Juki 1508N Not Oiling The Hook

[jasonpotts42]

I just got a Juki 1508N. It is Servo driven and has a speed reducer on it.

The manual states that turning the oil adjustment screw clockwise will increase the amount of oil in the hook. It seems counterintuitive that rotating the screw clockwise would increase the amount of oil, it is like a needle valve and I have bottomed out the adjustment with no oil pattern on my paper and the servo set at maximum speed. I have also opened or turned the oil adjustment screw counterclockwise up to 5 full revolutions with similar results.There is plenty of oil in the reservoir, I have just filled it.

1.) Is my delima because of the speed reducer?

2.) is there a problem in translation of the manual.

I would like to get started sewing but I don't want to damage my machine, help please.

Jason

[gottaknow]

Hey Jason. Welcome!

You didn't mention if your machine was new or used. If it's new (or used and been sitting for a while), it's going to take some time for the oil to make its way through the maze of wicks in your machine. The manual is correct about the oiling adjustment screw. I know it seems backwards, but it's not. The nice thing about wick systems is they aren't dependant on speed. You can sew like a turtle and things will still get oil. I'd give it some time and use. The vibration seems to help with the oil saturating all the wicks. The hook is about at the end of the line. I've attached a pic of the hook and where you should place a few drops now and again regardless of where your adjustment screw is set. The oil splatter you speak of is dependant on the constant speed of the machine. I run my verticle hook Juki's at 3600 stitches per minute, some higher. If you open the screw up a lot, you'll find oil in the next county. The wick system in you machine is desireable for the design. The Juki 5410's have a pump that only pushes oil to the top shaft above 2000 spm. There's also an issue with the oil supply tube actually rubbing against the pump shaft, cutting the supply altogether. Not the case with your machine.

As long as your reservoir is kept full and your adjustment screw is open, use your machine. I would supplement the wick system with a few drops now and again where I've indicated. Verticle hook machines will always seize up first where the hook rotates around the bobbin case. If that happens, you'll know it. It's easily remedied by a few drops of oil where I've indicated and rotating your handwheel back and forth. Have fun!

Regards, Eric

Edited May 19, 2013 by gottaknow

[jasonpotts42]

Thank you Eric.

I feel much better about moving forward and I will put a few drops where indicated.