pirlbeck 63 Posted October 27, 2020 Share Posted October 27, 2020 The lower 3pt extensions are rusted into the arm pretty tightly. I have tried heat and pulling on them with it chained to a steel pipe concreted in the ground and they will not budge. Will electrolysis clean the rust up internally in the sliding parts enough to help them come apart? Thanks! Quote Link to post Share on other sites
nomorejohndeere 421 Posted October 27, 2020 Share Posted October 27, 2020 it will if you do it long enough so will more heat and pulling harder............ Quote Link to post Share on other sites
pirlbeck 63 Posted October 27, 2020 Author Share Posted October 27, 2020 3 minutes ago, nomorejohndeere said: it will if you do it long enough so will more heat and pulling harder............ Yes, but the electrolysis method is a lot less time consuming and not near as dangerous as tugging like heck on it. Quote Link to post Share on other sites
Farmall Doctor 483 Posted October 27, 2020 Share Posted October 27, 2020 lay them flat on a big piece of steel on concrete and beat on the sides of the outer tube with a sledge to break the rust "weld". Then try beating them in farther. Beat the extensions up and down. Blow rust out with compressed air, soak them in a pail of diesel fuel. Rinse and repeat as necessary. 1 Quote Link to post Share on other sites
Gearclash 845 Posted October 27, 2020 Share Posted October 27, 2020 What’s this on? Usually those lower arm extensions are pretty sloppy in the arm, seems like in most cases dirt is the main reason they don’t want to move. I would imagine you have a real manly air hammer, I would try pulling on the arm and hammering at the same time. I like to put a steel slug on the end of a punch tip attachment for such stuff. Doesn’t bugger everything up. Quote Link to post Share on other sites
ksfarmdude 483 Posted October 27, 2020 Share Posted October 27, 2020 Take them off and soak them in a barrel of hydraulic oil then use a hydraulic jack to push them out I've used that method Quote Link to post Share on other sites
Edsfarms 94 Posted October 28, 2020 Share Posted October 28, 2020 I had the same issue, tried a chain to a big dead elm tree trunk all i did was dig ruts in the edge of field, removed one side and hung from the other side still on tractor with 3/4 bolt and nut, remove latch assy on adjuster. Heat till glowing red with rosebud torch. Pound lift arm down with all your might, have friend take over when your are tired of swinging the maul. repeat. Consider wearing safety gear 😉. took about 20 min a side. Once they are out and rust and dirt come out of the socket they will slide out effortlessly. Amazing how strong the rust and dirt bond is. 1 Quote Link to post Share on other sites
TeachersPet1066 549 Posted October 28, 2020 Share Posted October 28, 2020 1256 project had this issue a few months ago. Soaked for a few weeks while on tractor. Heated while other person used winch. A 3rd person to hit sides & underneath to break rust bond loose. Amazing the rust dust you will see when hitting it. Took more time compared to the 1066 but they will come. Quote Link to post Share on other sites
Sparky 243 Posted October 28, 2020 Share Posted October 28, 2020 Not sure what tractor they're on, but if they are on a 706-1586 or comparable tractor, take them off and throw them in a tank of water. It's just years of dirt holding them together. Travis 2 Quote Link to post Share on other sites
Sresites 11 Posted October 28, 2020 Share Posted October 28, 2020 I’ve tried a log chain around a tree, no luck. I put a large breaker bar through both lowers and used a hydraulic jack right next to one side. Should’ve seen bar bend and bend. Used a sledge hammer on the bar with plenty of panther fiss. No luck. Sunday I mounted the plow and went out to a field full of hardpan and unfriendly top something. Traveled about 2 to 3 mph keeping a close eye out for any movement of the links. Nothing. Quote Link to post Share on other sites
Edsfarms 94 Posted October 28, 2020 Share Posted October 28, 2020 1 hour ago, TeachersPet1066 said: 1256 project had this issue a few months ago. Soaked for a few weeks while on tractor. Heated while other person used winch. A 3rd person to hit sides & underneath to break rust bond loose. Amazing the rust dust you will see when hitting it. Took more time compared to the 1066 but they will come. AGREED! I soaked mine with penetrating oil for a couple weeks before as well don't know if it really helped. Agreed on the amount of rust dust and pieces flying when I was hitting mine, I also hit mine on the sides and top and bottom to break the rust bond. when the end finally came out I poured a pile of rust out of the socket. On the 5120 the lock lugs were rusted in as well, had to hammer and chisel them out as well. We used one person to hold additional piece of metal on the lift link edge and pounded on it to save peening over of the lift arm edge. KEEP it glowing red hot and keep hitting it. Quote Link to post Share on other sites
pirlbeck 63 Posted October 28, 2020 Author Share Posted October 28, 2020 These are are off of a 1456. I have been spraying these with penetrating oil off and on for a year. Besides heating one of them and pulling on it pretty hard I have tried my hi dollar Snap On air hammer rattling it every which way, and a sledge hammer to try to move it in and out a little. Other then being stuck, these arms are in pretty nice shape, so I am not real wild about beating the heck out of them. Right or wrong, last night I rigged up a 30 gallon plastic barrel to try the electrolysis thing. This morning I will move it outside and get it started and will see what happens. If this works, I can see using this for other rusted parts that we fight from time to time on customers equipment, like rusted top 3pt links, rusted vertical 3pt adjustment links and lots of other rusty stuff. Thanks for the suggestions, I will let you know how this turns out. Quote Link to post Share on other sites
pirlbeck 63 Posted October 28, 2020 Author Share Posted October 28, 2020 I don't know if this means anything or not, but I sure have a lot of rusty looking crap floating on the top of the water after only running a short hour or so. This is my first time with this so I don't have any idea how long this should take. I wonder what the downside to leaving it in longer then necessary? I have read somethings about hydrogen embrittlement from this process, so that may be a downside of leaving it work longer then necessary. Quote Link to post Share on other sites
Nebraska1206 153 Posted October 28, 2020 Share Posted October 28, 2020 2 hours ago, pirlbeck said: I don't know if this means anything or not, but I sure have a lot of rusty looking crap floating on the top of the water after only running a short hour or so. This is my first time with this so I don't have any idea how long this should take. I wonder what the downside to leaving it in longer then necessary? I have read somethings about hydrogen embrittlement from this process, so that may be a downside of leaving it work longer then necessary. Be sure to take a picture, kinda curious to how well it cleaned them up Quote Link to post Share on other sites
CIHTECH 431 Posted October 28, 2020 Share Posted October 28, 2020 Had a 4BT Cummins in wood chipper that muffler rotted away and head was rusted horrible inside intake manifold as well as exhaust ports. Studied and done the electrolysis to clean it up. I was impressed, almost looked like a new casting. Quote Link to post Share on other sites
pirlbeck 63 Posted October 28, 2020 Author Share Posted October 28, 2020 Here are a couple of pictures from this morning. The top was pretty much clear water when I started, so hopefully the rusty looking stuff is coming from the right spots. Sure will beat fighting these sort of things with heat and large hammers if it works. 1 Quote Link to post Share on other sites
Edsfarms 94 Posted October 28, 2020 Share Posted October 28, 2020 Thanks for sharing the photos, Interesting concept, Will be interested in the idea of electrolysis to removed rusted frozen tight items. Quote Link to post Share on other sites
nomorejohndeere 421 Posted October 28, 2020 Share Posted October 28, 2020 I measure my electrolysis time by the week....... Quote Link to post Share on other sites
pirlbeck 63 Posted October 28, 2020 Author Share Posted October 28, 2020 15 minutes ago, nomorejohndeere said: I measure my electrolysis time by the week....... Meaning????????? Quote Link to post Share on other sites
Sparky 243 Posted October 28, 2020 Share Posted October 28, 2020 13 minutes ago, pirlbeck said: Meaning????????? Meaning he leaves the parts in the electrolysis tub at least a week or more. Travis Quote Link to post Share on other sites
Doc Egor 63 Posted October 28, 2020 Share Posted October 28, 2020 5000 PSI hot water power washer and a needle stream tip has worked for me numerous times. Aim the stream straight into the joint where the extension slides in and drill the dirt and rust out. If you start in one of the corners and drill through to the point that the water starts running out of the dust holes you are on your way. Just use the water stream like a reciprocating saw blade. 2 Quote Link to post Share on other sites
boots 5 Posted October 29, 2020 Share Posted October 29, 2020 Nothing like a torch and a pair of shorts Quote Link to post Share on other sites
Edsfarms 94 Posted October 29, 2020 Share Posted October 29, 2020 2 hours ago, boots said: Nothing like a torch and a pair of shorts It was a spur of the moment project, Friend stopped by and we were looking and talking about the lower arms being stuck, next thing you know....sledge hammers farm jack, bottle jack, chains pry bars and torch is out and the lift arms are loose. My wife snapped the picture, I did not even realize I was in shorts until I posted the pic 🙂 Quote Link to post Share on other sites
England806 34 Posted October 29, 2020 Share Posted October 29, 2020 You could try electrolysis using phosphoric acid as the electrolyte. Or just leaving them to soak in the avid for a few days. It’s pretty good at dissolving rust. Have had good luck with this method. Quote Link to post Share on other sites
England806 34 Posted October 29, 2020 Share Posted October 29, 2020 I normally use about 1/3rd acid 2/3rds water. Add acid to water. Wear eye protection! Also beware of hydrogen gas given off. It’s quite flammable. Quote Link to post Share on other sites
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