Problem With My Juki Pro 2000

[Dogface]

I have owned this machine for years and it usually works well. Mostly I use 346 on top and 277 in the bobbin. Needle size is 230. I just moved my shop from my barn up to a loft above our detached garage and had the machine serviced during the move. I'm now having real problems with it. It seems that on one later of leather...maybe 8-9oz...it sews OK but makes a scratching sound on the way out of the leather. On thicker leather or more than one layer it scratches louder and sometimes will just not come out of the leather at all without me using both hands on the wheel to force it out. Often the top thread gets frayed or breaks. Yes, the top thread is lubed. Even if I change needles to a new one it still does this and there are no barbs on the needle that I can feel.

I really don't want to have to take it anywhere since its so darn heavy.

Hopefully someone here will have an idea for me to try....

Mark

Edited October 27, 2012 by Dogface

[Trox]

Check if your handwheel is loose on the drive shaft.

Trox

[dirtclod]

I have the same machine and sometimes it dose the same thing on some sides. I'm thinking it's rawhide in the leather where it didn't all the way. Mine makes a sound sorta like when ya pull a nail. The only thing that i found that helps is to take the tread out of the needle and the arm at the top and lay it in the tension disk at the top and sew the piece with no thread then thread it again and stitch and will still do the same thing sometimes.

Edited October 28, 2012 by dirtclod

[Trox]

I think you have to bring it back to service, frayed and broken threads means the timing is off. They may have forgotten to tighten down som screwes on the hook shaft after adjusting it. You have to complain about the service job. Since you had it serviced you are not your own mechanic. If you are, you should check all shafts and screws are tight, and then check the hook timing.

Trox

[Dogface]

Trox

I was afraid someone would say that

[Trox]

I am sorry to be the one with bad news, however you knew the answer yourself. Better safe than sorry. Have them to visit you, you should not pay for this.

[Ken Nelson]

I am sorry to be the one with bad news, however you knew the answer yourself. Better safe than sorry. Have them to visit you, you should not pay for this.

I would call Cobra Steve and see if he will sell you a manual for a Cobra Class 4. It has excellent instructions for timing the 441. Good resource to have. Ken

[Anne Bonnys Locker]

Rule No1. If a machine is working fine then it needs no servicing beyond cleaning, oiling and checking the screws are tight. I see too many problems caused by "mechanics" who have no idea. I cannot claim to be an expert as I am learning as I go but you will know when your machine is not right by the sounds it makes and how it behaves.

Rule No2. refer rule No1

[CowboyBob]

Mark,

Sounds to me like your sewing on old or dried out leather,that's what the noise is,try putting some lube on the leather or at least between the 2- pieces & I'll bet the noise will go away.

Bob

[Dogface]

Bob..... I think you're on to something ! Thanks.