Pfaff 335-17Bl

[miker]

What is the max stitch lenght on the pfaff 335 H3?

I want to get one for binding work on leather and canvas.

[Constabulary]

maybe this helps

EDIT: sorry - I was to fast, have not checked the PDF

335 H3 Subclass Old C.pdf

Edited December 8, 2016 by Constabulary

[shoepatcher]

We need to see a pic of the stitch lever and plate behind it.  Pfaff 335 machines have had maximum stitch lengths from 3mm to 6mm depending on when they were made and the sub class.  The ones produce today have a maximum stitch length of 6mm.

glenn

[miker]

[miker]

wrong picture

 

Edited December 8, 2016 by miker

[miker]

One last pic from the lever. I believe the length is quite small on this machine. Is it possible to increase the length by change the silver plate behind the black lever?

[dikman]

Your lever slot looks pretty small compared to mine. I spent some time trying to figure out how to get a longer stitch length but there's no internal adjustment. I did squeeze a bit over 1/2 a stitch extra by filing down the bottom of the silver plate that the adjusting lever moves in. I noticed that the plate was stopping the lever a bit above the cutout in the body, so by filing it down the lever could go all the way to the bottom of the slot.

In your case, take off the silver cover and try the lever without it, that will tell you if it will give you any more travel.

[Constabulary]

quite tiny picture but seems someone put an odd plate behind the stitch length lever. Remove the stitch length lever knob then remove the plate and put back on the the knob. Thats at least what I would try. The knob looks a bit odd too but cannot see details very well.

[gigi]

What helped in my case (Pfaff 335-17B H2L old casting) improving stitch length with about 1 mm: we made an adjustment changing the setting of the lift of the inner walking foot (noticed it was not lifting properly) But maybe mine had this problem and it's a particular case. 

Anyway I think it is better to check the entire machine timing because other adjustments could be out as well. Didn't yet remove the plate behind the stitch adjustment lever.

Edited December 9, 2016 by gigi

[shoepatcher]

This is a special 335 subclass.  According to the model plate,    #335-H3-734/01-6/01-921/01-BS

-H3  means regular maximum lift of 11mm

- 6/01 should be the standard model as to the feed  dog and feet.

-B means a B subclass which is on the lighter side of what it can sew plus a smaller balance wheel.   C and D class are heavier and a larger balance wheel

-S means for sewing cloth

-734/01    not sure on this designation but the extra little lever to the left of the stitch length lever I think allows you to change the upper feed in relation to the lower feed dog

-921/01   again, not sure on this designation

Like Constabulary said, I would remove the stitch length lever and the back plate, then replace the lever and wee what you got.  The stitch should be longer then That lever comes out with a set screw.  You need a long screw driver coming up from the bottom to retighten the set screw.  Generic stitch length plates can be ordered to replace the existing one and they are not real expensive here in the States.  Australia, maybe.

glenn

Edited December 9, 2016 by shoepatcher
grammar spelling