Makita LS1030 runs without using the switch
I loaned my Makita LS1030 chop saw; it was returned with a tear in the cord (black wire was destroyed). I replaced the cord. Plugged it in, the motor started without using the switch. I figured the switch was bad and ordered another switch. Installed it and it is doing the same thing. Any ideas?
Replies
Parts could be installed just a bit off, so that the switch lever operates the switch.
Also look for wires touching near the switch.
Take it apart and try again. (check the wiring while it is apart. verify switch operation with an electric measuring tool of your choice)
Well the first thing that comes to mind is don't loan tools to that person anymore.
Do you have an electrical meter?
From Miles Overholser….
The two things dearest in life
Are the tools of the trade,
And the darling wife.
Don’t ask to borrow my tools….
And I won’t ask to borrow your wife!
you've probably wired the cord to bypass the switch.
You've probably got the cord wired to bypass the switch
mikemahan3, you are right. I reversed the two black wires on the switch and it works fine now. What I don't understand is why. Switches typically interrupt the current from the line to the load so technically it shouldn't matter which wire goes where. What is different about this particular switch?
If you look at the wiring diagram, I think there is a second winding that could be the brake.
https://cdn.makitatools.com/apps/cms/doc/prod/LS1/3016811c-1f0b-4705-9102-f7626f72b1ab_LS1030_PB.pdf
It could be this is a double-throw switch, so that when plugged in, and switch not activated, there is an electric force holding the blade in static place.
If you want to take it back apart, you could verify switch function and get more insight.
Interesting that the wiring diagram does not show where the line connects. Never mind I see the thing that is supposed to be the cord.