Bobcat 763 Pintle shaft seal replacement?

[cmb7684]

I have a Bobcat 763 with low hours but sat up a little bit that I have been tinkering with a while b c time has not been on my side lately. I got it running and it runs strong other than I ran into some seal issues with the spool valve that have now been fixed.
While under the cab I notice the pintle shaft seals or seeping some hydraulic oil enough to where I want tot address it before I fill the system back up with hydraulic oil as all drained out when I removed hoses and the spool valves.
Currently my machine is sitting on the ground on all 4 solid tires with the bucket in the air with the orange safety bar down locking out the lift arm on the boom.
I have searched around and have found several how to's that seem similar but the how to's were on newer machines and not a 763. There was some discussion of placing the newer machines jack stands or getting all four tires off the ground to remove the centering springs for safety issues. Does this apply to my 763 or is this some specific to newer machines? What is the safety issue? To move it at this point I would have to refill it with fluid just to dump it and start over all to move or jack up the machine as it is not in a place where that is possible.
Anyone know of a good how to on for changing pintle shaft seals on a 763?

 

[Bobcatdan]

The safety issues is you are removing all the steering linkage including the neutral mechanism. While apart you will probably find wear and replace some parts throwing the machine out of adjustment. The seal replacement is pretty much the same on most models 50 series and newer. Remove pintle levels, remove top covers and change seals.

 

[cmb7684]

The safety issues is you are removing all the steering linkage including the neutral mechanism. While apart you will probably find wear and replace some parts throwing the machine out of adjustment. The seal replacement is pretty much the same on most models 50 series and newer. Remove pintle levels, remove top covers and change seals.

Ok I get that part of it! It is on flat ground and I will be sure to stay out of the path of the wheels. If I chock the wheels is that sufficient? It would be really hard to try to lift it off the ground. It is on hard dirt not cement and not able to pull it to cement easily.

 

[Tazza]

Ok I get that part of it! It is on flat ground and I will be sure to stay out of the path of the wheels. If I chock the wheels is that sufficient? It would be really hard to try to lift it off the ground. It is on hard dirt not cement and not able to pull it to cement easily.

Chocking alone will not work, it will just drive over it.
If you can jack it up and support it under the axle tubes.

 

[Bobcatdan]

Chocking alone will not work, it will just drive over it.
If you can jack it up and support it under the axle tubes.

As long as the brake is intact, the machine can not drive threw it. That said, the machine will still jerk one way or another until the brake catches. Then the engine will labor or snub. If you are not going to jack it up and do it right, you have no business fixing it. This is how people get killed working on skidsteers.

 

[cmb7684]

As long as the brake is intact, the machine can not drive threw it. That said, the machine will still jerk one way or another until the brake catches. Then the engine will labor or snub. If you are not going to jack it up and do it right, you have no business fixing it. This is how people get killed working on skidsteers.

No I will get it off the ground if that is the only way to do it but I just wanted to ask what the limitations were and what was possible.
I think to be on the safe side I have to move it to another location. It will be easier on me to refill the system with hydraulic fluid and just move it. So I know what to expect when I remove the seals should expect a small amount of fluid to leak out or am I going to end up losing all the fluid in the tank?

 

[Bobcatdan]

No I will get it off the ground if that is the only way to do it but I just wanted to ask what the limitations were and what was possible.
I think to be on the safe side I have to move it to another location. It will be easier on me to refill the system with hydraulic fluid and just move it. So I know what to expect when I remove the seals should expect a small amount of fluid to leak out or am I going to end up losing all the fluid in the tank?

If you have an older one with the tank up high, it can drain when doing seals.