Add on FEL piping? Valve type?

[freedomlives]

I got an Iseki TS35F -- like a TS3510F -- last month -- japanese import-- where the importer in Poland had added on their own, in house made, FEL. The power steering on the tractor seems to me a bit weak/dodgy, so in the post I made about the TS35F in the Iseki forum, I inquired if the FEL was plumbed in the right way, and got the response that basically not.

The hydraulic flow is taken right from the pump, passed in to the FEL valve block, and then continues out of it to a divider valve (I think that's the right term) that sends some to the power steering and some to the 3pt lift. As far as I can tell, the valve block doesn't have a Power-beyond port, and instead the output to the rest of the system is flowing from the Tank port.

I understand this isn't how its supposed to be done, but I don't really understand why. My gut feeling is that somehow flow is restricted this way, and that's why the power steering seems weak-- e.g., if the tractor is not moving, it doesn't seem to be assisting in turning the wheels.

So also I wonder if I should be tapping in to the hydraulic system at a different point, or leave the point its tapped in to the same and get valves with power beyond, or what?

 

[LD1]

IMO, the flow divider should be the first thing after the pump.

then the flow divider now feeds the loader valve and the steering.

From the loader valve....you should have PB out of it to 3PH.

 

[CincyFlyer]

Yep, the priority should be the power steering, followed by all of the accessories (FEL, 3-point, BH, third function, etc.) So a true priority divider would be the safest item to have (gives x amount to the PS, before any is available to any other function.)

 

[Dave M7040]

How many hoses on the FEL valve block. 6 or 7?

How about some pictures so we have a clearer idea of what you are describing for us.

Dave M7040

 

[freedomlives]

The hydraulic pump:


Hydraulics leading in to transmission housing:


Steering hydraulics:



Control valves:


How the control valves tap in, just after the pump:

 

[freedomlives]

The FEL control block has a 3 sections for the FEL plus a 4th section going to the back to control a dumping trailer. Each section has two hoses. And then a hose bringing in hydraulic oil and a hose leading out.

I feel pretty certain I should move the tap point to be after the divider for the power steering.

 

[Dave M7040]

Could you plse provide a bit more history of this tractor.

Is it new? Do you not have a dealer for support?

Did you get any manuals with it showing the hydraulic circuits before the FEL was added.

If no can you get any maanuals

The close up photos are fine but some overall views would be helpful.

I have never seen a valve for a FEL with 4 spools, three sometimes if there is a grapple.

Do the only rear of the tractor hydraulic outlets come from the 4 spool valve block?

How do you control the 3 pt hitch?

Clean the paint off the metal label on the priority valve for the steering.

Dave M7040

 

[freedomlives]

The tractor is probably from 1998. TYM made it under license from Iseki according to the design of the 1980's Iseki TS3510 which was also sold White as the "2-35 Field Boss". It is an import from Japan. The importing company in Poland added the FEL.

I have the TS3510 manual, but there is no hydraulic diagram.

The solid steel lines in the second photo are the original hydraulic lines. The Poles opened it up there to connect the FEL valves. The 4th valve on that FEL valve block goes to the rear of the tractor to connect to a hydraulic tipping trailer.

Without the FEL valves, the hydraulics go like this:

From pump to steering priority valve "IN". "STG" port goes to the power steering. "TANK" port goes to the hydraulic fluid tank. "OUT" port goes to the 3pt lift cylinder, which is controlled by a lever next to the seat.

I think I need to get a set of valves with a "power beyond" port, and install them so that they get hydraulic fluid from the "OUT" port of the steering priority valve, and then the PB should continue to the 3pt lift.

It is really a shame that the Polish company didn't install it properly, but alas they deal mostly with Yanmar's and were actually not knowing much about this tractor. From looking through classifieds, I don't see as many of the Iseki TS series tractors available in Central Europe, I think that generation got mostly exported to the USA, and this particular one made by TYM in the late 90s is a bit of a rarity.

I'll get some more "overall" photos. Not sure about getting the paint off of those labels, if I can do it without destroying the label. Another thing that I find annoying from this Polish company-- they perfectly put masking tape over some of the (to me useless) Japanese language warning labels, such that you would not know that it had been painted if they didn't tell you, but this informational labels on hydraulic parts they didn't bother to preserve!

 

[LD1]

Yes, the FEL valve should have been inserted between the priority valve and the 3ph. NOT between the pump and priority valve.

And yes, to continue feeding the 3ph "beyond" the FEL valve...it "should" have a PB

 

[freedomlives]

I was just out there again, and maybe the valve does have power beyond. Stamped in to the cast iron body of the valve next to the hose coming from the pump is P, and next to the hose going out is a T, and next to that an N. I suppose the things on the side could also be for connecting hydraulic hoses, right? N might mean "next"?