The Shop > Electronics & IC Programing
need help with my pump!
tinkerer:
When you spun it, was it in the same position it would be when pumping? My vote would be one of the bearings. If that is a run capacitor, the start winding could be staying engaged. If it is start capacitor, may not be strong enough to overcome binding bearings until banged around. Stand it on end and spin the rotor and see if it is not grinding.
ieezitin:
75 plus
Here is a better picture of the capacitor in a close up and it is rounded.
Tinkerer,
I had it standing in the same position as it was to be worked. It turned on hummed a while then with me hitting the impeller it raced off but like I said lord did it get hot after a while, also my florescent lights went Bananas.
Darren
Got hold of the company for a price of a new capacitor today.
Now. I have a multy meter any ideas to check if it is the capacitor or windings?
One more question!.. It seems to me that the stator and rotor are immersed in a thin oil maybe about 1 pint of oil why does it not short out? Many thanks for all your help here... Anthony
75Plus:
The capacitor is definitely BAD. From the value it appears to be a run capacitor but it may be the reason the pump does not start properly. Replacing the capacitor should cure the heating problem. If there is a W.W. Grainger store anywhere near you they should have a replacement at a much better price than the pump maker.
As for the oil, these pumps run submerged in oil to preclude water from entering the housing. It is known as transformer oil and is dielectric (non conductive). A readily available substitute is common mineral oil sold as a laxative at most, if not all, drug stores. You will need to fill it to capacity and seal it well.
Let us know how you get on with it.
Joe
ieezitin:
75 plus
I thank you for your advice and knowledge, it was Granger I phoned today for a replacement capacitor just waiting now for a price and delivery.
You have all helped a lot in my problem many thanks. I will be posting the result of the new capacitor installation and to see if it works.
I am going to post a thread on How Toos on electrical problems as I think there is a lot of mechanical guys like me out there who are not versed in simple electrical work and know how.
Many thanks Anthony.
Darren:
Hi Anthony,
I'd also say deff the cap, it's only a baby one and should not cost more that a few dollars.
The oil is an insulator, as previously stated it makes a good coolant in many electronic devices.
You are not realistically going to be able to test the cap at home without the correct equipment, it's a relativity complicated process.
Caps are so cheap even the electronics guys just swap suspected caps rather than test them.
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