Posted by jdemaris on April 18, 2014 at 11:03:14 from (70.194.1.183):
In Reply to: 3414 Hydraulic pump posted by Dustin Medders on April 18, 2014 at 10:24:27:
Any pump can be any GPM depending how fast it turns. You need a pump that is around 2 to 2.5 cubic inches per revolution. That would have a rating of around 17-24 GPM @ 2000 RPM. The 3414 takes the same pump in front as a Ford 4000 with a backhoe/loader, Case 580CK, John Deere 350 or 450 crawler-loader, etc. Very common. In your sitution - one thing to consider. The original setup with the 3414 came two ways. One had a pump with a keyway insteaad of splines. That was just the early ones. Then they used a pump with a small splined shaft and a special driveshaft with one small end (to fit the pump) and one big end to fit the spline drive on the crankpulley. Your best bet is to just get a standard pump with the 7/8" X 13 splined shaft and use 7/8" X 13 all the way. This way standard Case, Deere or Ford parts will fit. You can buy all the coupler parts here on the Website for a Ford loader. The original pump on my 3414 was a Cessna/Eaton 2.33 c.i. per rev, # 25504LSA, serial # D971027BB, SAE B two bolt mount with SAE 20 on the inlet and SAE 12 on the outlet (both female ORB). Set up for counter-clockwise rotation when viewed from the drive end. This is the correct pump from Cessna. I used a Webster-Danfoss on mine only because I got a better buy on it. Mine was $280 new. Webster makes pump with the exact same dimensions as the Cessna.
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