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9n lift arms go up fine but lower very slow

W

weracemx

New User
ok very new to this first 9n thanks for the help in advance.
the problem i have is that the arms lift i think the way they should, but when i want to lower them they move extreamly slow when we first got it they worked fine .
any sugestions .
i checked the oil very clean and at the full line on the dip stick
 
Ok so are the arms loaded or just them by them self?? If you have little or no load on them yep they will go down slow this time of year. The 3 point is power up gravity down so little or no weight on them means they fall slow also
 
(quoted from post at 16:05:18 01/10/14) ok very new to this first 9n thanks for the help in advance.
the problem i have is that the arms lift i think the way they should, but when i want to lower them they move extreamly slow when we first got it they worked fine .
any sugestions .
i checked the oil very clean and at the full line on the dip stick
Click to expand...

The lift lowers when the control lever moves the spool in the base of the pump and uncovers the exhaust port allowing oil to exhaust back to the sump. If the control lever linkage l is not moving the spool the full distance or there is something obstructing the port opening the lift will not lower or it will lower slowly.

Remove the right inspection port and observe the movement of the spool as you operate the control lever - you can even reach in and operate it directly to see what is happening. If the spool is not moving the full distance adjust the linkage to correct the problem. If the spool moves properly but the lift does not respond there is likely a blockage inside the valve/pump. Remove the spool and clean it and the valve cavity.

TOH
 
thank you i will check this i assume the inspection plate is the one with the dip stick?

im in northern california and its 65 degrees here right now so i would think that the tempeture is not a factor .but to answer your other question it is loaded with a drag box .

thank you guys for alll of your help
 
Yes the inspection plate it the one with the dip stick. Another thing that will help a lot is if you have or buy an I-T FO-4 manual it has a lot of good info and better yet pictures of the control valve etc.
 
so my next question is there away to blow are through the system to remove the blockage every thing seems to be moving properly
 
(quoted from post at 18:06:47 01/10/14) so my next question is there away to blow are through the system to remove the blockage every thing seems to be moving properly
Click to expand...

Not without a lot of unnecessary work. IF it appears the valve has crud in it remove the spool and clean as best you can in place. When and if that doesn't work we can discuss escalating.

TOH
 
do i remove the top plate that the seat is bolted to as a way to access the "spool" and what part is the spool exactly i will do a seach and try and locate a topic that has direction on how to remove the speel .
you guys are great thanks for the help.
 
(quoted from post at 18:59:06 01/10/14) do i remove the top plate that the seat is bolted to as a way to access the "spool" and what part is the spool exactly i will do a seach and try and locate a topic that has direction on how to remove the speel .
you guys are great thanks for the help.
Click to expand...

The spool is the cylindrical object in the base of the pump that is moved in and out by the control linkage. It can be accessed from the inspection port.

TOH
 
ok i understand now i will give that a shot and have already drained all of the old oil what oil would you recomend i use to refill ?
 
ok im lost now took the bolts out of the bottome where the big drain plug is and still canot remove anything also there is nothing i can see to remove through the small inspection cover i took off .
 
(quoted from post at 19:49:57 01/10/14) ok im lost now took the bolts out of the bottome where the big drain plug is and still canot remove anything also there is nothing i can see to remove through the small inspection cover i took off .
Click to expand...

Put the bolts back in - they hold the pump in the tractor!!!

First step is to verify the spool is moving full in to full out. The spool is in the base of the pump directly below the PTO shaft - see picture. Working through the inspection port push/pull on it to verify that it is moving in and out of the hole in the base of the pump.

If becomes necessary to remove it disconnect the linkage from the "T-thingy" on the end of the spool and pull the spool out of the hole in the base of the pump. I have never tried to do that through the inspection port but it shouldn't be too difficult.

TOH

Spool.jpg
 
STOP. BUY the I-T FO-4 manual before you do any thing else. At this point your about to get your self in big trouble and if you keep it up you may find it will cost you a whole lot of $$ because your jumping before looking
 
I had a neighbors tractor that the lift would not go down.

It turned out that the control valve bushing had both of the exhaust ports blocked with some sort of plastic material. Probably from an oil can?

Had to remove the bushing and dig out the plasitc material. It was really packed in !

Zane
 
man you guys are the best!!!!!!!
thank you so much for all of the help did exactly what you said took the cover off and the bottom of the case was super dirty cleaned everything took the stuff apart cleaned it really well put it back together new gear oil and what do you know works just like new !!!!
thanks again guys life time memebr now for sure super pumped!!!!
 
When your tractor was built it was filled with 90 wt GL1 oil. Kinda hard to find. Actually, CNH now recommends UTF that meets Fords 134D specs. This oil can be found at WalMArt and others. NAPA still has the GL1 last time I checked.
 
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