Adjusting stitch length on a pearson #6

[T Moore Medicine Hat Saddlery]

 I am looking for information on adjusting the stitch length on my pearson #6. It is sewing a beautiful and I mean beautiful stitch at 8 stitches per inch. I can turn the dial the manual says adjusts the stitch anywhere from 12 spi down to 4 spi and nothing changes just the same 8 spi. What am I missin . Any help would be greatly appreciated 

[leathersmyth]

 If you look at the dial from the back, There is a bolt sticking out from. This in turn should be touching another bolt(end to end) 

As you turn the dial the dial bolt should push on the one behind it. This should cause the entire part of the head to move forward and back which is how the stitch get adjusted...

[T Moore Medicine Hat Saddlery]

If I set the dial at any number it never changes the stitch length. I will try adjusting the bolt you mentioned. 

[leathersmyth]

If you look at picture, you can see where the two bolts bump together, Your back one,might not be sitting where it should be. The back one is the one you adjust if the stitch does not correspond with the numbers on the dial...  So if you are getting no movement would tghink that back bolt is either backed out too far so not hitting dial bolt, or is missing....

[T Moore Medicine Hat Saddlery]

I'll give this a try thanks 

[Matt S]

Check the screw tension in your needle block. I have found that if I tighten the gibs too far (to take all the slop out) there is a situation somewhere between "too tight to move the block back and forth" and "loose as a clown's pocket" that prevents the block moving fore and aft as far as it should, and it ends up with a much shorter stitch length than indicated on the dial. The long rocker arm doesn't follow to the bottom of the cam all the way. The solution is to loosen the locking screws on the LHS of the block (hex heads). Also make sure you're lubing all the little oil holes in the block generously, and I think there's one on the axis of the rocker arm which controls the front-and-back movement of the block. Have you removed the block and cleaned all the schmoo out? There's oil galleries behind the ways and they can get clogged. Like all British engineering you know when it's oiled sufficiently -- it starts leaking like the Exxon Valdez.

For reference the Pearson/BUSM 6 can do as many as 16 to as few as 3-1/2 SPI. The screw which bears against the screw on the stitch length adjuster is used to trim the stitch length adjustment for accuracy as the machine wears. If you need to turn it, remember it has a locking screw which needs backing off first or you could bugger the screw.

[T Moore Medicine Hat Saddlery]

The dial with the numbers has no effect on my stitch length. I keep it cleaned and oiled really good . Like the Valdez . I adjusted the bolt with the square heads and even though the dial isn't touching it it still is sewing at 5 1/2-6 stitches per inch which will do I guess.   If the dial is set on any number and it touches the bolt kn back that has the square head it sews in one hole

[Constabulary]

sorry can´t help - mine has the later type stitch length adjuster I´s suggest to check with LW Member Singermania