JCByrd24
Gold Member
As 186D owners have discussed here before, the 3PH raising speed when running above 2000 rpm is quick and hard to control due to the detent in the valve and perhaps it's internals as well. After reading a thread on the kubota quarter inching valve, I decided to mess around with my valve lever a bit to see if there was any regulating the 3PH with the lever, thinking if it's like any other hydraulic valve there should be if you can keep from going into the detent.
As suspected, if you slowly move the lever it is possible to regulate the hitch speed (if concentrating on it) despite it being nearly impossible while doing tractor work.
I decided to fabricate an adjustable stop similar to the quarter inching stop on the kubotas, though mine at the time doesn't have the option to go around it as I don't need that. It is basically just a piece of metal bent into a C with a hole on one end that bolts to the fender bracket and a 3/8" nut welded on the other end with a bolt threaded into it. The lever comes up against the head of this bolt. It is adjustable by threading it in and out of the nut welded to the bracket. There would be numerous other ways to implement a stop depending on your tools and material on hand.
I tested it out with my flail mower and it will raise it in a much more controlled manner at full throttle and lift it nice and gently at 1500 rpm as well. By adjusting the stop you could slow it right down to have some chance at using a box blade or rear blade to grade while traveling as well.
As suspected, if you slowly move the lever it is possible to regulate the hitch speed (if concentrating on it) despite it being nearly impossible while doing tractor work.
I decided to fabricate an adjustable stop similar to the quarter inching stop on the kubotas, though mine at the time doesn't have the option to go around it as I don't need that. It is basically just a piece of metal bent into a C with a hole on one end that bolts to the fender bracket and a 3/8" nut welded on the other end with a bolt threaded into it. The lever comes up against the head of this bolt. It is adjustable by threading it in and out of the nut welded to the bracket. There would be numerous other ways to implement a stop depending on your tools and material on hand.
I tested it out with my flail mower and it will raise it in a much more controlled manner at full throttle and lift it nice and gently at 1500 rpm as well. By adjusting the stop you could slow it right down to have some chance at using a box blade or rear blade to grade while traveling as well.
