110v 220v

Try another pulley, smaller on the motor or bigger on the compressor. Swapping to 240v probably won't do a thing. I had the same thing when I was making up a compressor. I ended up at almost

Now I would have thought just the opposite. If you put a smaller pulley on the motor, then you have more torque, that is true. But you're turning the compressor faster and that takes more horsepower (compressing air faster).

While a larger pulley will lower the torque available to the compressor, it will turn slower and take less horsepower.

Hmmm... go figure....

daestrom

.>If you put a smaller pulley on

A small pulley on the motor and a big one on the compressor makes the compressor go slower ... with higher torque. You pay for torque with speed. It will slow down the CFM for a given displacement (at given pressure) but that is why they make bigger motors :-)

If you are tripping the overload under load, the motor is not sized right for the job. It could be the pully size is wrong or the supply voltage is low under load. John

OOPS!!! That was my mistake. Oh well, first mistake I made today ;-)

daestrom