Bobcat 763 - lost all hydraulic fluid

[grambo]

It started with a small oil leak and then I lost all my hydraulic oil. It was pouring out of this casing. Im going to suck out all the oil and try to identify where it's coming from after work. Can I get some support on where to start & what to look for? There was a small leak I noticed before and my hydraulics were definitely getting weaker leading up to this. I really hope a loose connection, maybe the drive motor seal? Any input would be great thanks !

 

[laurencen]

that much oil likely a pressure line but hopefully its easy to see where its coming from

 

[Tlawdogg]

Blown hose?
Any update?

 

[grambo]

Ya you were right , blown line. I'll attach a photo, this line looks impossible to replace. Is there a part # for a flex hose that could replace this. It looks like I have to cut it out and pull it out. It's the line I'm point at , it drops down to the floor of the drive motor casing and ties in, must of rusted out I can't see too tight access and sludge and dirt

 

[Tlawdogg]

Try looking the exact hose up on schematic..
Type in model...then click on it. Then click on your serial number. Then go to hydraulic schematics...find the hose...may be able to find it or cross reference it..
Good luck
Is it #15 or #8 on schematic? See below
Todd

Bobcat Parts Catalog - Find Diagrams for Your Equipment - Bobcat Company

Locate all parts and component information about your Bobcat equipment with detailed visual diagrams and illustrations with parts numbers and add to your list.

partscatalog.bobcat.com

 

[ZekeSkyree]

Sorry, but i had to laugh about "impossible to replace". My 642 blew a hose last summer and I had the same thought. I had to pull the engine, and damn near every hard/soft line to get to it. In the end, I replaced every soft hose and thoroughly inspected all the hard lines. I did not want to have to do the job twice. I feel your pain ......

 

[ward]

I know the New Holland and John Deere had belly pans that gave pretty good access to lines like that, we would put the skid steer on 4 12ton jack stands I am a good sized boy as I don't fit between 16" on center metal studs with out damaging them, wood studs give more.

 

[grambo]

Is there a compatible flex hose that could do the same job just follow a different route instead of going under the axle on the floor it could go over top? I believe it's the #15 hose in the schematic. I think I could install and make the connections on a flex line without having to remove all the hard lines above it.

 

[ward]

I used to get a pice of wire and tie it to the end of the hose and pull it out, then I would get a used fitting that fit the fitting of the hose I removed, I would cut off the end and weld it shut and weld on a 1/2 link of chain 5/16 or 1/4" then attach the wire to the link on new hose and pull it through, that way the new hose stayed clean inside from reviewing the picture you were pointing at it looks like you could do the same thing, I don't know the cost of the hose but a guy might to replace both hoses while you have the side plate off and check the slack of your drive chains while you have it open. New Holland and I think John Deere you could losen the hub to chain box and slide the front axle forward and the rear back wards, I made a spreader that rested against the axle bosses that worked pretty good put a little pressure on the spreader then tap the bosses then with a 4lb hammer forward and backward then recheck the chains. What I used was just a pice of 1/2" pipe with a pice of all thread and a small plate welded on the end of the pipe and all thread with a nut welded nut behind the plate a second nut was back against the pipe forcing the all thread out, the pipe was cut about 2" shorter then the distance between the bosses and the all thread was about 1 foot long, I don't remember if I had to shorten the all thread, I don't think I did.