Pfaff 545 h2 L problems maybe

[dakota]

hi I’ve just purchased my first sewing machine . The problem I’m seeing is ( I’ve turned it by hand) when the needle is on the way up the sharp knife blade on the bobbin holder contacts  it as it’s going up is this normal and if not how do I fix it.

[CowboyBob]

See the thin piece of metal on the bottom leftside of the pic(underneath the point of the hook? Bend it towards the needle,this is call hook guard & is bendable(adjustable) the stop the needle from hitting the point of the hook,once in a while if it's hitting too hard you might need to loosen the 2 screws underneath the hold the whole assembly in place  & move to the right & then you'll have to move the big over to match it.Try bending the guard first since it's easier.

Edited February 7 by CowboyBob

[Uwe]

Here are two videos that show how that needle guard is supposed to work. The needle guard is supposed to slightly touch the needle as it goes up. The machines in the video are different, but the needle guards are very similar to your Pfaff. 

 

 

Edited February 7 by Uwe

[dakota]

Thanks for the videos I’ve had a good look and the problem is the needle is lifting too much and it is hitting below the scarf cutout. I lowered the shaft the needle is on 1mm and it doesn’t hit now but am pretty sure that’s not the way to fix it , 

[fibersport]

Great videos, thanks for posting.  I never realize they were supposed to actually touch.  I'll have to take a look at mine to see how it's set.

[Uwe]

@dakota you may be using the wrong needle system, or you’re using the correct needle system but the previous owner had adjusted the machine for a different needle system.

The Pfaff 545 H2 uses needle System 134 by default. (Other subclasses of the Pfaff 545 use different needle systems, e.g H3 uses system 134-35, and H4 uses system 190)

Make sure you are using the correct needle system when making adjustments for hook timing, needle bar height, etc. 

Edited February 8 by Uwe