Pos & Neg On New Bilge Pump

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STILL AFLOAT

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Hi All.

I am replacing a tiny bilge pump, with a Jabsco 36600 proper job.
I got as far as screwing down the new bilge pump, then I realised, both its wires, were black ?

I seem to remember, that 12 volt motors ( Or Any DC Motor ) had a red wire and a black wire, so you knew what was what ?

There is no mention of polarity in the accompanying leaflet, and as far as I can see, there are no markings on the motor either ?

I have to wire the pump, through a float switch, then connect to + and - .

Any explanation, would be greatly appreciated.

Thanks in Advance
 
Since it’s a diaphragm pump, perhaps the motor can run in either direction? The crank arm will still go up and down, and the direction the water flows is determined by the valves, not the motor.

Pete
 
STILL AFLOAT said:
Hi All.

I am replacing a tiny bilge pump, with a Jabsco 36600 proper job.
I got as far as screwing down the new bilge pump, then I realised, both its wires, were black ?

I seem to remember, that 12 volt motors ( Or Any DC Motor ) had a red wire and a black wire, so you knew what was what ?

There is no mention of polarity in the accompanying leaflet, and as far as I can see, there are no markings on the motor either ?

I have to wire the pump, through a float switch, then connect to + and - .

Any explanation, would be greatly appreciated.

Thanks in Advance
Click to expand...

If the wiring is not colour coded then you can connect it either way round. If it is not a permanent magnet motor it will rotate in the direction it is intended to which ever way round you wire it.

The pump is a diaphragm pump so will not be sensitive to direction of rotation anyway.

It takes a fair old current (11amps) I hope your float switch is adequately rated. It will also need some hefty wiring esp if the cable runs are lengthy.
 
Thank You Both, for your prompt replies and explanation !
Now I can get on with the job, and cover the floor again.
Greatly appreciated.

Yes, its the heavy duty 20 amp float switch , thanks
 
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