Hydraulic Pump/Reservoir Identification

[wiggamoe]

I received this hydraulic pump combo a few months ago for free. I am using it to make a tube bender. Unfortunately I can't find any identifying marks on it. The motor is manufactured by Dayton with the part number 9ZN47D. I do remember Grainger carrying a tube bender that looks like mine with the Dayton motor and all, but it is no longer listed on their website.

I am ready to bend the hard lines, but don't know which ports are "Pump" and "Tank". Any help in identifying this pump would be greatly appreciated. I can't get a hold of hydraulic fluid until Monday, so I can't even test it (even though it will make a huge mess).

http://supahonkey.com/tubebender/pump/DSCN2776_small.jpg

http://supahonkey.com/tubebender/pump/DSCN2777_small.jpg

http://supahonkey.com/tubebender/pump/DSCN2778_small.jpg

http://supahonkey.com/tubebender/pump/DSCN2780_small.jpg

[wiggamoe]

ttt

[billdacat]

That pump is listed in the Grainger catalog. (Grainger stock number 4F679-4F682)
There are four different GPM and pressure variations of this pump. .5 GPM @ 3000 psi.
1 GPM @ 1500 psi. 1.5 GPM @ 1000 psi and 2 GPM @ 750 psi.

The pressure port on top and return on the side. :smokin: