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Old 04-11-2012, 05:12 PM   post #1 of 11
elalr
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Default naa hyrdaulic lever adjustment.

how do i adjust the hydraulic linkage inside the housing? i have the housing off to replace the cylinder and i cant figure out how long to set the linkage. please help!!! i have to have it together tonight!
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Old 04-11-2012, 08:13 PM   post #2 of 11
elalr
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Help Re: naa hyrdaulic lever adjustment.

well its all put together and it raises but has no power. it barely lifts me 200lbs. any ideas?
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Old 04-12-2012, 11:58 AM   post #3 of 11
JohnW
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Default Re: naa hyrdaulic lever adjustment.

Leak, lift cylinder seal may be got cut when installed or cover oring when you set the cover on. Just speculating...
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Old 04-12-2012, 03:24 PM   post #4 of 11
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Default Re: naa hyrdaulic lever adjustment.

is the cover o ring a standard o ring? there wasnt any on it when i dissassembled it but it wasnt working. i bought this tractor with a sherman power digger in it so no 3 point in service. when i took it off and put arms back on it it didnt work. i opened it up and found the yoke on the control valve was broken. i replaced the whole valve and cylinder with a salvage one. i made a new case gasket out of gasket material and tried an o ring in the case but the oring didnt seem to fit very well so i took it out. could the gasket material be too thick? maybe i need to try the oring back in it. thank you for helping me! i really need to get this going.... yesterday!!

Last edited by elalr; 04-12-2012 at 04:26 PM. Reason: typo
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Old 04-12-2012, 06:38 PM   post #5 of 11
elalr
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Default Re: naa hyrdaulic lever adjustment.

ok i went through all the adjustments by "zane" (i think) and not better. the pump lost prime again. iv replaced all the o rings i can find and gaskets, i dont see any leaks. i chained the arms down and dont see anything coming down from the cylinder or relief valve or anywhere. i have what appears to be a relief valve on the front of my pump i took it apart and inspected it for debris and found none so i re assembled. i think its a vane pump. could it be the culprit? it whines at a higher rpm.
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Old 04-12-2012, 08:57 PM   post #6 of 11
elalr
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Default Re: naa hyrdaulic lever adjustment.

i have only 200 psi pressure at the plug under the seat. pump is bad i guess.
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Old 04-13-2012, 08:54 AM   post #7 of 11
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Default Re: naa hyrdaulic lever adjustment.

The cover oring just sits in cutout in the housing where the oil comes up, now as for the gasket it should be a thin paper gasket and best to get a ready made one so that you have the correct thickness.

Now for the bad news, yes it could be your pump and I would fro sure check that out first. BUT it could also be the metal line that carries the presurised oil back to the hydraulics leaking. It is a metal tube that goes though the bottom of the transmission and if there has been a lot of moisture in there then it will be rusted. I know because my 850 had this same issue and I had to split and replace the tube, actually both the supply and pressure had to be replaced.
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Old 04-13-2012, 09:29 AM   post #8 of 11
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Default Re: naa hyrdaulic lever adjustment.

i had it drained and cleaned out all the sludge. i didnt see any rust or splits but im going to do it again. i didnt check the relief valve at the bottom of the sump. i thought the relief valve was on the valve/ cylinder area. i took the vane pump apart and found and removed part of an o ring in it. all of the vanes looked fine (very little wear) and moved freely. i always thought a vane pump didnt wear out as long as all the parts are free and clean it should pump. i re-assembled no change. i think your right about the leak somewhere or the real relief valve. thanks
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Old 04-15-2012, 01:44 AM   post #9 of 11
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Default Re: naa hyrdaulic lever adjustment.

Some info to read on adjusting the NAA Hydraulic controls.

http://collectible-stuff.com/Tractor...Adjustment.pdf
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Old 04-15-2012, 01:25 PM   post #10 of 11
elalr
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Default Re: naa hyrdaulic lever adjustment.

Quote:
Originally Posted by SandDawg View Post
Some info to read on adjusting the NAA Hydraulic controls.

http://collectible-stuff.com/Tractor...Adjustment.pdf
thanks for that info! i got it all adjusted and still weak. i took out the relief valve and had both springs broken inside. its no longer available from the stealership so i guess its salvage yard part for $125 or ebay for $54 and have to wait on it. i need it together pretty bad but hate to gamble on used part.
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Old 04-15-2012, 02:22 PM   post #11 of 11
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Default Re: naa hyrdaulic lever adjustment.

Not sure if these are the springs you need in this Hyd. Kit??? ($59.00 Bucks)

http://www.steinertractor.com/ABC156...ump-repair-kit

If you call Steiner's tractor Parts I'm sure they could overnight the parts and find the correct parts you need.

SD
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2012 TYM T-233 with FEL
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