Hitachi CW 40 Problem - Scroll Saw Woodworking & Crafts Message Board

Mediclee · 08-08-2009, 02:36 AM

Hi,
Has anyone else had this problem with the CW40, I turn it on but it doesn't start, it is getting power to the motor because I can hear it hummimng. Sometimes I can move the arm up and down and it will start other times this don't help. Also I changed the brushes and it worked fine afterwards so I don't think thats the problem, has anyone else had this happen to them. Is so what did you do the saw is about 1 year old.

Terry Jay · 08-08-2009, 05:35 AM

Yep, happened a few days ago. Took the green cover off, spun the drive arm clockwise a few times. That may free it up, or not. If not, spin it with the motor ON a couple times. Best done with the blade removed. Mine started fine, no problem since.

I suspect either a 'flat spot' on the motor or brushes, or some dirt or impediment somewhere. It was working fine until I used the compressor to blow it down and clean out all the hiding places.

Terry

USMC1126 · 08-08-2009, 01:13 PM

Yep that should work, it happened to me one time when I had my cw, with the motor on I would push on the arms to get them going again. After the first time it never happened again.

08-08-2009, 02:36 AM	#1
Mediclee Junior Member Join Date: Jun 2009 Posts: 16	Hitachi CW 40 Problem Hi, Has anyone else had this problem with the CW40, I turn it on but it doesn't start, it is getting power to the motor because I can hear it hummimng. Sometimes I can move the arm up and down and it will start other times this don't help. Also I changed the brushes and it worked fine afterwards so I don't think thats the problem, has anyone else had this happen to them. Is so what did you do the saw is about 1 year old.

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08-08-2009, 05:35 AM	#2
Terry Jay Member Join Date: Jul 2009 Location: Sterling, AK Port Angeles, WA Posts: 33	Yep, happened a few days ago. Took the green cover off, spun the drive arm clockwise a few times. That may free it up, or not. If not, spin it with the motor ON a couple times. Best done with the blade removed. Mine started fine, no problem since. I suspect either a 'flat spot' on the motor or brushes, or some dirt or impediment somewhere. It was working fine until I used the compressor to blow it down and clean out all the hiding places. Terry

08-08-2009, 01:13 PM	#3
USMC1126 Senior Member Join Date: Dec 2007 Location: Montgomery, NY Posts: 126	Yep that should work, it happened to me one time when I had my cw, with the motor on I would push on the arms to get them going again. After the first time it never happened again.