On 2008-06-15, Larry Jaques novalidaddress@di wrote:
On Sun, 15 Jun 2008 01:35:43 -0700, with neither quill nor qualm,
Gunner Asch quickly quoth:

On Sat, 14 Jun 2008 23:21:20 -0500, Ignoramus20633
wrote:


If the heat losses are R*I^2, then the motor was producing (33/25)^2 =
1.74 times the heat that it was designed for, and turned more slowly
so it could not move as much air as it was designed to. That's why it
got so hot.

This leads me to believe that Wayne was right (as usual) and this is a
7.5 HP pump and not a 5 HP pump. It definitely needs a 7.5 HP motor,
or a slow 5 HP motor.


drop the pump pully 1" in diameter

frankly..as Bruce said..get an adjustable pully and dial it in.

Like we (you) did with your swamp cooler that day?


2 belts is nice..but often not necessary on a compressor. if it
squeeks..belt dressing is cheap.

Ooh, bite your tongue, boy. Belt dressing is a salve, not a cure for
the original problem. His compressor has FOUR belts for a reason.
It's a BAM. (Ayup, that stands for BigAss Muthuh.)


Yep. Four belts, the compressor is indeed unexpectedly BAM. I will see
if I can buy the smaller pulley at McMaster (they offer pulleys with a
special hub tightener). If I order on Monday, I will get it next day
and I can be done on Tuesday and will be able to put it up on
ebay. However, the compressor would not be running up to its
potential of whole 7.5 HP.

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