610 Air in hydraulic system

[gearbox]

I finely had time to get the new to me 610 in the shop to start the engine rebuild . When I bought this one last spring it sucked so much air that the pump would not prime . It had no oil leaks after getting it primed . the book say's in the trouble shooting that they can suck air from the variable speed relief valve . This is where all the lines go to the steering clutches and the variable control . I found a small rock wedged in the relief valve poppet . I hope this helps some one who is thinking pump failure .```

 

[thynes]

Thanks for the tip. Tim in Mass

 

[Tazza]

Thanks for the tip. Tim in Mass

Something so simple.... Glad you got it fixed though, i have seen pieces of Oring stuck in places they shouldn't and caused issues, good catch.