2n hydraulics

[WRS23]

I had posted a while back about my 2n not lifting under a load. I changed the the oil and it got a little better. I removed the inspection plate an this is what I see. When the load is lifted and the PTO is off there is a steady flow of oil from the top. Is this a cylinder/piston problem? There did not seem to be movement in the oil from behind the pump.

 

[Bruce (VA)]

It's probably your lift piston/cylinder; there is a chance it's a gasket or a remote chance it's the line. Odds are it's the piston/cylinder; regardless, you need to pull the top cover.

Before you start, it would be a wise move to get a helper or a cherry picker. The lift cover weighs nearly 100 lbs with the upper lift arms attached, & is very hard to maneuver. An engine hoist is an excellent idea. Remove the seat and spring, disconnect the upper lift arms at the knuckles. Remove the 14 bolts that hold the cover to the housing. DO NOT remove the four nuts under the seat! Remove the left& spread the fork to release the control rod. Lift the back of the cover straight up and slide a piece of wood under the cover to keep the tip of the control rod out of the rocker shaft. Once you are sure the control rod is clear, you can then remove the cover. Turn the cover upside down, remove the four bolts that holds the cylinder to the cover, & use a little compressed air on the cylinder to remove the piston. Check the cylinder for excessive scratches, hone if necessary. Install a new piston with "0" ring and backing washer in the cylinder. At this point, check the cam follower pin & the control rod. If the cam follower pin is worn replace it. The ‘shade tree’ adjustment was to bend the control arm to compensate for normal wear in the linkage, springs & cam follower pin. If the control rod is bent, remove it & straighten it. (very carefully; they break easily!) Replace the gaskets under the cylinder and bolt it back on the cover. Set the cover and new cover gasket back on the tractor with a piece of wood between the rear of the cover and the housing. Align the cover holes up with the housing holes. Tighten cover bolts, connect lift arms install the seat. Re-install the inspection cover with a new gasket, no sealer.
50 Tips

 

[WRS23]

Thanks! I will get on this this weekend. You have been a great help.

 

[Anonymous-0]

There is no cam follower pin on a 9N/2N.

Regards.....don t. .....

 

[souNdguy]

If you don't have a set of manuals like an owners manual, a master parts catalog, and an I&T fo-4 service manual, bow is a good time to get one. small repairs like this are covered.. plus the parts diagrams help you figure out what goes where when you are pulling stuff apart.. or putting stuff together..

soundguy

 

[Bruce (VA)]

Oooops! My bad. You're correct.
50 Tips

 

[old]

Since your going to open it up any how I would think about up grading and putting in an NAA type piston and rings and you lift will work better then it ever has. Did that on an 8N and it now stays up for days instead of minutes with the engine off and a load on it