Jigsaw making an odd noise

[skcj213]

I picked up a Craftsman crowntop auto stroller jigsaw at an auction recently. When I tested it, it ran just fine but made a screeching noise when I first pressed the trigger and then made a growling noise as it coasted to a stop. Any ideas what the problem could be?

 

[jakemac]

It's hungry ?
(my 2yo nephew makes those noises at dinner time)

 

[skcj213]

HeHe, you're a funny guy!

 

[southalabama]

Funny. My cat does the same thing.

 

[rsanter]

Dry bushing.
Take,it apart, clean out the old grease and gunk.
Re grease and put into service

Bob

 

[skcj213]

Thanks rsanter, I will give it a shot.

 

[skcj213]

Well.....it's not the bushings. I removed the front of the saw and the 2 gears and it still makes the same noise. It has to be coming from the motor as there are no other moving parts. Could bad brushes cause a noise like described?

 

[rsanter]

I suspect it is the motor bushings. The ones the armature ride on

Bob

 

[Richard Cranium]

I figured it was gears needing grease, But I guess it could be a bushing

 

[skcj213]

I suspect it is the motor bushings. The ones the armature ride on

Bob

Thanks again rsanter. I will keep disassembling until I can get to them.