Posted by Mark Robke on September 19, 2020 at 07:00:03 from (69.40.119.96):
My bil has a 1660 CIH combine with a Dt466 with the rotary fuel pump. While idling yesterday, it died. No restart. The primer/transfer pump on the rear of the injection pump would not pump-in fact it acted as if it was in a vacuum: when you pulled the plunger handle up, it sucked back down. Pulled the inlet line off and still in a vacuum. Pulled the check valve and it seemed stuck, but it did loosen and fall out. It had a little varnish on its side so we sanded it off and reinstalled it. With lines still off the pump handle still is in a vacuum and there is no suction at all on the inlet side. If I loosen the the check valve cap, it acts like it would pump, I felt outlet pulses, but I still could not feel any suction on the inlet fitting-probably sucking around the check valve cap. I cannot tell, but it looks like there was a seal on one the bolts that holds the transfer pump on; actually I am not sure the transfer pump is serviceable/removeable. So my question is where do we go from here? Thanks for any and all help, Mark.
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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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