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Posted
1 hour ago, dumper said:

I had one of these for twenty years I’ve offered to talk him through operation not heard back

Said he’s away in his last post ? Sure he will get back! 

Posted
On 30/12/2022 at 08:30, MattyF said:

Said he’s away in his last post ? Sure he will get back! 

 

Yes indeed i was. Im back now. Just been up to the workshop to take some pics. Ive circled in red all the things im not sure about, so any pointers welcome.

IMG_20230103_192549_resized_20230103_073453815.jpg

IMG_20230103_192546_resized_20230103_073455809.jpg

IMG_20230103_192537_resized_20230103_073456209.jpg

Posted

Cylinder in 1st pic with valve on top looks like hydraulic accumulator, rotary valve beside looks like a flow control.

2nd pic looks like a diverter valve to change from one service to another.

3rd pic three spool valves to control hydraulic spool valves wherever they are on the tractor,

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Posted
On 03/01/2023 at 20:33, htb said:

Cylinder in 1st pic with valve on top looks like hydraulic accumulator, rotary valve beside looks like a flow control.

2nd pic looks like a diverter valve to change from one service to another.

3rd pic three spool valves to control hydraulic spool valves wherever they are on the tractor,

 

Thanks for the reply. Sadly, i worked all that out, but am still none the wiser what each one actually does.

 

With everything being siezed, it far from obvious as operating said levers results in no discernable action from the machine aside from raising the hitch.

Posted

Do you have anything attached to the hydraulic outlets, otherwise you will not see anything happening when using the spool valves other than a change in engine note.

Posted
26 minutes ago, htb said:

Do you have anything attached to the hydraulic outlets, otherwise you will not see anything happening when using the spool valves other than a change in engine note.

 

Do you mean the coupling with the blue protective cover on it? If so, no. But surely that can only account for one lever? In 2 directions. Or 2 levers. Leaving aside not knowing which lever that is, what do all the others do?

Posted

I think you need to follow the hoses and see where they go to try and make sense of what does what, as there could be aftermarket modifications.

Posted

Put up some pictures of the whole tractor front rear and side and a view of the levers from the seat  I’ve had two 7700 one from new, neither looked like this on the hydraulics till I had finished fiddling with them ! 

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