Posted by Wardner on December 02, 2008 at 17:18:32 from (4.154.244.3):
In Reply to: Re: Got air ? posted by tractorsam on December 02, 2008 at 15:19:23:
The compressor is a Bendix-Westinghouse Tu-Flo 501. It has 272 CC displacement. Belt pulley no-load RPM is around 780. It would work better on the smaller tractors because the Cub and C turn twice as fast. I didn't calculate the CFM. B-W makes units with four times the displacement using cylinders arranged in a V-4. I don't know if they are available for direct mount. In fact, I have never seen one; only pictures.
I have a similar air brake compressor on my tandem axle International truck equipped with an aerial lift. At slightly over idle, it will run an air-powered airless spray rig shooting high viscosity coal-tar paint non-stop on large tank-farm tanks and sewage clarifiers. That takes some volume as the air motor diameter is 8".
Sometimes I would run the compressor governor at over 150 psi. I'll bet it goes higher even though the air brake compressors are single stage. Single stage refrigeration (Copelematic) compressors can easily achieve 300 psi.
Two gauges are for oil pressure. I want to make sure that I am not robbing too much oil from the D-350 engine. The third gauge is air pressure.
The drive is Detroit Diesel.
Apart from having the convenience of portable air on the tractor, I will be using the air pressure to control a hydraulic valve on a hydraulic gypsy-head winch. I am getting too much rope burn when the winch is idling.
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