JDcrawlers Messageboard

Serial # is in the 150 psi range. Fairly late model machine of '85 vintage. Machine was a federal gov't unit so there were no modifications. I dialed the pressure in to a perfect 150 psi. Let the machine warm up and started pushing and the pressures dropped way off. I ran the gauge the whole time. M...

There are two 1/8 pipe plugs on top of valve body. Per manual I am using the rear one(closest to seat). On the underside I am shimming the center port with two springs, again per manual. Plug 3 in fig 18.

adjusting psi on newly rebuilt unit-sn calls for 150psi-using new springs-had 90psi starting-added shims in stages-got to 130-added .024 and shoot up to 290psi- have tried several combos- keeps shooting up after 130- never had this problem before making psi adj- any thoughts- thanks

I should have elaborated a little further on the fix. Here is a brief summary of what was performed on the machine by a certified JD mech w/35 yrs experience. Replaced all parts that were worn beyond specs-rebuild everything and set to specs from technical manual for SN 721784. New oils and filter. ...

Does anyone have a source for a new old stock forward/reverser control valve assembly for a 350C machine?

I fear mine has too many hours and the rebuild only fixed so much. Once warm it loses power at the valve through leakage I suspect. Good pressures, all at 125 psi.

Looking for a winch and log arch for a John Deere 350 B. Located in PA but will travel.

Andy