Hi Guys!,
I've been working on my 1650 w/loader that I posted pics of right after I got it in August.
Been buying a lot of parts that were missing when I bought it.
I've replaced all 14 hydraulic hoses for the loader as they were all pretty rotted and cracked. Flushed the pump, all the lines, cylinders, control valves, the reservoir and cleaned it's filter screen. Installed new fluid in system, tested and I'm good to go as far as the loader is concerned.
Installed NOS hydrostat relief valves ($170 for the pair) that I bought from a feeBay rebuilding service (Machtech) that many recommended in this forum. Mind you these are NEW, not rebuilt and yet they "weep" fluid out the top vent holes. Is this normal for new valves? (but it fixed my no reverse problem) All this aside....
My main question for you all today is concerning my rear hydro-lift.
It raises just fine and with plenty of force, but will not lower. As far as I can tell all parts are original to the tractor. There are no external leaks anywhere concerning the lift cylinder and the control valve.
However there is one thing I noticed while I was checking out the control valve. When the lever is pulled back to raise, it will return to the neutral position when released, but will not move when pushed forward for lowering. The total travel of the shuttle in/out of the control valve is about 1/4 to 5/16 of an inch.
I figure there must be an internal problem with the control valve and thought someone here may have had this same problem and would share what you did to fix this.
I looked at the diagram of the control and there just aren't that many parts in there to go wrong, any ideas?
Thanks again for all you good fellows help! Jim