Rear lift 9n

Ranch 2014

New User
The rear hydraulic lift on my 9n will not lift. Before I start something I would like some idea of where to go. Fluid is full and not frothy. Haven"t taken inspect plate off yet. Just wondering what I should be looking for. Thanks
 
Your next step is to remove the inspection cover. Recommend left cover. Once it is removed, You should be able to see a lever that goes from the top cover to the pump, in the oil.
This is the "control rod" When you move the lift lever (on the outside) this inside lever, should go "forward and back". This lever move the "control vale", on the pump "in and out" causing the lift to raise and lower and to also sense the "draft control". This inside control lever has a spring attached to it.
Make sure the control valve is moving in and out, when you move the outside lever. There is a very good chance, that the control valve is "stuck" (crud and other thing). Tap the control rod forward or dackward to un free it.
If it is not stuck, you should be able to control the lift, by moving this inside lever, with the Pto spinning.
Let us know how this works and if not members will go to next diagnosis steps. You will have to put you hand in the oil to sense the movement of the control valve. ONLY DO THIS WITH THE PTO DISENGAGED.
Charles Krammin SW MI
 
Control arm may have popped out of place to the valve is not moving or the valve maybe stuck so it will not move.
 
The 9n has two control levers coming down from the top. They straddle the PTO shaft and attach to a T thingy that is on the end of the control valve. The 9N is notorious for these arms coming disconnected. They are spring loaded to push toward each other. That is all that holds them over the ends of the T thingy. If that is disconnected you need to hire Hoodini to reconnect them

Zane
 
Ok with the inspection done. The control rod moves in and out smoothly. However I found this lying on the bottom. My guess this is not suppose to be just lying around loosely. At this point I assume there is no easy fix.
 
(quoted from post at 19:32:54 08/18/14) Ok with the inspection done. The control rod moves in and out smoothly. However I found this lying on the bottom. My guess this is not suppose to be just lying around loosely. At this point I assume there is no easy fix.

Hmmmmm? "This" looks invisible from here! :roll:
 
Yes I did. I will try this again
a166372.jpg
 
Ranch,
That part is your "control valve". It fits into the pump and the other 2 rounded ends, fit into the "control forks". Yours just came apart. The reason it came "apart", is because the "control forks" loose their strength, over years of use, and allow the 2 rounded ends, of the "control valve" to slip out.
You can reverse the procedure and reinsert things.
I recommend taking the other "inspection plate" off and get someone to also help, as the forks, need to spring sideways (by force), to get the round ends, back into the holes in the "forks". I however did it alone, but it takes 2 hands through one inspection cover, or by tacking the seat off, you can get a hand in each inspection cover hole.
With the "control lever" all the way down (control rod to rear). put the control valve baxk into the pump. Next place one one rounded end into the fork. Next, move the inserted round end as far as you can insert it and at the same time, bend the remaining end of the fork, as wide as you can and pull and push the other rounded end of the control valve into the hole of the "control fork". A couple of cuss words help.
When all are connected the control valve, should move in and out and the lift work
To make sure this doesn't come apart again (as it will happen), Put a "plastic electric Tie-tie" around the forks, to hold the 2 forks together, against the 2 round ends. Some innovative way may be needed, to keep the plastic tie, from slipping off the ends of the forks, however the rounded ends of the forks are sufficient, to accomplish this.
"Happy fishing" in the oil and pertending you "Houdine".
BTW Feel for crud in the bottom of the oil, as most PO don't change oil, or drain water on the bottom, and your next step is "to drain the oil from all three plugs underneath, spray wash out all gunk and replace with new oil. Be prewarned that this cleaning also stires up other crud, and you may exoerience some stuck valve problems until all settle down again.
PS, I just cracked open my plug under the pump and drained about 2 quarts out, to visually look to see if there was water at the bottom of the oil, and to flus out accumulated "crud. (good maintenance issue as I use the tractor for snow plowing. I also make sure my tractors are housed as rain water can enter, thru the shifter boot ,thru the "draft control spring" and condensation.
Charles Krammin SW MI

Hope some other forum member, posts a picture of the control valve and contro rod in pump.
 
Thank you very much. It sounds like something I should be able to accomplish without destroying to much. Draining the oil was something I was planning on doing as it seems very dirty at the bottom. With a little luck I should become Houdini by tomorrow night. Thanks again.
 
Well what seemed like not much trouble all is back together. Lift operates as it should. Thank you all very much for your help. Hopefully I will be able to return the favor one day.
 

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