Power in one direction! I rebuilt my power steering cylinder that was leaking doing it with a valve seal kit, that was a total success(no leaks)it works like a charm in one direction but I have to use muscle power the other. I've taken it off several times to see if the spool is binding- which it seems not to. Should I be looking at the valve housing for rebuild next? I did strighten the drag link some. Your expertise is appreciated.
- Thread starter stephen1
- Start date
Old Magnet
Member
Try these bleeding instructions:
Fill reservoir and run engine @1500 rpm.
Operate the steering pump fast by spinning the steering wheel with one finger as rapidly as possible.
If this does not activate the valve spool, raise up the front of the tractor and rapidly deflect the front wheels by hand.
Work the steering wheel from full left to right until all the air is bled out of the system.
Fill reservoir and run engine @1500 rpm.
Operate the steering pump fast by spinning the steering wheel with one finger as rapidly as possible.
If this does not activate the valve spool, raise up the front of the tractor and rapidly deflect the front wheels by hand.
Work the steering wheel from full left to right until all the air is bled out of the system.
What type steering does your 530 have, there were at least three different types. Is it AG, or a utility model, they are all different from one another. Where is the cylinder located. Old magnets advice is good for a utility model Loader Backhoe with the two small cylinders mounted to the wishbone and hooking directly to the steering arms on top of the spindles but that was not an ag front end. Help us by letting us know what type you have. mEl
It's actually a single cylinder located between the to wheels on a heavy duty front axle. It has two hydraulic lines that enter a valve housing side by side, I used a valve seal kit to rebuild the spool that sets inside this housing where I experienced an earlier leak. I found the re-build kit from CNH parts under 530 Case Ag & Utility tractor prio to S/N 8262800 or 1/60-12/64.
If I am correct you have the cylinder that mounts ahead of the axle and has the actuating link fastened to a ball joint right in the cylinder and the valve bolts to the end of the cylinder assembly and the rod has washers, rubbers and a nut to secure it through the rod end bracket. As you describe it I am sure that something is restricting the spool from traveling in one direction. If you had it apart, as evidently you did to reseal it tou may have to take another look at it to see what is restricting the spool valve from moving in the other direction. I have been in your shoes on that cylinder so don't feel bad. mEl
Cyl is fig 262, nut 24 is the adjustment for spool travel, pin 23 is inserted thru holes in 24 and a slot of spreader bolt 22 for the valve actuater.
The pin is easily broken as it can drop out of place in reassembly and be sheared. Take the drag link off and move the actuator in both directions with a screwdriver engine running. If the cyl doesn't actuate in one direction indicates the pin is broken. In any case you are going to have to take it apart, nut 24 may simply be out of adjustment.
Joe
The pin is easily broken as it can drop out of place in reassembly and be sheared. Take the drag link off and move the actuator in both directions with a screwdriver engine running. If the cyl doesn't actuate in one direction indicates the pin is broken. In any case you are going to have to take it apart, nut 24 may simply be out of adjustment.
Joe
That's why I use so much grease to hold things together until bolted up. Broken pin is most likely but just one of the things to go wrong. Main thing is get the spool centered with the adjustment nut and keep the pin in place.
This pin is the last one I had apart about 4 yrs ago. I use a drill bit also.
Seems like amost everyone breaks the pin first time. Of course you and I never broke one, no siree, never happen! Isn't that right mEL? ... mEL? ... mEL? ... dang where did he go?
Joe
This pin is the last one I had apart about 4 yrs ago. I use a drill bit also.
Seems like amost everyone breaks the pin first time. Of course you and I never broke one, no siree, never happen! Isn't that right mEL? ... mEL? ... mEL? ... dang where did he go?
Joe
(quoted from post at 16:38:43 05/18/11) That's why I use so much grease to hold things together until bolted up. Broken pin is most likely but just one of the things to go wrong. Main thing is get the spool centered with the adjustment nut and keep the pin in place.
This pin is the last one I had apart about 4 yrs ago. I use a drill bit also.
Seems like amost everyone breaks the pin first time. Of course you and I never broke one, no siree, never happen! Isn't that right mEL? ... mEL? ... mEL? ... dang where did he go?
LOL.
Joe
Cariboo4x4
Member
(quoted from post at 05:39:39 05/26/11) I'm ready to reinstall the steering cyliner but do not have the spec for "nut 24" which is the adjustment for spool travel - I believe I had it to tight originally.
Is there a case or CNH part number for the control valve seal kit?
Cariboo4x4
Member
Just read a post that rebuild kits are no longer available. Any tips about how to take spool and control valve apart? I suspect oil is leaking into spool. I saw atf dripping from grease fitting today and upon removal of grease fitting the ball in end of fitting was missing. I added a new grease fitting yet suspect atf is going to leak even more once its under pressure and heated up.
Cariboo4x4
Member
Thank you!
Cariboo4x4
Member
YT sent me this email:
Thank you!
G45056
The kits to restore the G45056 cylinder for the power steering are:
G45077 Kit-valve seals
G45078 Kit-ball stud
G45079 Kit-cylinder seals
[/quote]
Thank you!
G45056
The kits to restore the G45056 cylinder for the power steering are:
G45077 Kit-valve seals
G45078 Kit-ball stud
G45079 Kit-cylinder seals
Cariboo4x4
Member
G45056
The kits to restore the G45056 cylinder for the power steering are:
G45077 Kit-valve seals
G45078 Kit-ball stud
G45079 Kit-cylinder seals
https://photos.yesterdaystractors.com/gallery/uptest/a97930.jpg
The kits to restore the G45056 cylinder for the power steering are:
G45077 Kit-valve seals
G45078 Kit-ball stud
G45079 Kit-cylinder seals
https://photos.yesterdaystractors.com/gallery/uptest/a97930.jpg
Cariboo4x4
Member
YT sent me the tractor shed picture. Not sure how steering part numbers were sent to me by.
Cariboo4x4
Member
I believe you adjust the small nut #10. I'm figuring out how to center my valve spool presently. Did you ever figure it out?
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