Pfaff 145 H3 Squeaking Handwheel

[Doc Reaper]

5 hours ago, kgg said:

 

Some great stuff

 

I had purchased a new machine from a guy that is on here. I was getting a clicking noise from the  reducer, and it was embarrassingly easy to fix. All I had to do was replace the bearing on the reducer (fly wheel under machine with the 2 belts on it) 

I also have a patch sewer and it was squeaky after 6 weeks of purchase and I used a bright white light flashlight and found an oiling port behind the main pully on the machine. After four days of constant lubricant the squeak went away. 
A bad bearing will click and one that’s good won’t. A squeak is ungreased  metal on metal and needs to be found ASAP,  a bearing that is about to go bad will squeak especially if there is a bit more pressure than it needs. 
that head is far older than the motor running it. I’m not saying it never happens, but,  a belt really doesn’t squeak - it makes a noise like rubbing your hands together in one direction, that also tells you the pulleys aren’t aligned properly. 
if you are anywhere near central North Carolina I’d be happy to give ya a hand, most bearings can be found at an auto store (they won’t make an uncommon size bearing when there are so many common sizes out there)

aligning the pulleys and the motor isn’t hard, it’s just time consuming and kinda intimidating if you have never done it before.

I'm in Concord NC, give a direct message I’m easy to get hold of, this goes out to anyone close to my location (close is 250 miles or less) 

Edited June 6, 2022 by Doc Reaper
Too much read

[ethereal]

Do either of you have photos I can reference of items that are sewn with the various industrial thread sizes? The Juki DU 1181N seems like a more viable option than the sailrite as it goes up to 138 thread, however, for about $200 more I could get the consew 206rb and have the option of sewing on size 207 as well. I dont believe ill be sewing anything more than 138, but I think it would really help if i could visualize the different sizes on a complete garment. 

I am unfortunately on the west coast, but i really appreciate the offer Doc! 
 

When we were originally looking for solutions to the squeaking, we thought the teeth on the belt could be what was causing it, though didnt really pay much attention to it. Maybe it is worth test a belt without teeth and seeing it moves smoother. 

[dikman]

For $500 it looks like a pretty good deal to me, particularly if it's sewing ok. Not too much paint worn off the base (I've bought worse!), nice strong table legs, good servo with speed adjustment dial, decent speed reducer - if it was me I'd grab it, but then, I'm not you. As Doc said replacing a bearing in the speed reducer shouldn't be hard and by measuring the old bearing you should be able to order a replacement fairly easily - if you actually need one. As for the table you could either glue some trim around the edge or just plane the edge back a bit and paint it.

If later on you feel you need something to handle slightly heavier stuff then I would think you would be able to get your $500 back on this one?

[Wizcrafts]

6 hours ago, ethereal said:

Do either of you have photos I can reference of items that are sewn with the various industrial thread sizes?

Here is a needle and thread size chart. The various "sizes" of thread are shown with their US and Metric diameters and the corresponding proper needle sizes to use with each.

[ethereal]

The teeth on the belt was the issue. Thanks for the help everyone!

[Wizcrafts]

Regarding things sewn with various sizes of thread, this belt was stitched on my Cowboy CB4500 using #207 bonded nylon thread, top and bottom, with a #24 needle. The total thickness was about 12 ounces. This thickness allowed me to completely bury the knots. Had it been 16 ounces thick, I would have used #277 thread with a #25 needle.

[ethereal]

1 hour ago, Wizcrafts said:

Regarding things sewn with various sizes of thread, this belt was stitched on my Cowboy CB4500 using #207 bonded nylon thread, top and bottom, with a #24 needle. The total thickness was about 12 ounces. This thickness allowed me to completely bury the knots. Had it been 16 ounces thick, I would have used #277 thread with a #25 needle.

That helps a lot! Looks amazing too! Nice work.