Folks, under the seat on this tractor is a handle that diverts the flow from the lift arms for the PTO to an optional output. It has a threaded plug in it. Has anyone ever used this output for anything?
B7100 Std Hydraulic Tap
- Thread starter JRHill
- Start date
Read the attached pages from the Operator's manual.
The system you describe with the control knob under the seat (DIRECTIONAL CONTROL VALVE) seems to be intended to operate a single acting cylinder on an implement in the same way the 3 pt hitch works with a single acting cylinder.
For double acting cylinders you need to have a hydraulic block.
The block can be difficult to find.
Further, if you wish to control double acting cylinders from the block, the control valve you install needs to have a built in relief valve to protect the main pump.
The page from the WSM shows the dimensions for the cover of the optional block.
Dave
kubotasam
Well-known member
Equipment
B2410, B7100dt, B7500,Woods BH750,Landpride 2660RFM, Tiller, B2781 Snowblower
I had a b7100 that used that tap to feed a loader control valve. The return dumped into the fill port on the transmission. It was kind of a pain in the butt because you had to keep turning the handle to swop between the 3 point hitch and the loader.
That is why the hydraulic block was such a better solution. It was often called a Power Beyond Block as multiple circuits could operate without the operator having to be moving a lever.
Dave
There was I time when I tired of fighting a 8hp Tecumseh on a towable 20T log splitter. I debated if the optional tap was usable for this duty relative to the available hydraulic pressure. I didn't want to fashion a PTO pump mount as it meant removing the back hoe or maybe just installing some quick disconnects in the back hoe or loader hydraulics. In any case I didn't end up using the B7100 as none of the pumps were two stage and would have reduced the splitter's capability.
I still ponder the utility use of the tap. Thank you for the block schematic though. It will be of benefit for some future time.
BTW, I finally traced the Tecumseh's problem to the carburetor. Bought a new one on Ebay and it has run like a champ since.
I still ponder the utility use of the tap. Thank you for the block schematic though. It will be of benefit for some future time.
BTW, I finally traced the Tecumseh's problem to the carburetor. Bought a new one on Ebay and it has run like a champ since.