Loader Yanmar F18D hydraulic query

[nevis]

I doubt that is the high pressuer port.
Have you checked under the Right Hand (Brake ) footplate for 2 blanked off hydraulic pipes?
To check for sure remove the panel behind the black arrow - it comes off very easily although you will have to remove the 3pt stop valve knob and the difflock pedal. Behind this you will see the hydraulic port / valve assembly.
On my F215 I was then able to trace the 2 (in and out) external hydraulic pipes to under the Right hand footplate and could see the activation lever which pokes up through a slot next to the seat runner.
I would be verty interested to know what you find

 

[rmacAU]

If you know for sure that fitting is a high pressure port ,you should be able to tie it into in port on your loader valve. We /I have have no idea about your loader valve ie ;open center /closed center single joy stick / dual stick. you will need to have a return line to the tank. My loader valve is open center with single joy stick. in is h p from pump out is l p to tank

There are three control levers and two hydraulic lines - fluid into the control box and a return line.


Below the control valve for the 3PL - 'A' - is an extended outlet with a hexagonal plug screwed in.
With the cover removed I'm faced with another hex plug to the left 'B'
On the right hand edge are two hex plugs 'C'



The DVD from Hoye Tractor shows a different layout to my tractor. Which one of the two hoses is likely to be the HP line - the one with the 'O' connector OR the one with the circular plate with four fixing holes?

Then which of the four plugs do I attach to? One for HP line and one for the return line!

 

[rmacAU]

I doubt that is the high pressuer port.
Have you checked under the Right Hand (Brake ) footplate for 2 blanked off hydraulic pipes?
To check for sure remove the panel behind the black arrow - it comes off very easily although you will have to remove the 3pt stop valve knob and the difflock pedal. Behind this you will see the hydraulic port / valve assembly.
On my F215 I was then able to trace the 2 (in and out) external hydraulic pipes to under the Right hand footplate and could see the activation lever which pokes up through a slot next to the seat runner.
I would be verty interested to know what you find

I've attached a picture of the 'behind the plate' scene. There are not hydraulic points under the footplate L or R - it would simplify things if there were. The FEL went on a treat. My neighbour came over and helped me to lift the arms up as we moved the tractor into position. All the holes lined up and the bolts went in easily. Only problem was one bolt was in situ on the loader arm and the thread was damaged during transit. It wouldn't come out without removing one of the pins.

 

[kenmac]

No way I can tell you which 1 is hp. Unless ,someone has the same tractor and can tell/help you. You may have to purchase a hyd pressure gauge and check to determine hp. The hp line is usually the smallest line. Return is usually larger than the hp line

 

[scottlw]

The HP and return definitely run under the righthand foot plate, one QD is heading toward to the front on the tractor, the other (i assume the return) heads backwards, probably to the 3pt? If i get a chance to get the tractor out at the weekend i will take photos and try to trace the lines.

 

[winston1]

Boy, have you got my curiosity stirred up. No help for you but a question. You mentioned 3 control levers. I am assuming 1 is the raise lever, one is the curl lever, so what does the third do?? :confused3:

Evidently your loader is not plumbed for Power beyond with only two hoses coming off for hookup. Curious if your loader valve has a power beyond port.

 

[scottlw]

Looking at the photos of the loader, it looks like it has a 3-1 bucket (2 x hoses going to the back of the bucket), so would explain the 3rd control lever.

 

[kenmac]

Looking at the photos of the loader, it looks like it has a 3-1 bucket (2 x hoses going to the back of the bucket), so would explain the 3rd control lever.

Yes, Looks like his bucket may open and close

 

[kenmac]

Boy, have you got my curiosity stirred up. No help for you but a question. You mentioned 3 control levers. I am assuming 1 is the raise lever, one is the curl lever, so what does the third do?? :confused3:

Evidently your loader is not plumbed for Power beyond with only two hoses coming off for hookup. Curious if your loader valve has a power beyond port.

Just thinking ,,,, he wouldn't need a pb port on the loader valve if, he's got a hp port on a block somewhere to tie into

 

[scottlw]

Here are the pictures ...
View attachment 332018View attachment 332019
View attachment 332020View attachment 332021

I've used a black arrow to indicate a point on the Hydraulic pump that I assume is for the FEL attachment. Does anyone have a similar setup? Where does the second hydraulic line go?

Thinking about it, im sure (dont quote me) one of my hoses goes to where you have the arrow, it stays behind the facia plate using a 90º bend. Will trace it when i can.