Model 3Z921 - does motor need oiling?

by Chuck Crabb
(Ketchikan, Alaska)

I have 3Z921 unit purchased appx 1985. It seems to run fine, but curious if there is periodic oiling requirement? I don't have manual and unable to locate one on web. Can you tell me if I need to oil compressor motor, then with what type of oil, where to add, and how much? I know I've probably been very lucky the unit is not used very often and hasn't seized up. I'd like to make sure the unit runs another 20 years. Thanks for your help, Chuck

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need parts for pump

by sam hoyt
(victorville ca)

Need cylinders & heads for a v pump.
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Folks can't even begin to help without knowing the model number Sam.

Bill

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3z428c Top Air Pressure?

by Jim Babb
(Rosalia, Wa.)

What is the top air pressure you can set a model 3z428c speedaire compressor at. Can it be set for 175 psi?

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Bill says...

Jim, it were me, I would not monkey with the pressure settings, either cut in or cut out, that come from the factory. Those pressure settings are set at those levels because they are right for the design and power of that compressor.

If you need a compressor giving you higher pressure that the one you have, I would get a new compressor that provides those pressure levels.

Other than that, I would check with Speedaire, though I suspect they would tell you the same thing I am.

Cheers,

Bill

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