Faulty motor bypass ?

[Bat135]

Hi

I have an electric cricket bowling machine.

It has 3 motors.

One of them is iffy and when I first turned it on two motors span fast and the iffy one was very slow.

Now.. when I turn it on it just blows my house fuse box switch.

Can I bypass the iffy motor so I can run it safely with just the 2 good motors connected to demonstrate to the buyer that it's just an iffy 3rd motor. If so how?

 

[ProDave]

Check first that the problem is not a mechanical seizure i.e. the load the iffy motor is driving has mechanically seized and a change of motor might not fix the problem.

 

[Bat135]

The motor moving fine by hand...

It's not mechanical.

 

[ProDave]

You don;t want to "bypass" the motor, you want to disconnect it. Will the machine work with 1 motor disconnected or will it jam up because one part is not moving?

 

[Bat135]

The 3 motors mechanically work independently.

They power three spinning seperate discs.

I get it needs to be disconnected and the wires insulated so they dont touch each other.

My question is ... is it safe electrically to do so?.

All 3 motors seem to have thier own sets of wires coming from the controll box.

 

[Sharpend]

I would imagine that disconnecting one motor then demonstrating it to a potential buyer may be dangerous? who knows where or what direction the ball may take?
I would also go as far as to suggest that you might ought to call a spark round to disconnect it to ensure that it is left in a safe state, you wouldn't want your buyer to be claiming against you now would you?