Juki Dnu1541S troubleshooting

[Susan1]

Hi, new to the forum here! 

I am having some trouble with my Juki. I have had it a few months now and believe the trouble started when the safety lock engaged. I am able to sew, but the machine makes a clicking sound almost like something is loose and rubbing. The clicking sound comes from somewhere by the presser foot and feed dog. When I lift the presser foot, the clicking sound disappears. 

I adjusted the presser foot tension thinking it was maybe too tight. 

I re-adjusted the feed dog, thinking it was rubbing something. 

I changed the needle

Could it be the hook, or bobbin casing, or the needle, or the timing? 

Any thoughts? Thank you

Edited July 6, 2018 by Susan1

[Tejas]

I'm sure somebody who can help will respond soon.

Assuming you already have a user manual, attached is the service manual that might be helpful.

JUKI_DNU-1541_SERVICE_MANUAL.pdf

[Susan1]

Thank you. I do have a service manual, and have gone through a few things, but having trouble figuring out where the exact problem is stemming from. 

[AdamPCain]

Are you sure it's not just the check spring on the tensioner?

[Susan1]

I think I figured it out. It seems the hook assembly that the bobbin casing sits in, was wiggling a bit. This must have happened after the machine engaged the safety clutch at some point. I pressed the safety clutch again a few times and turned the wheel. The hook assembly clicked back in to place. 

[dikman]

Always nice when it turns out to be an easy fix.