vacuum pump

For what purpose? How is the lubrication?

i plan on using it for vacuum distillation. it is a "lube less" pump. it says to clean it out with solvent whil it is running.

i got it working! any idea where i can get new graphite for the rotor?

rotor?

auto parts store?

they sell it in little tubes for lubing locks

Mark

A pump that hasn't been used for a long time might be stuck. Can you get at the motor to see if it turns freely?

What exactly does the plug look like? Possibly a twist-lock, or are the prongs not at the same orientation as for a normal 3 prong 115 plug?

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Its not that kind of grphite. He needs to replace the graphite vane.

Probably from the manufacture of the pump. Its a precision machined part.

Check the wiring under the cover, many motors can be wired to 120 or 240v though I've seen a couple that only had one voltage printed on them.

Some vacuum pumps - like for medical use - will have induction motors which are happy to run for very long periods. One way to start these is via a capacitor. If that has failed - as it could with age - the motor won't start but simply get hot.

Interesting. My first thought for that would have been a venturi pump run off a faucet.

These mechanical pumps I think of for purging refrigeration systems.