i had to break the hydraulic manifold under the fuel tank open to get at the bolts to remove and weld new base into fuel tank. Of course i thought I labeled everything carefully but the numbers wore off a couple of the caps. i thought I still had it right given that 4 out of 7 had readable labels and the others seemed defined by connection size and length. when i put everything back together all controls work as expected but after it runs for a minute I start to get stiffness in the joy sticks, i don't know what that is a symptom of, like elevated pressure in the pilot or return side or two feeds fighting each other or . . . ? not really sure what it means. but wondering if anyone has the piping diagram. this would be relatively early in the model run essentially a -1 or no suffix. serial# 10C-1977. i've got a couple parts books but they don't seem to have this manifold and hosing after scrolling through them. not sure what that is, or if it were pictured if I would even be able to trace the routing. a conceptual diagram would be the nuts. i find electric diagram which is pretty unnecessary since it is easy to intuit, but no hydraulic schematic. anyone better equipped in this department than I? thanks, brian
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