Combines 850 Powersteering

The hydraulic pump just inside the front flap of the engine compartment on the left side that is belt driven off of the crankshaft pulley. This pump has two hydraulic circuits. A low volume, high pressure for the power steering, and a high volume for the rest of the hydraulic functions. My steering went out on my 850. I had all my regular functions but no steering. The seat in the bottom of the pump orfice stripped its threads. We discovered this was the problem using the hydroanalizer. I had cracked open a line and oil poured out so I thought the pump was working but I had oil volume but not enough pressure to aid in steering. Hope this helps.

Absolutely the same as your problem. Up and running with a used pump with your help. Many thanks.

Terry, Just glad I could be of help. Happy harvesting.