The Shop > Electronics & IC Programing

need help with my pump!

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ieezitin:
Darren.

Thanks pall  I shall try the first idea as a need a different atmosphere in the shop anyways, I am getting tired of way lube and cutting fluid aroma.
 :D

If I don’t like the result I should try the second but a resistor is something I may not have but! If I were to carefully short out the terminals to a ground rod I have buried in the shop would that work?

Anthony.

Darren:
Well a bit of resistance is the "proper" way to do it, that's why your body works so well.

But then I often am too lazy to go and look for a resistor and just use a piece of wire. Just don't tell anyone or there will be a riot....  :coffee:

You don't need to short it to ground, just across the terminals, just flick it and keep flicking it till the sparks stop. Then wrap some wire around the terminals cos caps can sometimes re-charge a little bit. I say a little bit, it can still hurt.

John Hill:
There is still a bit we dont know about this problem but maybe this will help us along the way:

Get a mains light globe, put it in a socket and wire it across the capacitor (i.e. one wire from the light socket is wired to one terminal of the capacitor and the other light socket wire connected to the other capacitor).  Then try the start again.

If the motor was/is working properly the light will come on briefly as the motor gets up to speed then it will go off.  Also, provided the light bulb is good it will discharge the capacitor.

If the starting switch is not closed (as it should be when the motor is stopped)  the globe will never light, so that is useful information.

N.B. Take no chances with the capacitor and always consider it charged and lethal to the touch.

ieezitin:
John.

I will do this tomorrow I sent a little drawing of what I think is your idea as to do the light bulb thing.

This way I will have the pump stripped down again and I will probably tear into the bearings and such. But first I will try your idea.

Thank you   Anthony.

Bluechip:
Anthony

That won't do anything. The lamp terminals are shorted. It won't light up!

As no-one has posted a circuit of a 'generic' single phase, capacitor start motor, I will e-mail you some info. if you want.

Can't be bothered to post pics. on P-bucket  ::)  copyright stuff anyway ..
 
Dave BC

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