Re 12 GPM pump: A number of years ago, I swapped a 12 GPM pump to a 17 GPM pump in a 656 whiteface. Same hyd as a 504. However, the filter did not like the almost 50% increase in oil flow. The tractor hydraulic system surely worked well. To accomadate the increased flow, I needed the large capacity filter. It was too wide to fit into the housing. A little machine shop work to make a spacer and some longer attaching bolts solved the problem. Rather than put on another pump, try a 17 GPM. Before you do, however, just buy the bigger capacity filter and it will be self evident what I mean by a spacer. I had Farmall 504 serial 6844 SYFF, a C153 motor unit with a factory wide and a 2001 loader. Had no axle problems. Tractor was traded on an 806. It is now completly restored in the hands of a serious collector. Any questions - just post!!!!!.....QR
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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