I am a new owner of a 1940 ford 9n. Is the hyd. lift supposed to hold your implement in the raised position with the clutch engaged? Thank you.
Otto
 

What do you mean by "engaged"
if you mean pedal is depressed then it may or may not depending on the overall condition. If it drops real quick when pedal is depressed you probably need some work done to it.
I would suggest that you get a copy of the FO-4 service manual.
 
(quoted from post at 22:52:40 03/27/14) most all will slowly drift down

Probably true, but one in good shape will not visibly move down. I've never seen mine move down at all.

Having said that, I never leave an implement up when I'm not using the tractor. This is for safety reasons--I don't want a kid lowering an implement onto another kid (or their own foot, etc.), as they can be lowered with the engine off. So they've never been left up with the engine off (or clutch engaged) for more than a few minutes--but they haven't visibly moved in that amount of time.

I presume a previous owner must have rebuilt the hydraulic pump and/or piston, since 65 years of wear should be enough to make it drift down...

-Paul
 

I don't leave my up for the same reasons you mentioned. My problem is when I go down the road with my bush hog and come to a stop sign or light, my hog drops to the roadway. I have been chaining the unit up to avoid the problem. Being a new owner I don't know if it should stay up or not.
 
Hey Otto,
I"d say that if it drifts down when depressing the clutch to stop isn"t normal. I"m an 8N owner, but from what I"ve read, they should all stay up for a good while before they drift down. Sounds like you have a lift cylinder leaking past the rings and need a rebuild to stop that. Not a hard task, but pulling the lift cover is required. If you"re lucky, replacing the rings, (if it is the original 3 ring piston) or the "O" ring and wiper if it"s been changed out.
At any rate, the FO4 manual is a must for these great old machines. If you decide to do the repair, make sure you inspect the lift cylinder bore, any bad grooves is an indication that the cylinder needs replacing too.

HTH...

Good luck and God Bless,
Roger
 
Look inside like others have suggested--occasional
drip from the top is not unusual..Be sure to check
the safety relief valve--had two in arow, close
together a few yrs ago that dropped quick after
pressing the clutch to shift....Both had bad safety
valves--replaced SV and both still working fine
today..
 
Ford had a little gadget called a Transport Lock that holds the 3 pt
up regardless of the hydraulics which is terribly handy. Red Rock
makes a nice copy, though it isn't too hard to make one.

I think there's a copy of the directions from it at the other site.
 

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