BAUER / MAKO ID help please

[Wookie]

View attachment 618654 View attachment 618655

A couple more detailed shots

Well, that’s a 110v ac control system

Single phase motor

And a high pressure shutdown

 

[211ratsbud]

Suspected faulty 5hp 1ph 230 v motor, apparently it trips the thermal breaker after a few minutes. Will be doing a little more research

 

[211ratsbud]

Motor details

 

[Wookie]

Suspected faulty 5hp 1ph 230 v motor, apparently it trips the thermal breaker after a few minutes. Will be doing a little more research

Either the overloads are too small or the motor is bad. A megohm meter will tell you.

Or the pump is dragging. Have you heard it run yet?

 

[211ratsbud]

Either the overloads are too small or the motor is bad. A megohm meter will tell you.

Or the pump is dragging. Have you heard it run yet?

I have not. This weekend i will shoot for a test. Pump rolls easily by hand though if that makes it any different.

 

[Miyaru]

5HP or 3.7kW on a single phase is pretty impressive. Draws about 28 amps.
Is that done a lot in the US? Here, anything above 3kW is 3-fase.

 

[211ratsbud]

5HP or 3.7kW on a single phase is pretty impressive. Draws about 28 amps.
Is that done a lot in the US? Here, anything above 3kW is 3-fase.

This is probably the edge of what's done.

 

[ajtoady]

That kind of draw should be on at least a 40 amp, 240 circuit. Get an amp meter and monitor thr running current draw. If it is basically around the motor rating, watch for a while to see if it varies much.
I'm in Ciincinati or I would come down and check it for you.

 

[211ratsbud]

That kind of draw should be on at least a 40 amp, 240 circuit. Get an amp meter and monitor thr running current draw. If it is basically around the motor rating, watch for a while to see if it varies much.
I'm in Ciincinati or I would come down and check it for you.

I'm pretty far from an electrician. I'll be calling in a couple favors and friends to keep from burning anything down here! Purple to green? Perfect!

 

[Miyaru]

Took a closer look at the pictures again. I'm not sure if it has back pressure valve or PMV.
If it does, the pressure will quickly build to 140-150bar after 30 to 60 seconds instead of gradually build up to that pressure (without a tank connected to the fill whip).

The interesting part is how many amps the engine will draw when the compressor really has to work, when a tank is nearly filled to 230bar. Check if the breaker is not turning into a heater....