I did a lot of work on the first one, so I'm familiar with how they work, but I've never encountered this problem. What do you think? Replace with the correct hardened dowel pin part number 374072S from Ford/New Holland. A "chuckling" sound under load usually means the eccentric cams are worn but the pump can make a lot of noise and still work ok. Shuddering on the upswing usually indicates one or more check valves in the pump are not sealing properly. My cam is not worn anywhere close to the pic that Bruce posted. The scratches or grooves will chew into the new neoprene seal and it will leak worse than ever. "mainEntityOfPage": { This is nearly always caused by the control valve spools in the pump base getting stuck in the bore, most likely due to water or dirt in the oil. Dropping the pump for a thorough cleaning or repairs only takes a few minutes, and only requires a new gasket for the pump housing and PTO bearing flange. Make an honest estimate of the hours your tractor is used each week. Hopefully my wear level is repairable with his cam pin roller modification. Any comments would be welcome. When the pump is new you get a slight knocking as the lift reaches the set height. Most of the time this is caused by shock loading the draft linkage through the top link to the big draft sensing spring. It makes a big difference. 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. I get asked this question frequently, and the answer depends on exactly how you use the lift. That adjustment would work on a lift that was prestine but it ain't! "width": 200, "headline":"8n hydraulic lift cover adjustments", Get to the tough questions and you go all shy on me? 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. How's this procedure Zane? Our friends at Steiner have all the parts youll need to fix your 8N hydraulics (and hydraulics on lots of other tractors too). Wrong? Dean Quoting Removed, click Modern View to see I was wondering if someone had bent it intentionally as a fix . I just replied to another response to my post, with a pic and a question. Same trouble as you were having. See the link below for information on my jig and instruction booklet on the 8N etc. Required fields are marked *. This step-down works in all forward and reverse gears but it was designed to lower first gear ground speed, so the tractor could run a tiller off the PTO shaft. Thus, I removed the hydraulic control unit to adjust it Welcome! I have my lift cover supported by two saw horses with the control lever hanging down and while it does move forward and backward as I move the touch control lever it is never held rigidly in any position. ", { Here are some suggestions to get you started fixing your tractor. 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. You will want to do this when the wife isn't around. Never plow, etc. I thought something was wrong because I expected it to lift in draft control for some reason. Once the pump is getting close, reach thru the drain hole and make sure the linkage isn't wedged against anything. Really not sure what is the best way to go on that. I do see it is bent as well. Quoting Removed, click Modern View to see Right. Now it is only used about 10 Hours a year. Thanks for the suggestion. I don't mind if they mark their territory with an occasional drip. Our property is covered with Douglas Firs. "userInteractionCount": 5 I guess I need to know what the characteristics of the lift are supposed to be in this Draft control setting. See the link below for information on my jig and instruction booklet on the 8N etc. 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. May have nothing to do with my issues but seems dumb to leave it like that. To find this position, slightly loosen the four cap screws that support the quadrant. Look for leaks coming from above. Draining this water is easy to do. "@type": "ImageObject", On the 8N tractors there is only one link that needs to be guided into the pocket on the valve assembly. None of these trademark holders are affiliated with this web site, nor is this site sponsored or endorsed by them in any way. It is critical. This post was edited by jasmith503 at 16:47:01 06/09/15. TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. Quoting Removed, click Modern View to see Linkage bent or adjustments not done correctly. Terms and Privacy Policy, Shows and EventsF/FCA ShowsFeatured ShowsPrevious F/FCA Shows, ServiceMaintenance & RepairsOriginal AccessoriesSherman TransmissionsSpecifications & Data, Equipment RegistryEarly 9N by S/NRoad Maintainer Registry, Restorations150 80N Show Tractor47 8N Restoration8N Funk Conversions8N LawnmowerSOS LawnmowerSt Jude 8n ProjectWorthington Tractors. If yours will not raise the plow in draft mode then something else is wrong. The scrap was cut to 0.375" x 0.75" x 3.75" and wedged between the two linkage arms with one hand, working through the right inspection hole. I think that the cam wear is part of the problem with my lift as well. How did you adjust the draft and position control mechanism? I thought I'd let him have a crack at removing the lift ram arm so I could replace it rather than getting the crack welded. My lift works by itself but not with a heavy load on it.. Its also highly recommended that you change the hydraulic oil (gear oil) and keep it fresh and clean at all times. Any comments would be welcome. Is the something else I should change to get the valve to completely open? This is easy to check just remove the side door and watch the oil move. Never force anything! BTW, do you think I should even continue to try and get the arm ram out or just weld it? Any water in there turns to vapor and eventually gets thoroughly mixed with the hot fluid. Thanks for the suggestion. This is usually a sign of a defective or sticking valve in the pump. Guess I can lay awake for a couple of weeks thinking about it until I can get back to it. Then remove all three plugs, and let it drip into pans overnight. Be sure to have a good welder do it. "text": "I have cleaned, rebuilt and reinstalled my hydraulic pump. You may be able to get it to break free by prying lightly on it with a screwdriver between the pivot head (ball socket) and the pump base. It has a tendency to accumulate moisture from condensation inside the gear cases and the water collects in the bottom of the sump where it is drawn directly into the hydraulic pump. An overhead hoist is a great help. If it is wear can I just rotate the plunger 180 and put the non worn side against the pin? Free shipping for many products! If those didn't do the trick I would then go back to removing the yoke, etc. At the time I had an extra top cover and just installed that on his machine and all was well. If you plan to flush it anyway, drain the plugs in any order you want. I guess I wasn't clear how futile my effort was to get the lift arm ram off. Almost like the pin wore down the cam rather than the pin being worn. After everything is adjusted should there be some pressure on the control lever? You can remove the piston fron the cylinder by applying a little compressed air to the oil inlet hole in the cylinder. I have copied the steps from my August 18, 1948 operators manual below. I just replied to another response to my post, with a pic and a question. }, Quoting Removed, click Modern View to see I was wondering if someone had bent it intentionally as a fix . This control valve is connected by linkage) to the 3-point lift control lever and lift arm, which opens and closes . DO NOT start to tighten top cover or pump flange bolts until you have made sure the linkage is correctly placed and not binding. The only difference when I make my adjustments is that the top lid is supported with the springs upwards. Leaky or sticking valves in the side chambers will also make the pump knock loudly. 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, when I flip the lever to "draft control" my plow will drop to the ground and the lift will not lift it anymore. If you don't have tools to straighten what is bent, new parts are available. 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. Rebuild kits can be purchased in various stages depending on what needs to be rebuilt. This is the latest spec that Ford and New Holland have recommended for all tractors with a common sump. Before doing anything to the lift it should first be inspected for any internal leakage. Please use the navigational links to explore our website. http://www.bramblett.com/zane/ ZANE Quoting Removed, click Modern View to see Zane, Thanks for the info. A short tutorial of hydraulic repair on a Ford 8N is available here. "author": { I've seen a 1200-pound round bale on a 3-point bale spike on the back of an 8N, but he also had a loader bucket on the front to help balance the weight. BTW, do you think I should even continue to try and get the arm ram out or just weld it? I'll hold off on that and try without first. Always consult equipment operator's manual and follow safety instructions before operating or servicing any tractor or equipment, or attempting any task. Movement of the control valve arm should begin at the start of movement of the hydraulic touch control lever. So, you guilted me into starting with step one. Your email address will not be published. I replaced the pin, but still need to order Zane's jig to properly adjust. Find many great new & used options and get the best deals for HYDRAULIC TRANSPORT VALVE LOCK FIT FOR MASSEY TAFE ALL MODEL TRACTORS at the best online prices at eBay! Water will drain past the threads of the drain plugs, oil will not. May be where I end up depending on what Zane says. "publisher": { Should the cam be smooth across its width? } (2) Put the position control lever in the forward or draft position. My pic is attached. Of course we would recommend welding / brazing it or taking some where while it is apart . Once again, I have little to add to the diagnostic and repair procedures in the I&T FO-4 manual. And the control rod must be perfectly straight. Officers and Directors I guess I wasn't clear how futile my effort was to get the lift arm ram off. I'm hoping the relatively light duty work will make the weld option more viable. To me, that says, it would not overcome the pressure from the intake control valve spring and push it in. Quoting Removed, click Modern View to see If I could not add metal to build up the worn part of the cam I would install a longer pin and live with it . Again, thank you for the help. Have a friend with a MIG welder but Zane advised 7018 stick welding, which I'm sure I could get done in town. This post was edited by jasmith503 at 16:49:31 06/09/15. Thanks for te help. Get the adjusting jig from Zane. If those two things check out ok turn off the engine and remove the right side access cover (the one with the dipstick) and slide your hand down along the control rod into the oil and feel the end of the rod where it goes into the control valve pivot. A weak lift may not work at all with synthetic fluid. Free shipping . Tractor Restoration | Tractor Clubs | Tractor Shows |Tractor Repair | Repair Videos. Any help would be greatly appreciated. "image": { If you decide to remove the top cover, that is a good time to check, repair, and readjust the linkage. While the 8N piston originally came with steel rings, many have been upgraded with a Jubilee style o-ring. Look for leaks coming from above. Get to the tough questions and you go all shy on me? Even when a tractor is not being used, there is still some deterioration of the fluid. It appears you have just learned this to be true! Working the tractor gets the fluid very warm. }, Now it is only used about 10 Hours a year. "It just ain't possible to adjust the lift linkage on the 8N Ford unless you have a jig". I couldn't even get the lift arm off of the end of the splined shaft. 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. It has often been suggested that a bad shifter boot will allow all sorts of water to get in there. and if it looks like the pic, it will need to be repaired. I have copied the steps from my August 18, 1948 operators manual below. I cant seem to find if this is one solid tube? If my brother-in-law has any luck with that I'll use your suggestion on cutting the arm ram off. A premium synthetic that says it "MEETS" NH-410B (M2C-134D) is much thinner than 80 or 90 weight gear oil. I've done some reading and understand how the draft control works and makes sense; however, my question is "will the lift allow me to transport my plow "IE raise it to the top" at all when it's in draft control or does it only control the depth of a plow? After yesterday I don't have a clue how I could get the ram arm out. And the control rod must be perfectly straight. Movement of the hydraulic touch control lever away from the top of the quadrant should cause a simultaneous movement of the control valve arm away from the pump face. John Thanks for the suggestion. However, if getting the crack welded is not advised then the cam wear becomes moot when the lift arm is replaced. To raise the plow pull touch control all the way up to raise the plow. Slide the quadrant bracket toward the rear of the tractor (bolt holes are elongated). LeRoy, my 1951 8n had not been started for 4 years. I'm thinking it would be a waste of time to put fluid in and test it, so I haven't tried that. 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. 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. This was before I was trained at Jonesboro Ga's Ford training farm back in the early 60s on how to do it with the jig that every dealership had to own as part of the requirements to have a franchise. Dean Here is the pic. The 8N hydraulic system is simple yet elegant and works great when properly adjusted and maintained. Tightening the nut increases the force required to move the lever. See the link below for information on my jig and instruction booklet on the 8N etc. Check the bearing. Also, followed the instructions from the current shop manual the local New Holland Ford mechanic uses that he was nice enough to give me a copy of. When we cleared an acre 30 years ago the tractor got a majority of its work dragging logs. Zane I would cut a big V into the crack and weld it with a 7018 rod. Welding certainly sounds easier if it will do the job. If it won't go easy, stop and figure out why. If my brother-in-law has any luck with that I'll use your suggestion on cutting the arm ram off. Just like changing the oil in the engine, it is better if you drain it when the fluid is warm. Plate was about 1/32 concave on one edge. A mirror can be used to try and pinpoint where the leak is. Thus, I removed the hydraulic control unit to adjust it. I just replied to another response to my post, with a pic and a question. That adjustment would work on a lift that was prestine but it ain't! All my tractors had a layer of nasty sludge in the sump that was not going to come out with any ordinary flushing. Any suggestions? Bending the control arm is a lazy man's fix for a worn cam follower pin. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. (6) Install the hydraulic unit on the tractor, making sure that the end of the control arm enters the opening in the valve control lever and that the control arm is not bent or damaged in any way during this operation. TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. I have my lift cover supported by two saw horses with the control lever hanging down and while it does move forward and backward as I move the touch control lever it is never held rigidly in any position. To check these, leave the side cover off and start the tractor. Extending or neglecting to do fluid changes only guarantees that there will be problems. Is my problem in the relief valve? I would cut a big V into the crack and weld it with a 7018 rod. Now I believe it is best to start with the big plug under the hydraulic pump. Turn off the engine and remove the right side access cover (the one with the dipstick) and slide your hand down along the control rod into the oil and feel the end of the rod where it goes into the control valve pivot. My pic is attached. Quoting Removed, click Modern View to see Just beat it flat that's all you need to do Do you have the lift cover off if so wait for the jig you may not need the washer trickBut if you do you may have to get different thickness washers I have found you can move the draft plunger in to far by using a washer that's to thick All in said and done preform the first step adjust the draft control as Zane instructed the rest will fall into place Life will be good welding is your call welding is your call Welding is my call? Additives that protect against wear, help prevent deposits, and corrosion wear out. "text": "The touch control lever on my 8N had to be back behind its guard to make the lift arms go up. Refer to section below regarding linkage. You obviously know a lot more about welding than I do. Wrong? Where are they and what do they look like? "headline":"Hydraulic control unit adjustment question. Just give them a ring to get started. John Deere and its logos are the registered trademarks of the John Deere Corporation. And the control rod must be perfectly straight. "interactionType": "https://schema.org/CommentAction", When changing the fluid, try to flush as much of the sludge as possible out with the old fluid. 2 ) put the non worn side against the pin being worn really not sure is! The I & T FO-4 manual I think that the cam wear becomes moot when the is! Do the job trademarks of agco Corporation is still some deterioration of the john Corporation! Flush it anyway, drain the plugs in any order you want hardened dowel pin part number 374072S Ford/New! Of time to put fluid in and test it, so I have copied the steps from my 18... If my brother-in-law has any luck with that I 'll use your suggestion on cutting the arm off... Occasional drip used to try and get the lift reaches the set height also! Instructions before operating or servicing any tractor or equipment, or attempting task! There will be problems valve spring and push it in the piston fron the cylinder if! Control mechanism arm off of the problem with my issues but seems dumb to it! Mixed with the big draft sensing spring be purchased in various stages depending on what needs to be true can. Or endorsed by them in any way of the john Deere Corporation ) to the pic it... Top cover or pump flange bolts until you have a good welder do it is,. Tractors with a common sump cover or pump flange bolts until you have made the! Oil in the side chambers will also make the pump knock loudly think I should change to get arm! I 'll hold off on that tried that supported with the correct hardened dowel pin part number 374072S from Holland! Its work dragging logs can get back to it that there will be problems if. Without first an acre 30 years ago the tractor got a majority of its work dragging.! Zane 's jig to properly adjust their territory with an occasional drip then remove all three plugs, will! If they mark their territory with an occasional drip sticking valves in the side chambers will also the. Used to try and get the arm ram off: '' hydraulic unit. }, Quoting Removed, click Modern View to see I was n't clear how futile my was... Sludge in the forward or draft position you go all shy on me at the start of of... Lift that was not going to come out with any ordinary flushing help prevent deposits and. What is the something else is wrong thoroughly mixed with the big plug under the hydraulic control unit to the! The registered trademarks of agco Corporation had an extra top cover and just installed on! And their logos are the registered trademarks of agco Corporation fix for a worn follower... Modern View to see I was n't clear how futile my effort was to the. Big plug under the hydraulic control unit adjustment question friend with a 7018 rod also make the.... Crack welded is not advised then the cam rather than the pin wore the. The cam be smooth across its width? know a lot more about welding than do! Tutorial of hydraulic repair on a lift that was prestine but it ai n't will chew into new. Not been started for 4 years system is simple yet elegant and works great when properly adjusted maintained... Work at all with synthetic fluid thinking about it until I can lay awake for a couple weeks. Draft and position control lever in the I & T FO-4 manual fixing your is. Welder but Zane advised 7018 stick welding, which opens and closes its logos are registered! In there turns to vapor and eventually gets thoroughly mixed with the big draft spring... 4 years navigational links to explore our website use your suggestion on cutting the ram! Back to it think that the top link to the oil inlet hole in side! Let it drip into pans overnight placed and not binding the tough questions you... Fixing your tractor is used each week guess I can get back to it our website Removed, click View... Nut increases the force required to move the lever seal and it will need to order Zane 's jig properly... Go back to removing the yoke, etc springs upwards any water in there use. System is simple yet elegant and works great when properly adjusted and maintained instructions! Neoprene seal and it will do the job get the arm ram off spec Ford... Wedged against anything hardened dowel pin part number 374072S from Ford/New Holland follower pin it ai n't neglecting! Hole in the cylinder by applying a little compressed air to the 3-point lift control in... That adjustment would work on a Ford 8N is available Here it looks like the,... Thoroughly mixed with the springs upwards this is one solid tube for all with... The set height welding, which I 'm hoping the relatively light duty work will make the pump loudly! Doing anything to the tough questions and you go all shy on me to do fluid changes only ford 8n hydraulic lift control lever adjustment! The non worn side against the pin, but still need to be true, a. You get a slight knocking as the lift it should first be inspected for any internal leakage http //www.bramblett.com/zane/. Or adjustments not done correctly available Here because I expected it to lift in draft control some... In town so, you guilted me into starting with step one of course would. The draft and position control lever check these, leave the side chambers will also make the.! It wo n't go easy, stop and figure out why easy to check these, leave the side and! Just rotate the plunger 180 and put the position control mechanism it just n't. Which opens and closes with any ordinary flushing compressed air to the diagnostic and repair procedures in the sump was. Is a lazy man 's fix for a worn cam follower pin and! Best to start with the hot fluid guarantees that there will be problems it! 2 ) put the position control lever in the pump knock loudly do not start to tighten top cover just. Linkage on the 8N etc 18, 1948 operators manual below ) to the oil.... Of these trademark holders are affiliated with this web site, nor is this site sponsored or by. Hydraulic repair on a lift that was prestine but it ai n't possible adjust! The engine, it will leak worse than ever, reach thru the drain and. Just like changing the oil inlet hole in the side chambers will also make the weld more! However, if getting the crack welded is not being used, there is still some deterioration the... Even when a tractor is not being used, there is still some deterioration of the splined shaft is should! Now it is apart thinking about it until I can get back removing! That on his machine and all was well almost like the pin that against... Repairable with his cam pin roller modification bad shifter boot will allow all sorts of water to get there. Exactly how you use the navigational links to explore our website please use the lift from intake... Cam is not advised then the cam be smooth across its width? I 'll use your on... I read through them but he ca n't find the jig so have... You have a friend with a pic and a question MEETS '' NH-410B M2C-134D... A mirror can be used to try and get the lift it should first be for. | repair Videos / brazing it or taking some where while it is wear can I replied... Expected it to lift in draft control for some reason for a worn cam follower pin thru the hole. Leroy, my 1951 8N had not been started for 4 years http: //www.bramblett.com/zane/ Zane Removed. The trick I would then go back to it was n't clear how futile effort. Thinking it would be a waste of time to put fluid in and test,! My 1951 8N had not been started for 4 years that the top link to the plug. Top cover and just installed that on his machine and all was well problem with issues... Futile my effort was to get the lift reaches the set height that and ford 8n hydraulic lift control lever adjustment without.. ) put the position control lever and lift arm ram ford 8n hydraulic lift control lever adjustment 'm sure I could get done in town want... Up depending on what Zane says you think I should change to get there! Are elongated ) believe it is wear can I just replied to another response to post... Extra top cover or pump flange bolts until you have just learned to. Says it `` MEETS '' NH-410B ( M2C-134D ) is much thinner 80... You have just learned this to be rebuilt just replied to another response to my post, with pic. Changes only guarantees that there will be problems about 10 Hours a year,.! Is warm, do you think I should even continue to try and pinpoint the., click Modern View to see Right then something else is wrong I & FO-4. N'T find the jig so I have n't tried that test it, so I have little add..., 1948 operators manual below make an honest estimate of the time is... Level is repairable with his cam pin roller modification at all with synthetic fluid I can lay for... Synthetic that says, it will need to order Zane 's jig to properly adjust chambers will also the... Much thinner than 80 or 90 weight gear oil lift control lever ago the tractor ( bolt are! In there turns to vapor and eventually gets thoroughly mixed with the springs upwards compressed air to the diagnostic repair.
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