763 hydraulic valve leaking

[Proie]

Hi guys. New member, First time post. I’m tidying up and working on my fathers 763. Found a pretty significant oil leak coming from the bottom left hydraulic valve at the lower Righthand side in the back engine bay. Wondering if anyone can help on telling me what this valve controls and can I do a seal/o-ring replacement myself? Cheers Jono

 

[willett]

If it's anything like a 743 then it is the aux hydraulics. Could be quad rings which can be done in place or could be a hose or boss ring which may involve yanking the boiler.

 

[Proie]

If it's anything like a 743 then it is the aux hydraulics. Could be quad rings which can be done in place or could be a hose or boss ring which may involve yanking the boiler.

Thanks for the reply willett. I can’t for the life of me add a photo at the moment. But after searching many bobcat 763 images I think this valve assembly might no be original, I may be wrong though. This valve block is bolted to the base of the machine in the same position as the battery but on the righthand side, sort of under the coolant bottle. S/N 512229260.

 

[Tazza]

Thanks for the reply willett. I can’t for the life of me add a photo at the moment. But after searching many bobcat 763 images I think this valve assembly might no be original, I may be wrong though. This valve block is bolted to the base of the machine in the same position as the battery but on the righthand side, sort of under the coolant bottle. S/N 512229260.

Can you look up my profile and email me a picture? The valve should be mouned under the seat area, not so far back to be near the coolant bottle.
The seals in the control block do go bad

 

[Proie]

Can you look up my profile and email me a picture? The valve should be mouned under the seat area, not so far back to be near the coolant bottle.
The seals in the control block do go bad

Thanks Tazza. I sent you a little vid of it. Let me know if it comes through ok or if you need any other pics. Cheers Jono