Quarryscapes
New member
- Joined
- Apr 13, 2023
- Messages
- 14
- Tractor
- Iseki TX2160
Background: I have an Iseki TX2160 with a Loader attached that has not been plumbed properly. It has a 2 spool Walvoil SD5 valve block, which has pressure feed taken off from the banjo bolt of the factory pressure line between pump and 3 point linkage forming a Tee. The Tank connection is simply a hose nosed into the gearbox filler hole. Not ideal, and in practice the 3 point will only raise when one of the loader hydraulic circuits are dead headed (open centre valve because the carry over port has been bodged to make it an over centre plug) and if the 3 point is in float position or anywhere except top position the loader can't be used. I also want to add a second spool valve under the seat for running a post knocker, which is also a Walvoil SD5. I do have a proper take off block for the hydraulics which I intend to use.
Simplest option if I'm right is to put a closed centre plug into the FEL valve block. If I'm right should make it act as if dead headed when either spool is in neutral, and all flow should divert to the 3 point hitch as if there was no FEL on there at all.
Other option is to daisy chain the 2 spool valves - so from take off block pressure port, out to FEL spool valve, from repaired carry over port at FEL spool valve to pressure inlet of post knocker spool valve and from carry over port there back to the take off block to the 3 point hitch. Both tank outlets from spool valves tee'd into the take off block.
Now that last option should work as well, but my only concern with it is the amount of pipes running around a very small tractor - 3 pipes up to each spool valve where the FEL one currently runs on only 2. I'm thinking if I leave the pressure line to that alone, move the tank to the tee on the new takeoff block and add in the closed centre plug and then on the new spool valve connect that to the takeoff it should still all work correctly as Iseki intended and save a pipe. Unless I've missed something?
Here's the Walvoil schematic for an open centre SD5, as fitted to the FEL.
And these are the Carry Over and Closed Centre diagrams:
I figure this is what I have installed at the moment:
And what I think is the 'proper' way with the valves daisy chained using the carry over port:
Simplest option if I'm right is to put a closed centre plug into the FEL valve block. If I'm right should make it act as if dead headed when either spool is in neutral, and all flow should divert to the 3 point hitch as if there was no FEL on there at all.
Other option is to daisy chain the 2 spool valves - so from take off block pressure port, out to FEL spool valve, from repaired carry over port at FEL spool valve to pressure inlet of post knocker spool valve and from carry over port there back to the take off block to the 3 point hitch. Both tank outlets from spool valves tee'd into the take off block.
Now that last option should work as well, but my only concern with it is the amount of pipes running around a very small tractor - 3 pipes up to each spool valve where the FEL one currently runs on only 2. I'm thinking if I leave the pressure line to that alone, move the tank to the tee on the new takeoff block and add in the closed centre plug and then on the new spool valve connect that to the takeoff it should still all work correctly as Iseki intended and save a pipe. Unless I've missed something?
Here's the Walvoil schematic for an open centre SD5, as fitted to the FEL.
And these are the Carry Over and Closed Centre diagrams:
I figure this is what I have installed at the moment:
And what I think is the 'proper' way with the valves daisy chained using the carry over port:
