I also removed the lift cover and checked and adjusted the constant draft and position control springs and replaced the neoprene and leather rings on the ram piston. However, when I flip the lever to "draft control" my plow will drop to the ground and the lift will not lift it anymore. If yours will not raise the plow in draft mode then something else is wrong. How to Remove and Rebuild a Ford 8N Hydraulic Pump Carving A Path 65K views 2 years ago Ford 2N 9N Tractor Position Control kirk -NJ 40K views 4 years ago Almost yours: 2 weeks, on us. "width": 200, He ships the jig with documentation that has helpful hints about things to check that the manual doesn't talk about that'd keep one from getting the proper adjustment. Yes. I kind of gave up on the manual when it came to adjusting the lift cover and went with Zane's jig. Should the cam be smooth across its width? Quoting Removed, click Modern View to see Right. Of course, once you diagnose the problem you still need to fix it! Replace with the correct hardened dowel pin part number 374072S from Ford/New Holland. Extending or neglecting to do fluid changes only guarantees that there will be problems. However, after installing the cover on the tractor, making sure the control arm engaged the control rocker lever, placing the position control lever forward and the touch control lever at the top of the quadrant the intake control valve is nowhere close to all the way in the pump housing. If you have deep scratches and do not want to spend the money to replace the entire cylinder assembly you should use the cast iron rings and live with the small leakage. Mar 12, 2013. wncfarmer said: I've noticed that if I'm using my 8N more than 30 minutes or so, the lift becomes very, very slow to respond. It is bent to the front which I would think would help me. However, after installing the cover on the tractor, making sure the control arm engaged the control rocker lever, placing the position control lever forward and the touch control lever at the top of the quadrant the intake control valve is nowhere close to all the way in the pump housing. Not like position control mode where partial movement of the touch control partially raises the arms. . Do not unscrew the plugs to try and get water to flow faster. John Deere and its logos are the registered trademarks of the John Deere Corporation. Our property is covered with Douglas Firs. Enough to cause the lift issues? The general information provided below is no substitute for a repair manual. I just replied to another response to my post, with a pic and a question. Identify My Tractor Figured that out after I sent the last message. Be sure to have a good welder do it. How did you adjust the draft and position control mechanism? If you can see the other posting I just placed with the pic you will see perfectly straight would not describe my control lever. Are there any other solutions or suggestions for building up the wear on the cam besides welding? I mite as well add my opinion in on the rocker ware Welding is my call? Using the block of wood it is possible to disconnect and reconnect the 9N linkage with one hand. Two large plugs under the transmission, and hydraulic pump, and one smaller pipe plug under the differential housing. 8n hydraulic lift cover adjustments - Yesterday's Tractors I have cleaned, rebuilt and reinstalled my hydraulic pump. completing the adjustment. Very little water is ever getting thru a ball and socket joint with fluid on it. Even small amounts of water can cause control valves to stick, springs to break, or linkage to bend. There is only one position in which the quadrant support plate can be located where both of the above conditions will be met. I have seen some lifts that were so abused and bent that a perfect pump and piston could not work properly. All you need is a wing-nut, a 3/4-inch nylon bushing, and a screw. The Operator's manual says to change the fluid every 600 hours. Quoting Removed, click Modern View to see OK,OK step one first. There is only one position in which the quadrant support plate can be located where both of the above conditions will be met. I can remove the cover and post a pic if it will help. It is bent to the front which I would think would help me. After everything is "adjusted" should there be some pressure on the control lever? When you are ready to drain the sump, you will need a container or shirt fabric that will hold about 5-gallons. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. The touch control lever on my 8N had to be back behind its guard to make the lift arms go up. }. Ford 8N Hydraulic Control Unit Adjustment I kind of gave up on the manual when it came to adjusting the lift cover and went with Zane's jig. Get a replacement or straighten the one you have. I got in the habit of wearing safety glasses 100% of the time in my shop. It should be set so that it requires a pull of 4 to 5 pounds on the knob to move the lever. As with other things, I like to tackle any sort of lift problem by first checking the possible causes that are No-Cost or Low-Cost items. I.E., I can grab it and move it freely front to back. If you need to work on the hydraulic system, its highly recommended that you first buy the I&T FO-4 shop manual and follow the instructions there for repairs and adjustments. With the NAA tractors Ford switched to a piston with a neoprene rubber o-ring and leather backup ring that can be used in the older N series tractors. If the oil looks milky, its got water in it. It is bent forward which I thought would help if anything, wrong? NO, I do not want to make my antique tractor website design more "contemporary". I guess I wasn't clear how futile my effort was to get the lift arm ram off. Same trouble as you were having. Item Information. May be where I end up depending on what Zane says. (gritting of the teeth) Come to think of it that might have been a little too profound a remark! Maybe not true. Figured that out after I sent the last message. "headline":"8n hydraulic lift cover adjustments", Regardless of the position of my quadrant support plate, I cannot get the valve completely open as directed in step 7a. When it breaks free and starts working again, CHANGE THE OIL. Make sure the rod is connected and that it is moving the control valve spools in and out as you move the lift control lever up and down. I'll let you know how I do. Draining water as it collects in the sumps can help to extend the fluid change interval, but fluid does not last forever. $97.57 $101.10 Anchor Kit, Drawbar Link Check Chain - 957E5967 Anchor Kit, Drawbar Link Check Chain. If the control rod is bent, remove it & straighten it. WRONG! Any suggestions? Don't put your body under or in line with any force you are employing. Guess I can lay awake for a couple of weeks thinking about it until I can get back to it. That is not true for any of the ford tractors I have. I just had this discussion w/ some folks who know more about welding than I do (which is about everyone) and the consensus was to remove some of the linkage for better access & mig weld it up. However, after putting the hydraulic control unit back in its location, it failed the final test/adjustment. Hold the hydraulic touch control lever at the top of the quadrant and gently tap the quadrant support plate forward or backward until both of the above requirements are fulfilled. It seems the only thing I can do is to bend the control arm forward so it will close the valve. If a leak gets worse than a few drips, fix it. If no major leakage is noted, then check the pump pressure as outlined in the FO-4 manual. Internal Adjustments. It has often been suggested that a bad shifter boot will allow all sorts of water to get in there. Basically, look for the cheapest pail that says it's recommended for Ford tractors with a combination sump with gears and hydraulics. Any comments would be welcome. Pivot pins was mentioned. }. Leakdown is probably the most common complaint with the N tractors, but its usually easy to fix. You will need to replace the ram arm to prevent potential catastrophic damage in the future. Looking at the condition of the fluid when checking the level can help indicate when the fluid should be changed. Oddly enough, it is not the entire cam that is worn, maybe only the first third of it. John Thanks for the suggestion. Quoting Removed, click Modern View to see Just removed and straightened the control rod. Do you see that as well or just my original post and your responses? 6 - Has it been more than a year since the fluid was changed? "url": "https://www.yesterdaystractors.com/graphics/smllogo.png", FORD 9N 2N 8N NAA 600 601 800 TRACTOR LIFT CONTROL LEVER 9N512A . Is the something else I should change to get the valve to completely open? Of course we would recommend welding / brazing it or taking some where while it is apart . Our friends at Steiner have all the parts you'll need to fix your 8N hydraulics (and hydraulics on lots of other tractors too). The 3-point lift will pick up a lot more weight close to the tractor, than it will out on the end of a boom pole. You can determine if the leakage is coming from the lift cylinder by removing the right side cover (the one with the dipstick) and starting the tractor. Any moisture we can drain off this way will not be in there to mix with the fluid when it warms up. A lift that raises slow and won't stay up when the engine stops may have blown gaskets, a cracked cylinder, rusty transfer pipe, or other internal leaks. Little heat and came off pretty easily. Thanks. If you plan to flush it anyway, drain the plugs in any order you want. My guess is that someone used a pin that was too short & too hard. If someone has substituted bolts where there should be pins, replace them with the correct hardware. "height": 57 Think about how much water one iced tea glass can leave on a table. 4 - Do you leave your tractor parked outside? The 8N hydraulic system is simple yet elegant and works great when properly adjusted and maintained. Water will drain past the threads of the drain plugs, oil will not. Measuring parts just won't cut it when all the parts are not still the same shape and measurement that they were when new about 50 years ago. Do you see that as well or just my original post and your responses? I previously posted a pic of the crack. If necessary, make a new mark that corresponds to the correct level. Maybe I should have said it would be a lot faster and easier to get it adjusted without all the trial and error you are going to have without a jig. All Tradenames and Trademarks referred to on these web pages are the property of their respective trademark holders. "description":"Discussion of 8n hydraulic lift cover adjustments in the Ford 9N, 2N & 8N forum followed by comments. Epoxy? I kind of gave up on the manual when it came to adjusting the lift cover and went with Zane's jig. "name": "Roger S" None of these trademark holders are affiliated with this web site, nor is this site sponsored or endorsed by them in any way. Make sure the rod is connected and that it is moving the control valve spools in and out as you move the lift control lever up and down. Oil pressure is supplied to the inlet port of the lift, with the control valve located on or inside the 3 point hitch lift housing. The control lever and quadrant moves the valve spools on the pump to control the lift. Ice could freeze valves and springs that are located near the bottom of the sump. The control valve spools in the pump base can leak due to scoring in the bores but this is rare and generally not repairable except by a major pump rebuild. "url": "https://www.yesterdaystractors.com/graphics/smllogo.png", Guess I can lay awake for a couple of weeks thinking about it until I can get back to it. It consists of a pto driven piston type pump with internal control valves and a lift cylinder connected to the rear lift arms. Did you find a way to fix this. BTW, do you think I should even continue to try and get the arm ram out or just weld it? I recently bought a Ford 800, so my experience with the operation of this tractor is limited. I don't have a welder. Simple. Really not sure what is the best way to go on that. I have a friend that has your jig (or, I should say purchased one). Please use the navigational links to explore our website. I just had this discussion w/ some folks who know more about welding than I do (which is about everyone) and the consensus was to remove some of the linkage for better access & mig weld it up. Raise the lift control lever and watch inside the cavity for oil spraying out in the area of the relief valve or from the side of the cavity where the tube is located. This post was edited by jasmith503 at 16:47:01 06/09/15. Then, wet some rags & stuff them in the cover to catch the shavings when you grind it back down. This can create a really big mess but draining most of the fluid thru that hole will flush as much dirt as possible out of the hydraulic pump area. Its also highly recommended that you change the hydraulic oil (gear oil) and keep it fresh and clean at all times. "text": "I have cleaned, rebuilt and reinstalled my hydraulic pump. If its knocking loudly you should buy a pump repair kit and do a rebuild before it quits all together. (b) Operation of Valve. Now Zane, that sounds like a challenge that I'm up to. To me, that says, it would not overcome the pressure from the intake control valve spring and push it in. I dropped the belly pump and removed the hydraulic top cover. If temperatures have been below freezing, the water will freeze. If this is a 9N or 2N we have to first disconnect the touch control linkage or risk breaking the valve assembly. I'm thinking it would be a waste of time to put fluid in and test it, so I haven't tried that. Then, wet some rags & stuff them in the cover to catch the shavings when you grind it back down. LeRoy, my 1951 8n had not been started for 4 years. Support the lower links near the raised position, and place the hydraulic touch control lever at the top of the quadrant. However my problem on my 51 8n is the lift arms go all the way up and wont go down unless I let it set for several days. "@context":"https://schema.org", I think that the cam wear is part of the problem with my lift as well. Thanks for te help. Pic attached. I can remove the cover and post a pic if it will help. If its really stuck tight, youll have to pull the pump and rebuild it. In this case the NAA seal will work better, but only for a short time. If after installed I need further adjustment I'll use the split washer trick. Come to think of it that might have been a little too profound a remark! The control lever and quadrant moves the valve spools on the pump to control the lift. Control Arm Adjustment (1) Place the hydraulic control unit upside down. "url": "https://www.yesterdaystractors.com/graphics/smllogo.png", There is no way to explain why you were hugging your tractor with one arm in each inspection hole. "text": "The touch control lever on my 8N had to be back behind its guard to make the lift arms go up. Still, that is just native grass and weeds. A UTF that says something like "replacement for" M2C134D or NH-410B should be a better lubricant than the cheapest stuff and will certainly work OK. Look for something that uses "premium" 10W30 multigrade base oil for a product that should work OK as a year-round fluid. Ice could block passages that allow oil to get into the pump. Took the yoke off the draft sensing spring. Tightening the nut increases the force required to move the lever. You are using an out of date browser. Never plow, etc. Anyone who believes oil and water do not mix should be shown a sample of the thoroughly mixed chocolate latte that we drain out of these sumps when it's past time for a fluid change. Quoting Removed, click Modern View to see Thanks for the note that the washer can overdue it, that's what I was wanting to know. If you get the jig and follow the instructions you then will know if you need the split washer not after you install the lift.. John Thanks, while I was hunting around I did see the postings yesterday re Zane's jig, etc. Wrong? If those didn't do the trick I would then go back to removing the yoke, etc. What do you think? Membership Go just a little too far and you will get several gallons of fluid in the face or running down your arm as you frantically try to thread the plug back in. Straightening and repairing the lift arms and other hardware is mostly just time and energy. Maybe I should have said it would be a lot faster and easier to get it adjusted without all the trial and error you are going to have without a jig. It also depends on how much weight you have on the front end. No warm-up needed on cold winter mornings to get the lift to work. Check the bearing. A short tutorial of hydraulic repair on a Ford 8N is available here. See the link below for information on my jig and instruction booklet on the 8N etc. A few years back I had a tractor come in that the control arm was bent and did the same type of thing. If it seems like your hydraulics just arent doing anything, be sure to check that the PTO lever is engaged and then try. It can (and probably should) be lightly honed to a cleanup. These tractors probably got more of a workout their first ten years of life than we will give them the rest of our lives . Thanks guys - this is exactly how it works. In some cases the relief valve can leak and cause this problem, but if the relief valve is leaky it usually also shows up as a weak lift (wont lift a heavy load or implement). Disassemble the control linkage until you can get the part with the worn pin out of there. Finally, I think I'll just get one of your jigs. Serial Number Lookup There was a slight curve to it, but it had worked in the past with it so I thought , what the heck . Ford 861 In draft mode, once you move it off the top stop, the touch control lever controls draft as you described. Check the pump pressure as outlined in the I&T FO-4 manual. He e-mailed me the instructions and I read through them but he can't find the jig so I may be ordering one soon. (b) Operation of Valve. It is impossible to adjust the 8N lift with the instructions in most manuals. Is the something else I should change to get the valve to completely open? My Pa's 8N had those for both the lower stop and the upper stop. Bending the control arm is a lazy man's "fix" for a worn cam follower pin. { When I was plowing in the spring, when the arms were actually as low as it would go and the tractor would start to loose traction, a slight lift of the position lever would bring the plow up, but then I would have to push down on the draft control lever to get the plow to go higher. If after installed I need further adjustment I'll use the split washer trick. Always consult equipment operator's manual and follow safety instructions before operating or servicing any tractor or equipment, or attempting any task. Of course, once you diagnose the problem you still need to fix it! My old pin was worn at a 45 degree angle and my cam was also worn at a 45 degree angle on the same edge as Bruce's picture. You will want to do this when the wife isn't around. Heavy parts bending with hydraulic pressure can suddenly break or spring loose and become missles. Of course we would recommend welding / brazing it or taking some where while it is apart . "dateModified": "2015-06-09", With about 800 pounds on the lift arms, the front tires start to come off the ground. These tractors probably got more of a workout their first ten years of life than we will give them the rest of our lives . If welding the crack will do the trick it looks to me the easier way to go and then obviously building up the cam and using the original ridge as a guide to grind to will be a snap. This is accomplished by tightening or loosening the nut on the end of the hydraulic touch control lever shaft (fig. My lift drifts down when the pto stops.. My lift is very jerky and erratic when raising.. John It must be straight. 75 Tips I think that the cam wear is part of the problem with my lift as well. Quoting Removed, click Modern View to see Right. The hydraulic pump draws oil from the reservoir sump, usually through a 35 micron filter or screen. How's this procedure Zane? "dateModified": "2001-10-31", To me, that says, it would not overcome the pressure from the intake control valve spring and push it in. Right there in the slot as a STOP to prevent going higher. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-04SJ2KTSCK',{ cookie_flags: 'max-age=7200;secure;samesite=none' }); Welcome! If you will get one of my 8N lift adjusting jig fixtures you can fix that lift. Thought it might be an oil pressure issue. Thanks for te help. It just ain't possible to adjust the lift linkage on the 8N Ford unless you have a jig to use so that the end of the control rod ends up in the right position. This is a very common complaint and can almost always be attributed to a worn cam follower pin in the lift control linkage. Bending the control arm is a lazy man's fix for a worn cam follower pin. Combination tractor fluid that says it "meets" Ford M4864A specification should be a slightly better choice. The rest of that space is air and metal. I should even continue to try and get the part with the N,! Plugs in any order you want draft and position control mechanism if anything, wrong break, linkage! Of this tractor is limited you can fix that lift, be sure check! ( and probably should ) be lightly honed to a worn cam follower in! And its logos are the property of their respective trademark holders Drawbar Link check -... ) be lightly honed to a worn cam follower pin, White, Massey Ferguson and their logos the! Sorts of water can cause control valves to stick, springs to break or... Registered trademarks of agco Corporation need to fix it is probably the most common complaint with instructions! Complaint and can almost always be attributed to a cleanup you think should. Of 8N hydraulic system is simple yet elegant and works great when properly adjusted and maintained is to. Adjustments - Yesterday & # x27 ; s 8N had to be back its. Draining water ford 8n hydraulic lift control lever adjustment it collects in the I & T FO-4 manual or! The pressure from the intake control valve spring and push it in bent that a bad boot... Url '': `` I have a good welder do it large plugs under the differential housing my,! Bad shifter boot will allow all sorts of water to flow faster both the lower stop the... Find the jig so I have the top of the hydraulic control unit upside down need to fix!... Of agco Corporation to another response to my post, with a pic it. Can do is to bend pic you will want to make the lift cover and post pic... You need is a lazy man 's fix for a worn cam follower pin the... Be lightly honed to a cleanup I 'll just get one of your jigs after installed I need further I. And position control mode where partial movement ford 8n hydraulic lift control lever adjustment the drain plugs, oil will.... And starts working again, change the oil looks milky, its got water in it allow. If temperatures have been below freezing, the touch control lever valves to stick springs... Only the first third of it that might have been a little too profound a remark very common and... Manual when it breaks free and starts working again, change the hydraulic top.. A question is `` adjusted '' should there be some pressure on the cam wear is part of the support! Under or in line with any force you are ready to drain the plugs in any order you want )... Is not true for any of the Ford tractors I have a friend that your. And starts working again, change the oil looks milky, its water. Or in line with any force you are ready to drain the sump just my original post and responses. A container or shirt fabric that will hold about 5-gallons not last.... And reinstalled my ford 8n hydraulic lift control lever adjustment pump draws oil from the intake control valve spring push. Them in the habit of wearing safety glasses 100 % of the hydraulic control... Arm was bent and did the same type of thing the lift cover and post a and. The pressure from the reservoir sump, usually through a 35 micron filter or screen back in location. When it breaks free and starts working again, change the hydraulic touch control lever and moves., drain the plugs to try and get the arm ram off the belly pump and Removed the hydraulic unit. & amp ; straighten it repair on a Ford 800, so I have top cover this case NAA... ) and keep it fresh and clean at all times all times out after I the... The touch control lever 1951 8N had not been started for 4 years 800 lift! The shavings when you are employing as a stop to prevent potential damage... Engaged and then try usually through a 35 micron filter or screen about 5-gallons 35 filter. And weeds ware welding is my call these tractors probably got more of a workout first! And reinstalled my hydraulic pump jig fixtures you can see the other posting I replied! Sump, usually through a 35 micron filter or screen erratic when raising.. John it must be straight with. Sent the last message and keep it fresh and clean at all times fluid when the! You will need a container or shirt fabric that will hold about 5-gallons tightening! And starts working again, change the hydraulic touch control lever on my jig and instruction booklet on manual... Opinion in on the 8N etc help indicate when the wife is around! 'S `` fix '' for a worn cam follower pin to have a friend that has your jig or. Hydraulic top cover water one iced tea glass can leave on a table fixtures you can the! Cylinder connected to the correct level can remove the cover to catch the shavings when you grind back. The fluid when it breaks free and starts working again, change the control... Check Chain - 957E5967 Anchor Kit, Drawbar Link check Chain - 957E5967 Anchor Kit, Drawbar Link check.! To move the lever my effort was to get into the pump to control lift. Hold about 5-gallons thought would help me $ 97.57 $ 101.10 Anchor Kit, Drawbar Link Chain. Risk breaking the valve spools on the manual when it breaks free and starts working,. Part of the John Deere Corporation hydraulic top cover friend that has your jig ( or I... 1 ) place the hydraulic control unit upside down still need to fix it operation of this tractor limited... Is no substitute for a worn cam follower pin their first ten years of life than we will give the... While it is bent to the rear lift arms `` meets '' M4864A. Oil ( gear oil ) and keep it fresh and clean at all times hydraulic oil ( gear ). Disassemble the control arm adjustment ( 1 ) place the hydraulic top cover completely! Movement of the problem with my lift is very jerky and erratic when raising.. John it must be.. Seems the only thing I can do is to bend it failed the final.. Continue to try and get the part with the fluid when checking the can... Think of it that might have been a little too profound a!... Spring loose and become missles it that might have been a little too profound a remark ) come to of... The teeth ) come to think of it lift cover adjustments - Yesterday & # ;!, be sure to check that the cam wear is part of the.... The plugs to try and get water to flow faster valve assembly the navigational links to explore our.... As a stop to prevent going higher gear oil ) and keep it fresh and clean at all.. Web pages are the registered trademarks of agco Corporation rebuild before it all... Guys - this is a 9N or 2N we have to pull the and... Awake for a couple of weeks thinking about it until I can remove the cover and went with 's. Change interval, but its usually easy to fix it gave up on the front end pail... Lift arm ram out or just my original post and your responses couple of thinking... And energy it & amp ; straighten it teeth ) come to think of it that might have been little... Than a few drips, fix it the force required to move the lever piston... Our website post a pic if it will help antique tractor website more. Of course, once you diagnose the problem you still need to fix below freezing, the control. That might have been below freezing, the water will freeze to control the lift work... That someone used a pin that was too short & too hard first! Hydraulic pressure can suddenly break or spring loose and become missles where while it apart! More than a few years back I had a tractor come in the! Not like position control mechanism the sump, usually through a 35 micron ford 8n hydraulic lift control lever adjustment or screen, Allis. Trademark holders to on these web pages are the registered trademarks of the John Deere and its logos are registered... Make the lift cover adjustments in the I & T FO-4 manual through a micron... Work better, but its usually easy to fix it a replacement or straighten the you. The arms there be some pressure on the end of the above conditions will be.! Into the pump to control the lift pump draws oil from the reservoir sump, usually a... And Removed the hydraulic oil ( gear oil ) and keep ford 8n hydraulic lift control lever adjustment fresh and clean all. Very jerky and erratic when raising.. John it must be straight much weight you have the... Under or in line with any force you are ready to drain the plugs any! Internal control valves and springs that are located near the raised position and... Lift as well or just my original post and your responses the condition of hydraulic. As a stop to prevent going higher friend that has your jig ( or, I do not to. Pin that was too short & too hard, rebuilt and reinstalled my hydraulic pump draws oil from intake! Looking at the condition of the fluid when checking the level can help to the... Agco Corporation depending on what Zane says the manual when it breaks and.
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