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Highpocket's lift revisited....

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high pockets

05-14-2008 18:16:20

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need more suggestions guys.....

first post here...

Link

The starter issue mentioned in the above post seems to be corrected now with a 2nd new starter button for front base of dash.

The lift however.... is still constanly raising no matter what position the touch control is in. If I turn the PTO on.... the lift raises, regardless.

Now.... I've removed the right inspection plate and stuck my hand down in the goooo of the fluid to feel around and check the control valve.... as shown in Sean's picture...

third party image

it's in place and the ends of the forks are in place on the ends of the control valve.

While I had the inspection plate off I checked that moving the touch control lever was actually engaging and making the forks move inside, as Sean suggested.... and it does.

I'm kind of boggled.

Like I said.... if the PTO is turned on.... the arms raise regardless of where I have the touch control at. The only way to keep it from lifting is to turn the PTO off. Once it's up.... it's a BEAR to get back down. It has to be forced down by hand. I'm 6'2", 240lbs and it's somewhat difficult to do.

When it comes up it doesn't seem like a smooth, fluid, hydraulic piston kind of movment. It seems almost mechanical in that it seems like the lift is coming up via a gear on gear method in the way it sounds & feels.

Any other thoughts / suggestions?

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nondem

05-16-2008 11:06:49

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Re: Highpocket's lift revisited.... in reply to Jim SC, 05-14-2008 18:16:20

Dunk said: (quoted from post at 11:45:12 05/15/08)

That pic has hugely increased my understanding of how the system works.
Thanks for posting....even if you are a Harley fan...:)

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high pockets

05-15-2008 19:04:16

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Re: Highpocket's lift revisited.... in reply to high pockets, 05-14-2008 18:16:20

well... I have some improvement, but it's not perfect yet.

I did check the valve again as per Dunk's suggestion I think it was.... that it was indeed moving in and out..... and it is.

I piddled with it some and now it's not raising itself while the touch control is in the down position. That's an improvement. About 50% of the time it will go down easily with just a little weight on it. The other 50% it's hard as HE double hockey sticks. unless it comes to the full up position where the arms swing in close and such..... then it goes down easy.

fella over in town thinks maybe it was airlocked.... and just need to work it a bit.

I dunno..... but it's an improvement over last night.

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Sean (TX)

05-15-2008 13:05:46

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Re: Highpocket's lift revisited.... in reply to jscook in MS, 05-14-2008 18:16:20

Dunk said: (quoted from post at 10:45:12 05/15/08)

Good one it is in my photobucket now 8)

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JMOR

05-15-2008 10:17:43

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Re: Highpocket's lift revisited.... in reply to Jim Broughton, 05-14-2008 18:16:20

high pockets said: (quoted from post at 11:50:15 05/15/08)
Now Dunk..... . that is impressive. Where'd you dig that up?

You might say that when you want info on an N's hydraulic 3 pt lift, you look to the source, Harry, not to Henry. See my related post with link.

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JMOR

05-15-2008 09:08:24

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Re: Highpocket's lift revisited.... in reply to Sean (TX), 05-14-2008 18:16:20

Scanned it from I&T FO-4 that is so old that it has a $2.00 Tractor Supply price sticker on it.

That control valve is dual purpose, as you probably know. When moved to the rear of tractor, releases/exhausts pressure from lift cylinder (which your apparently isn't doing) and when pushed forward (into the pump housing, it closes the cyl exhaust path & opens the Intake to the pump, allowing it to pressurize the cylinder. At the mid-point(neither IN or OUT, both the Intake and Exhaust paths are closed.

See link for animation of valve operation.
Link

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Dunk

05-15-2008 08:56:41

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Re: Highpocket's lift revisited.... in reply to high pockets, 05-14-2008 18:16:20

I found it on the net somewhere, a while back.

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GB in MT.

05-15-2008 09:06:33

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Re: Highpocket's lift revisited.... in reply to Dunk, 05-15-2008 08:56:41

Dunk; I don't care WHERE ya got it, thanks for posting it!!!!! Even I can understand the hydrol. , when it is done like that.!!!!! !

Gary :)

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high pockets

05-15-2008 08:50:15

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Re: Highpocket's lift revisited.... in reply to Ed S. (IL), 05-14-2008 18:16:20

Now Dunk..... . that is impressive. Where'd you dig that up?

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Dunk

05-15-2008 08:45:12

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Re: Highpocket's lift revisited.... in reply to high pockets, 05-14-2008 18:16:20

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high pockets

05-15-2008 08:44:36

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Re: Highpocket's lift revisited.... in reply to high pockets, 05-14-2008 18:16:20

Zane - thanks for the thought on the spring. I'm pretty sure it's ok. If I recall correctly it was a pita to get stretched and put back when I replaced the pump. Plenty of tension I think, but I will check it again when I pull the inspection plate again tonight.

JMOR - I understood what Dunk was talking about but thanks for the clarification. I appreciate it. Where did you pull that picture from? I know it's in either the FO4 or the MPC but that looks like you pulled it from something online... or did you scan it?

Thanks for all of the replies everyone... .I really appreciate it. This evening when I get home and the wife is out with her gf's I'm going to get some quality time with the N and try to get this issue resolved.

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JMOR

05-15-2008 07:43:36

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Re: Highpocket's lift revisited.... in reply to Colin King, 05-14-2008 18:16:20

The item Dunk is talking about. Make sure the 'body' part (11) is moving & not just the "tee", spring, etc.

third party image

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ZANE

05-15-2008 04:59:06

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Re: Highpocket's lift revisited.... in reply to high pockets, 05-14-2008 18:16:20

There should be a spring attached to the front bottom of the ram cylinder and the other end to the knee or middle of the control rods. If this spring is missing, broken or lost most of it's tension over the years the control rods can't move the control valve when the touch control handle is moved.

Check it out!

Zane

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Sean (TX)

05-14-2008 19:00:16

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Re: Highpocket's lift revisited.... in reply to Jaybird44, 05-14-2008 18:16:20

Try adusting the quadrant then. 4 bolts..The FO-4 covers it.

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high pockets

05-14-2008 18:56:06

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Re: Highpocket's lift revisited.... in reply to Jaybird44, 05-14-2008 18:16:20

Sean (TX) said: (quoted from post at 21:44:43 05/14/08) Another thing that wont hurt...If the sump is full of sludge....Undo the fork from the valve and drop the pump... clean the pump and sump. If junk and crude is getting in the valve it wont seat and cause your lift problems too...

newp newp.... no sludge. In the process of cleaning this ole N up... I pulled the old PTO and replaced it with the new standard size and cleaned everything out good. The pump is a replacement purchased from John Smith that was functioning and ready to bolt in and go to work when I received it from him. The entire rear end and pump area were pretty squeaky clean when I buttoned it up.

The more I think about it.... I'm leaning to yours and Dunk's earlier thoughts.

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Sean (TX)

05-14-2008 18:44:43

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Re: Highpocket's lift revisited.... in reply to old, 05-14-2008 18:16:20

Another thing that wont hurt...If the sump is full of sludge....Undo the fork from the valve and drop the pump... clean the pump and sump. If junk and crude is getting in the valve it wont seat and cause your lift problems too...

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Sean (TX)

05-14-2008 18:36:16

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Re: Highpocket's lift revisited.... in reply to JoePilot, 05-14-2008 18:16:20

See where it bolts on? 4 bolts and the hole's are slotted...Its pretty sensitive..Took some time to get it right...

third party image

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souNdguy

05-14-2008 18:33:00

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Re: Highpocket's lift revisited.... in reply to high pockets, 05-14-2008 18:16:20

I'm with dunk.. if lift is going up.. intake part of control is staying open.. which means your 't' thingy aint moving it correctly.

soundguy

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Sean (TX)

05-14-2008 18:27:34

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Re: Highpocket's lift revisited.... in reply to old-9, 05-14-2008 18:16:20

Have you ever adjusted the quadrant? I replaced the one on my 9N took some time to adjust it...I maybe way off too? $4 bolts you can slide it forwards and backwards...

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Dunk

05-14-2008 18:20:31

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Re: Highpocket's lift revisited.... in reply to high pockets, 05-14-2008 18:16:20

The part to the pump side of the spring isn't moving, it is stuck.

Make it move.

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