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    Case 1840 Tandem Pump issue after rebuild

    Well, I have it all back together and now operates like it should! I still need to rebuild the lift and tilt cylinders, but other than those leaking, all seems well. The machine hour meter shows around 4000 hours, but I believe the engine was rebuilt in the last few hundred hours or so. It...
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    Case 1840 Tandem Pump issue after rebuild

    I realize it has been a while, but I figured I would update my post. I finally had great weather and the time to work on the Case again. Sure enough, I had the stupid charge pump rotated 180 degrees... What a foolish mistake, at least it didn't cause any harm (at least not that I can tell...)
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    Case 1840 Tandem Pump issue after rebuild

    Looking through the manual again, I have a bad feeling I may have the charge pump assembled incorrectly... Per the Case service manual, the pin should be at the top, I really think I have the pin at the bottom... Well crap, I guess I am splitting the pumps again.
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    Case 1840 Tandem Pump issue after rebuild

    By the way, thank you for your assistance, I really do appreciate it. Nick
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    Case 1840 Tandem Pump issue after rebuild

    Reason for rebuild - loss of right hand side forward power after hydraulic oil heated up. I believe this was caused by a missing 1/2" section of piston ring from the servo piston on that pump. What I replaced - I purchased the seal and gasket rebuild set from a Sunstrand shop here in Kansas...
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    Case 1840 Tandem Pump issue after rebuild

    I just finished up rebuilding the tandem pumps on my Case 1840. I also rebuilt the drive motors and replace 19 hoses on the machine. I drained all fluids and replaced all filters. Now that it is all reassembled, I am having issues with the tandem pump. I never get fluid to flow to\from the...
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