Yanmar 1401 adding auxillary hydraulics.

[Safetyman9180]

:newhere:Hi All
Very new to this site and live in France (but work in the UK) I am in the process of buying a log splitter for my Yanmar 1401 and need to install flow & return hydraulic lines, can anyone confirm or otherwise that its a simple break into the existing pressure and return pipework?
I would hate to do any damage to the pump, additionally looking at previous posts it appears that the 1401 pump delivers around 2-3 gals per minute and the splitter I am buying has a max of 3 gals per minute which I presume would be adequate? Also its an American piece of equipment "Powerhorse 13 Ton Horizontal" Are Japanese gallons american or imperial?
Any wise ones out there your comments would be very much apreciated.
I tried Santa but he didnt know!! Merry Christmas.
Safetyman

 

[winston1]

Here is the simplest way to do it. Might want to add quick disconnects and a loop hose to use when taking the splitter off. Never run without flow being able to go through. I believe Japanese gallons are imperial. Koyker loader install on a Yanmar After having looked at the powerhorse 13 splitter I believe that may be an error where it says 3gpm maximum. I believe that might should read 3gpm minimum. If you look over all the specs they say "requires a 3gpm pump or larger pump to work properly", also says "6 second cycle time with 5gpm hydraulic system".














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[normde2001]

From the same website, those instructions apply to all remote hydraulics as well as
Koyker loaders.

 

[Safetyman9180]

Thanks Normd2001, Winston1
I had better check the flow rates to ensure its going to perform, if not I suppose its a gearbox & pump off the PTO which will put the costs up considerably.
Thanks for you input & enjoy the festivities.
Regards
Safetyman

 

[KidYanmar]

I have seen in a Yanmar manual that tapping into one of the plugs on the lift cylinder case will give you hydraulics using the lift cylinder lever as a control.This would only have the same flow rate as the pump.One plug is a pressure saftey valve the other is a hydraulic tap.The plug has metric threads.Return fluid from the splitter is dumped into the hyd fluid fill cap,it cannot have pressure.Could be tricky to work with splitter.The lift cylinder will be disabled.

 

[winston1]

I have seen in a Yanmar manual that tapping into one of the plugs on the lift cylinder case will give you hydraulics using the lift cylinder lever as a control.This would only have the same flow rate as the pump.One plug is a pressure safety valve the other is a hydraulic tap.The plug has metric threads.Return fluid from the splitter is dumped into the hyd fluid fill cap,it cannot have pressure.Could be tricky to work with splitter.The lift cylinder will be disabled.

I have actually tapped into that on my ym2002d using it for a cement mixer single acting cylinder. A single acting cylinder is what that auxiliary outlet is used for. It would be possible to use it as you say but I wouldn't recommend it. On the made for America models that outlet is 3/4-16unf-2b. On the grey market models it is a metric thread of some sort. I drilled and tapped my fitting for 1/8"npt. When using that outlet the stop valve has to be in the closed position.

 

[KFree]

I have the same splitter that I use with my 226. I connected the lines to the hydraulic block like the owners manual says, with the exception of using a tee to connect the return to the loader return, and it works fine. There are a few things to think about if you do it this way.

You have to close the flow valve for the 3pt and have the lift lever in the full up position for the aux port to work. That means that you can't raise/lower the splitter when it is hooked up so you have to position it before hooking up the hydraulic lines to the splitter by closing the flow valve on the hydraulic block to lock it in place. Once I have set my work height for the splitter, I shut down the tractor, connect the splitter using the pioneer quick disconnects under the seat (installed these for the splitter), put the lift lever in the full raise position, restart and go to splitting.

If you forget that you have the 3pt locked and move the lift control to anything other that full raise, it will try to deadhead the hydraulic pump. Mine will bypass through the loader valve pressure relief, but I think that the hydraulic block also has a relief valve.

Hope this helps,

Keith

 

[Safetyman9180]

Thanks guys for all the info, I have now had a chance to escape the christmas games and taken the side covers off the tractor to get at the pump, I have managed to work out that the max delivery pressure is 160 Kg/cm2 which equates to 157 bar or 2276 PSI.
The flow has got me stumped a bit as it states 4cc rev which I assume is 4 cubic centimeters for every revolution the pump does, how would I find out how many revs the pump is likely to do? Think I need the manufacturers gearing ratio between engine revs and pump gearbox output, any idea's?
I have worked out the likely volume of the splitter ram at 508 cu inches a cycle so if I can find the pump volume I will know whether the manufacturers "minimum 3 gals/min" is correct or not.
Thanks again.

 

[Safetyman9180]

Just had another brainwave (dangerous I know) irrespective if the log splitter is a goer or not I am going to plumb in the hydraulic lines to a pair of quick release couplings, Ive attached a schematic of an idea to use a 3 way diverter valve instead of a spool valve, I'm hoping the T connection into the high pressure line to the 3 point hitch will not cause any flow/turbulence issues and the pressure relief valve is in the right place.
If any hydraulic wizards can take a view I would be much obliged.

 

[winston1]

Just had another brainwave (dangerous I know) irrespective if the log splitter is a goer or not I am going to plumb in the hydraulic lines to a pair of quick release couplings, Ive attached a schematic of an idea to use a 3 way diverter valve instead of a spool valve, I'm hoping the T connection into the high pressure line to the 3 point hitch will not cause any flow/turbulence issues and the pressure relief valve is in the right place.
If any hydraulic wizards can take a view I would be much obliged.

I reckon it will work but here is a couple of things to consider. If you switch to position 1 with nothing hooked up to quick disconnects your relief valve is going to have to take care of all pump flow. Also, if you are in the mid position and your 3 point handle is in the down position you will get no pressure on your quick disconnects. Also, in position 3 you will be pressuring up the return side of the quick disconnects when using 3 point lift. Won't hurt anything, just an observation. I'm not a hydraulic wizard so my thinking may be wrong, that is just what I see.
I don't know about the pump rpm either but here are some numbers to ponder. Based on assumption the pump is a 1:1 ratio running at 2400rpm you would put out 2.54 gpms. To get 3gpms you would have to run 2840 rpm.