't designed to run backwards, it shouldn't bind up in a turn or two, it might take a few times to get everything set correctly, just make sure it's oiled up.  I like to use a mixture of a light grease like Lubriplate and a 3 in 1 household oil.  

One more thing, is there a chance the safety clutch was tripped?  If it was, the timing will be off and it can lock up like that.  Read up on resetting the safety clutch and check that.

1245-1246 adjustment manual.pdf

Edited March 24, 2024 by fibersport
additional information

[Uwe]

When turning the machine backwards with the bobbin cap on and without the throatplate, the bobbin case opener ends up on the wrong side of the bobbin case “triangle”. Then when you change rotation again it catches on the bobbin cap, causing the bind. That’s not a normal operational situation. There may be other things going on, but that bind in the video is quite obvious. That bind situation would never happen during normal operation of the machine with all parts in place.

 

 

This video was made on a different machine, but the concepts are the same. 

 

Edited March 24, 2024 by Uwe