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Hickenbottom

Pfaff 335 Sewing in Reverse, please help

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Hello, 

I have a Pfaff 335 -G-6/01-BLN that I have been having issues with. After reviewing and completing all the adjustments in the manual, the machine is sewing in reverse and forward when I lift the reverse lever. I am trying to go back through the adjustments to figure out what I did wrong but am having no luck. Has this happened to anyone before ir does anyone have any ideas what could be causing this? 

Any help is much appreciated. Thanks!

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It’s not clear to me whether you have the vintage casting or modern casting version of the Pfaff 335.

The service manual (https://www.manualslib.com/manual/1091134/Pfaff-335.html?page=11#manual) for the modern casting Pfaff 335 has this adjustment procedure for the feed motion:

IMG_0572.jpeg

 

What does your machine do at max stitch length and the needle position at BDC, when you move the reverse lever up and down?

That eccentric ring may be off by 180˚ on your machine.

A few well lit pictures of your machine’s insides would help, just to add arrows and point to things. A short video clip of the machine misbehaving would really help as well (upload to YouTube and post the link here)

 

Edited by Uwe

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@Hickenbottom Are you sure the handwheel is turning towards you?

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This is very basic and I'm sure you've thought of it, but I have to mention it because it's something I've encountered a bunch: make sure the motor is set to go the right way. I've seen either a switch (servo) or a plug on the motor (clutch)- if you turn the plug upside down it turns the other way. 

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