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Pfaff hobbylock 4870 upper knife will not engage.

When turning to off it engages but will not change. Turning the knob to the right seams not connected to anything. Is there a adjustment for this? I have also changed the blade position with no luck. Nancy

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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: Pfaff hobbylock 794

The needles are changed by inserted the hex wrench into what looks to be holes on the front and left side where the needles go into the machine.I'm not sure what size the hex wrench is but it's pretty small. From the manual,
"Removing Needle: Unplug the machine. Turn the handwheel counterclockwise to raise the needle bar to its highest position. Loosen the needle clamp with the allen wrench and pull the needle out." and
"Inserting needle: When the neddle bar is at the highest position, insert a new needle in the needle holder, making sure that the groove of the needle faces you. Push the needle as far up as it will go and tighten the needle clamp screw." "Removing Needle: Unplug the machine. Turn the handwheel counterclockwise to raise the needle bar to its highest position. Loosen the needle clamp with the allen wrench and pull the needle out."

The machine takes DB x 1, or 1738 needles, and a size 14 needle is recommended.

Hope this helps!

Posted on Jan 13, 2009

SOURCE: Pfaff hobbylock will not run

it's sounds like the machine needs to be serviced

Posted on May 29, 2012

  • 1564 Answers

SOURCE: Pfaff serger hobbylock 4870 converter stuck on on

Have you tried gently wigging the hand wheel while attempting the change?

Posted on Sep 08, 2012

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here is a manual:

PFAFF hobbylock 4842 Instruction Manual

Be sure to ALWAYS RAISE the presser foot when threading the machine. Also, thread each thread in the ORDER specified or your machine will most likely never stitch correctly (usually, the upper looper first, lower looper next, and then the needles).

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Have you tried gently wigging the hand wheel while attempting the change?

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I need a manual for a Pffaf Hobbylock 4870.


http://servicemanualrepairs.com/book/pfaff-hobbylock-4870-instruction-manual/

Jan 11, 2012 | Sewing Machines

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Pfaff 1222 foot pedal


This indicates some sort of drive issue; your machine may have a belt that is worn or a bit stretched inside it connecting the flywheel to the engine.

But as a first check, does your machine have a bobbin winding clutch that you disenage by turning an inner knob on the flywheel? If yes, then just check that the clutch is fully engaged as this could also cause the drive loss.

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I need a manual for a Pfaff Hobbylock Serger 4762, where can I find one


I can't find a manual for this model, however there is a general hobbylock book http://sewingonline.co.uk/library/know-your-pfaff-hobbylock.html which would certainly be a good start.

You may find best source is to contact Pfaff locally and source it from them direct.

You could also try www.diplodocs.com, I can't see this manual but if you go through similar model numbers manuals you may see one very similar. Overlockers/Sergers are very similar in many ways so once you've mastered one, the next one is pretty straight forward. Four tension knobs, 2 needles and 2 loopers is the norm - to get a three thread stitch you just don't thread one of the needles. Tension adjustments alter the stitch formation, and you should have a stitch length knob on the right side of the machine along with a flywheel and if it has it, differential feed (which controls the feed dogs so you can stretch, or compress the fabric as it goes under the foot).

There are some good general how to use a serger books in the marketplace too which should help. Threading up, many machines have a diagram inside the front flap, colour coded dots on the knobs, eyelets and loopers. And oiling points are often marked on this diagram too. But basically oil the two loopers where they slide/move on another metal part. Some good info here too http://sewing.about.com/od/sergersoverlock/Sergers_Overlock_Sewing_Machines.htm

Hope this assists you a little.

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http://www.pfaffmachines.co.uk/overlock/pfaff-hobbylock-2-overlocker.htm

 

Once you have it threaded, always cut the old threads at the spool and knot new ones on and pull through.  You will have to thread the needles as the knots will not pass through but it does save an awful lot of frustration when needing new colours on the spools.

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I have a pfaff Hobbylock 4860 serger. I got it serviced about 6 months ago but never used it until about a month ago. Now it will not cut my fabric as I serge. What should I do?


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How do you get the blades to cut on a hobbylock 794 serger


It should just cut. Don't know too much about this machine as I'm new owner, but from what I can gather, either you need a new blade, or the upper knife is disengaged. The metal knob inside the threading area should be turned downwards, engaging the upper knife. The upper knife doesn't usually need replacing unless damaged, apparently. Hope this helps somewhat.

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