Black Max twin pump builds up head pressure

by greg
(marion ky usa)

and starts smoking belt. someone told me that you can move, what appears to be copper the pipe going into the top of the tank either up or dowm. It has a compression type fitting on it. This is an upright, Black Max twin cylinder compressor.greg

__________________
Greg, are you saying that as the compressor runs, and before the tank pressure reaches the normal cut out pressure level, the belt on the pump sheave starts to burn, meaning, to me, that the pump sheave is being slowed?

"someone told me that you can move, what appears to be copper the pipe going into the top of the tank either up or dowm." I have no idea what this means.

What I am understanding is that as the tank pressure increases, the back pressure on the pump is slowing it, causing the belt to burn in a slowing sheave.

That being the case, the first thing I would do, is pull the intake filter off the intake port, and see if that changes anything.

Then, after shutting down and dumping all the air from the tank, is remove, clean and replace the tank check valve.

The next thing might be to look at the pump intake and pressure valves.

Cheers,

Bill





Comments for Black Max twin pump builds up head pressure

Click here to add your own comments

Feb 27, 2012
Belt smoking
by: Buster

Might check the belt tension, as the pressure builds, puts more load on the belt and could cause it to slip if it is a bit loose.

Click here to add your own comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Sanborn Compressor Issues.

Sanborn ~ How to wire a 30 amp 2 pole 110\120 v contactor coil to a pressure switch.

by James
(Joliet, IL)

This is a sanborn 80 gal 220/5 hp motor.

What I am trying to figure out is the why the 110 v side of the pressure switch to the magnentic pick up 110 v contactor coil does not draw the magnentic pick up in?

It worked when I put 220 to the coil of contactor but it burned up the wires on the coil.

Thanks.

Click here to post comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Sanborn Compressor Issues.