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Power miter saw repair
Posted: Sat Oct 01, 2011 2:41 pm
by cincinnati
I have an older Craftsman 10" power miter saw. Last time I used it for a project it worked as it should without problems. Last night I got it out to use and it blew the breaker in the box. It pops right away as soon as I pull the trigger. The blade does spin so nothing hanging up. Got the same result 3 times. The outlet is not over loaded. Only this saw on the line at the time. I also hooked up another saw to the outlet and it runs without problem.
Where should I start looking for my problem?
A new Bosch saw would solve my problem quick:D
Posted: Sat Oct 01, 2011 2:49 pm
by beeg
cincinnati wrote:Where should I start looking for my problem?
A new Bosch saw would solve my problem quick:D
Ya could start looking to solve the problem at Lowe's. 
Hows the power cord and plug?
Posted: Sat Oct 01, 2011 3:25 pm
by billmayo
beeg wrote:Ya could start looking to solve the problem at Lowe's.
Hows the power cord and plug?
If you have a multi-meter, try the ohms scale as it sounds like a short (0 ohms) between the power leads or a short to ground and one of the power leads. I check at the plug for these conditions before doing any disassembling.
The insulation on older power cords (including Shopsmith GE motors) does deteriorate and crumble which can allow the shorting of the wires/leads.
Posted: Sat Oct 01, 2011 4:06 pm
by robinson46176
As Bill and Beeg both point out always begin at the beginning.
You did so by checking the outlet and being sure the unit is not jammed.
The plug is next then the cord. Next is the switch. It is not uncommon on many electrical items for a spade connector to come off of its tab and get against the shell.
.
Posted: Sat Oct 01, 2011 5:26 pm
by JPG
robinson46176 wrote:As Bill and Beeg both point out always begin at the beginning.
You did so by checking the outlet and being sure the unit is not jammed.
The plug is next then the cord. Next is the switch. It is not uncommon on many electrical items for a spade connector to come off of its tab and get against the shell.
.
Yes do check resistance from both sides to the ground/frame with switch 'on'.
Posted: Sat Oct 01, 2011 7:22 pm
by cincinnati
The saw does power on and spins the blade but only a split second then POP!
I will have to check it out and see whats wrong.
Posted: Sat Oct 01, 2011 10:05 pm
by robinson46176
cincinnati wrote:The saw does power on and spins the blade but only a split second then POP!
I will have to check it out and see whats wrong.
I'm sure you will find out what is wrong with it. You might not like what you find but you will find it...