Hydraulic Question?

Here's what the lift system is doing. It won't come up all the way, it won't hold a tool bar after the engine is turned off and you can easily lift the arms all the way up after the system stops trying. What's the best thing to do with this? Besides digging a hole with my backhoe and giving it the last rights. (The backhoe is a Ford too).

Also one of the bolts for the lower arm is loose in the axle housing and leaking, read that VERY loose and LEAKING! I remember reading some time back about someone on this site who had a fix for the loose bolt. Does anyone remember that?

Thanks for any suggestions you folks may have.

I will send you some of my previous post files about the lift. I think that you are probably having a combination of problems which is common to the 8N lift. One of the worst offenders is the cam follower pin which is what the position control receives it's input from. The other thing is to look for a leak in the sysyem @ the ram cylinder rings etc and the pressure relief valve. Also there could be a gasket leaking somewhere such as under the ram cylinder where it mates to the lift cover housing.
If you dicide to take the lift off to work on it be sure not to remove any bolt except for the ones around the outsides of the cover. If you should remove a bolt that has fine threads it will be from the inside pattern and you should put it back in the same hole it came from. You can remove them after the cover is on the work bench if it becomes necessary.

You should first take off the right hand inspection plate under the seat on the side of the lift housing.With an implement on the lift start the engine and with the lift in the up position look inside and see if their is oil leaking from the end of the lift ram cylinder.If their is only a slight drip this is normal.If their is a fairly steady stream this may be the trouble.If the oil is coming from somewhere else try to pin point its orign. If you find no appreciable leaks on top in your view then you may have a pressure relief valve leaking. It is located just under the pto shaft on the vertical back of the pump.Sorta shaped like a spark plug and an 11/16" box end wrench fits it. You can check it for leakage by first finding it with the engine off and then with the pump running and with a load and hot put your finger over the end of the relief valve and if it is leaking enough to be a problem you will be able to feel the oil push your finger off the end of the valve slightly.You can check it by washing it up and then soaping it real good with some dishwashing detergent and water and apply air to the end that goes into the pump. If it is leaking you should replace it with a new one. The part # used to be 8N638. Hope this will give you some starting places. Zane in Al.

Again, thanks. Bobcat.

Well, see that "Nut" just below the axle shaft?, you got it, that's the nut that holds the "Pin" that's "Leaking" sorry, but the pic shows what's involved with changeing/fixing it!, The job really is'nt that bad just alot of bull work, just keep in mind that the axle housing is heavier than a dead midget and that the differenal will want to come out with the L. axle houseing. hope this helps

later,dave

Thank you DAVE,

I don't mind the heavy work, that's what I'm best known for. :-) However, the pin in question (on the left housing, of course) wobbles around in its hole. Does the pin do the wearing out or does the housing? If it's the housing can it be fixed at a small town machine shop or what?
Again, Thank you for your help. Bobcat.

later(Belch) dave

Belch,belch and belch again !(-:

later,dave