123hotchef
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What if you remove the cap? Still turns without the trigger being pressed?
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What if you remove the cap? Still turns without the trigger being pressed?
once plugged in it turns slowly with no trigger depressed, no effect with speed controller when trigger is not depressed.Looks like the switch is kaput - probably the triac being triggered by a leaky capacitor. It's probably going to be a whole new switch because you won't be able to get the individual parts and the switch may cost more than the drill's worth
Out of interest, you say it goes slowly when the trigger is not pressed, does varying the speed control make a difference ? Also, when you press the trigger, does the speed vary as expected or does it just run flat out whatever speed you set it at ?
If it all appears to be sort of working, I'd be tempted to remove it and give it a good clean, possibly give it a good dunk in some witch cleaner and blow out with an air line. The soot from the capacitor could have got inside the switch and be biasing the speed control ever so slightly on so cleaning it all up could solve the problem.
D
good shout thank you, I will see If I can pull the switch apart and checkThinking even harder about it, it shouldn't be doing this ever. It would indicate that the 'switch' doesn't truly break the circuit when the trigger is released. This is bad, it means if a fault such as a semiconductor goes short circuit, the drill could just go on to full power unexpectedly and you wouldn't be able to turn it off. It could do serious damage if you were changing bits and had the moving chuck in your hand as well.
Power tools should fail safe.
I don't think anybody would sell a drill like this, there must be a physical set of contacts in there somewhere. If they have welded shut (possibly due to the capacitor going iffy) that may be another thing to look at.
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once plugged in it turns slowly with no trigger depressed, no effect with speed controller when trigger is not depressed.
once trigger is pressed down the speed controler works as it should.
I must add I did abbuse this drill a little twice last week hence the cap blowing I suppose.
Drilling a auger bit down into a tree root and trying to split wood with the cone made it stall and arc a bit
I didnt let off until the magic smoke apeared!Should still fail safe
It could be that the stalling and heavy use just pushed the capacitor over edge and I wouldn't worry about that. When you stall the motor and switch off, you get massive back EMF from the motor and that could cook the capacitor, fry the semiconductors and also weld the contacts together etc. (bonus points for mentioning welding on a welding forum).
D
Oh they do exist. Few and far between but they do.do those type of shops exist anymore?
not around my way anyway
Oh they do exist. Few and far between but they do.