Somtimes My Clutch Motor Runs Backwards And Sometimes Forwards. Why?

[Wizcrafts]

1/2 hp clutch motors can be bought for under $100 and excellent servos for under $150. If you change to a new clutch motor you can either keep your existing motor pulley and belt, or buy a smaller pulley and belt to lower the top speed and add torque. A dealer can advise you on both options. I get my motors, thread, bobbins, needles, oil and machines from Toledo Industrial Sewing Machines. I also get some hard to find parts from Keystone Sewing.

[dikman]

Brushes? I suppose it could have, but my experience with AC motors is that they're squirrel-cage type induction motors, so no brushes (not including the small ones used in power tools etc, which usually have brushes).

The clutches usually are flat cork-faced devices, it could be that the cork and opposing face need cleaning.

The two pulleys you mention would certainly help, but to tame a clutch motor you will probably need a speed reducer too.

By the time you add up the possible fix to the motor, plus pulleys and speed reducer you'll probably find it's better value getting a servo. This will give you the best possible control, particularly for leather.

[CowboyBob]

Here's the cure for a grabbing clutchmotor.Take the 3-screws off the end of the motor that holds the clutch on & smear a teaspoon of vasoline or wheel bearing grease on the flywheel & re-install the clutch & end of chatter.

[LoveToLearn]

Here's the cure for a grabbing clutchmotor.Take the 3-screws off the end of the motor that holds the clutch on & smear a teaspoon of vasoline or wheel bearing grease on the flywheel & re-install the clutch & end of chatter.

nice. Will that make it easier to feather the speed and not so 'off or fast'?

Thanks

LoveToLearn

[CowboyBob]

Yes,it will stop the grabbing & taking off,make sure too that the belt isn't too tight.

[Northmount]

Brushes on a clutch motor? Take it back. You've been lied to and conned, either by the seller or her service technician!

Tom

[LoveToLearn]

what do these motors have in them?, just windings and stator? The man specifically said brushes. I mean they did tell me about the reverse thing but they played it off like it was rare and it happend just once or twice. They said the cap was replaced also and it does say made in china so it probably is newer. Maybe he didnt understand or maybe the tech said brushes to charge him more and actually did nothing to the motor. Now where do I put that vaseline exactly?

Thanks

LoveToLearn

[LoveToLearn]

Yes,it will stop the grabbing & taking off,make sure too that the belt isn't too tight.

Ok so loosening the belt so it slips a little will also help give more control?

So vaseline.

Slightly slipping belt.

small motor pulley

big handwheel pulley.

What is the biggest handwheel pulley available? The motor pulley looks standard.

Thanks

LoveToLearn

[CowboyBob]

No,you don't want the belt to slip,adj it so it has 1" of play,a smaller motor pulley 2" will help too.

[LoveToLearn]

Yes,it will stop the grabbing & taking off,make sure too that the belt isn't too tight.

I saw someplace that an extension can be put on the clutch arm on the motor and then the pedal is connected on the end of the now lengthened arm which supoosedly gives much more control over the clutch arm. Can anyone confirm or deny this?

Thanks

LoveToLearn