"image": { }, If we can ship it cheaper, we will refund the excess. "height": 57 With the bottom plug out I can pull the handle and the valve moves up and down within the housing. Looks like the square adjusting nut on your spool is threaded on quite a ways and threading it down tighter probably won't make a difference. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. "url": "https://www.yesterdaystractors.com/graphics/smllogo.png", It has the thicker spacer washer as compared to my 686. Since it was late anyway, I quit and headed for the barn. If you were having slippage the disc's are most likely toast already. Red Power Magazine You will need to adapt a 400 PSI gauge to this port. Did you check and set the pto pump pressure with a gauge? Using a radiator hose clamp and a thin piece of plastic or cardboard, (to protect the new seal from the screw part of the hose clamp) slowly draw the clamp tight around the seal ring, making sure it is fitting into the ring groove on the drum. "height": 57 will be pointed straight up. Remove the tool. removed, it cannot be disassembled while it's in the tractor. 270 psi WAS never normal . The original spec on those pto's was 195 lbs. Posted: Fri Sep 05, 2014 6:32 am Post subject: 656 PTO pressure adjustment? Got everything cleaned and resealed. If no fluid could get through, the pump has been starved. It will however run a 7' sickle bar mower. piston. 656 664 666 68626563616 - Gas Engine (Eff. Remove the gauge and install the plug. Farmall 656 Power: Gasoline PTO (claimed) 63.8 hp 47.6 kW: Diesel PTO (claimed) 61.5 hp 45.9 kW: Plows: 4-5 Drawbar (tested) 53.23 hp 39.7 kW: PTO (tested) . By use of the 2 bolts replaced and are included in the seal and gasket sets I use and Thanks for the reply! Please use the navigational links to explore our website. d. k. [Log in to Reply] Dick 06-27-2000 19:58:58. I do not see a "nut" or is that within the housing? "@id":"https://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd=farmall&th=78505", Apparently its supposed to be about 230PSI. I changed a lot of them on the larger tractors but never worried about the 656 that did not have it . I always put an allen screw to lock threads. "publisher": { }, ", As far as the nut. Thanks everyone!! Thread in 2 1/4" X 4"+or- bolts into the threaded holes in the top of the clutch piston. 656 PTO pressure adjustment? Includes 1-Year Warranty. "url": "https://www.yesterdaystractors.com/graphics/smllogo.png", None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. Try to follow the hydraulic lines and see if you can find anything. Rigged up a gauge and only got about 130PSI. If it does not seem like it's the dowel pins, it could be that the greased thrust washer fell off and you are crushing the index tab. Some blocks will have a jam nut securing them and others may have a set screw through the block. Remove the jam nut if there is one, and any spacers. ", ( I offer REMAN housings )Inspect the three brake pistons. Coupler is in place and everything seems to be fine. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. Details. When I first replaced that pin it was a fairy loose fit, even with a new pin. When they went to a lock nut and higher pressure pto they changed the spool valve, large nut with seal in and went to a thin spacer. 1.3k Gender:Male Location:New Ulm, MN Interests:International 504 utility, 656,686,966,5288,5488MFD,1440 combine, Alliswd45 (2). Be careful This topic is now archived and is closed to further replies. }. 656 PTO Problem - Technical IH Talk - Red Power Magazine Community Dug into the PTO on my 656 which has never worked since i purchased it. All Rights Reserved. Set it aside, usually no further disassembly is necessary for the pump. "@id":"https://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd=farmall&th=965665", Replace the lip seal on the outer diameter of the clutch piston and replace the o-ring on the inside. pins that may hang up the separation process. If the tube is loose with the clamp tight; weld or braze the tube to the clamp making certain the tube is positioned down. Mudcat, Thank you for the info.. Will try the adjustment. Rear end pretty clean otherwise. 240 PSI for 706 - 986 (tractors without Turbo). It should turn but with some drag of the clutch discs. The pump '65 Ford 2000 3 cyl., 4 spd. Since it was late anyway, I quit and headed for the barn. Inspect the JUDAS pin that hols the top and bottom of the valve together to make sure it is present and not broken. Stop the engine. If you were having slippage the disc's are most likely toast already. "text": "Went out to brush hog a little the other night and it seemed as though the PTO was slipping on my 656. Is this our so called Judas pin as I've heard it called here before? "mainEntityOfPage": { Use of this Web site constitutes acceptance of our. If new shafts are installed, the bearings will need to be transferred to the new shafts. $500.00. lookd like to me the blue seal ring is cut. I was hoping the small pin had broke but unfortunately this was not the case. Serial number plate on the right side of the Farmall 656 clutch housing. 203593. "datePublished": "2000-06-26", Factory was 185 if you were lucky. as handles, pull up with a twisting action to remove the piston. What I have done in past on the ones with no jam nut, (blue arrow) I have tapped the block on top of spool shaft and put a small allen set screw to use as a lock to keep spool from unscrewing and lowering PTO pressure. }. The full engagement, however is only 135. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. You can send me an. The large snap ring holding the clutch PACK can now be removed along with the clutch PACK. disengage the drive shaft, but take care to not damage the oil Just do not damage the outer brass washer next to the 540 seal. against the snap ring Farmall 656 Power: Gasoline PTO (claimed) 63.8 hp 47.6 kW: Diesel PTO (claimed) 61.5 hp 45.9 kW: Plows: 4-5 Drawbar (tested) 53.23 hp 39.7 kW: PTO (tested) . The control valve spool is serviced by removing the adjusting nut/block from the spool. I have overhauled many ptos where the pin had been broken and I have never found the pin in the pto unit. The hydraulic system and the power steering work fine. While round baling with our 656 the pto stopped and would not run the bailer with hay in it. Any "width": 200, Lay a new gasket on the up-side of the rear cover. and only supplies pressure to the PTO unit). One reason is the new nut with seal does not support the spool as well as old style did as seal was way down inside. Sign up and get monthly updates on new parts and help fixing IH tractors. Note: None of this information is not meant to replace the use of a service manual. Jim, the pto was not completely rebuilt just the new clutches installed. If you feel some resistance it may be the dowel pins. The heavy duty version starts with two steel plates, then one fiber, then one steel, fiber, steel etc., and ends with one steel. Mechanical Product Overview 11" Clutch kit for IH 656, 666, and 686 tractors. I changed a lot of them on the larger tractors but never worried about the 656 that did not have it . "@type": "WebPage", Joined Jan 20, 2009 Messages 3,958 Location Carroll, Ohio Tractor IH Farmall 656 gas/ IH 240 Utility/ 2, Super C Farmalls/ 2, Farmall A's/ Farmall BN/McCormick-Deering OS-6/McCormick-Deering O-4/ '36 Farmall F-12/ 480 Case hoe. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Does it have a lock nut(newer style spool,higher pressure) on the adjustment and a washer about 1/8th inch thick or does it have a thicker spacer and no lock nut. The trans filter and other hydraulic functions do not affect the PTO operation at all the pto is its own self contained unit a pressure check is a great first step in no pressure is found and after any adjustments made then its time its pulled sounds like a pump failure or broken parts good luck. Original price: $11,875. NOT going to complain about it being not used very much but needing repair!!! '56 IH 350 Utility Gas, '47 Farmall H Gas, '08 Bobcat Toolcat 5600 Turbo Pineray Dairy (RIP) -- 1880-2015 5 generations and 135 years of quality milk production Can anyone recommend a good repair manual? With the mower off the ground, tractor ~1200rpm, engage the PTO---there is a horrible racket that sounds like gear teeth sheering, things flying apart, etc for about 2 seconds until the mower blades get spinning. Any information is appreciated !!! the remaining two bolts holding the rear cover to the 4) 3/8" bolts that attach the pump housing to the unit. that you made, or the tool that we sell. Thanks!!! You set the pressure by screwing in or out the linkage on the top of the pto where the engange lever fits up. In the past, I used to replace that rod but they have gotten quite expensive so I just crush it a little on the sides so the pin fits tighter. If they look good (no sign of wear, nicks, or cuts) I leave the old ones in A core charge is a fee that is added to the price of some parts. Be sure to put a gauge on it after rebuild to check hydraulic engage pressure, think mechanic told us 65psi when we did our 686, not sure anymore though. anyways, its all back together along with a new piece of linkage(triangle piece and shoulder bolt). housing. input shaft of the PTO unit. Inspect the inside bore of the valve body where the 2 teflon seals ride. Model Years 1966 1967 1968 1969 1970 1971 1972 1973 1965 1966 This offer applies only to orders placed online that are shipped to the continental US. "text": "While round baling with our 656 the pto stopped and would not run the bailer with hay in it. Your pickup tube could have fallen off or the screen plugged. Can this have that great of an effect on hydraulic pressure to where the PTO would not want to engage? To service the control valve Remove the Hex plug on the bottom of the valve body directly below the valve spool. Thank you that is the information I needed. Pete is correct, if the adjusting nut is not self locking the pressure is 185, if its been updated itll have a self locking adjusting but and the spec is then the higher pressure. If you choose to return the cores both disc and pressure plate must be returned for the full refund. The power is transferred Or possibly an adjustment. Found just by raising the stem a hair more with a screwdriver it went to 180PSI. The PTO clutch is starting to slip on the gas IH 656. This tool is needed to compress the big clutch piston return spring and also to compress the brake piston return springs. How is this changed or is their an adjustment? To continue disassembly, the large spring in the center of the clutch carrier needs to be So whatever is wrong will require removal to repair. When you engage the PTO absolutely nothing happens.no sound no trying to start. } Jun 3, 2011 There may be a bypass valve plumbed into the system that you have to flip. A lot of the time the seal on the piston will get hard and leak. } International 656 Diesel tractor ihc wide front ,3 point with center link need tlc, one rear tire like new, has blow by and a couple oil leaks Located by Stuart Ne. Pop the top link cover off first. d. k. Mudcat, Thank you for the info.. Will try the adjustment. This snap ring may not have been used on your unit, and is only for stopping the piston from over-stroking due to very worn clutch discs. "description":"Discussion of 656 PTO pressure adjustment? Farmall (a part of International Harvester), International Harvester 4.6L 6-cyl diesel, International Harvester 4.3L 6-cyl gasoline, International Harvester 4.3L 6-cyl LP gas. removing this spring, it should expand to aproximately 5" in length if it in the Farmall & IHC Tractors forum followed by comments. Got everything cleaned and resealed. 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. place. If you have a good hill to park it on can pull without draining oil. Thanks! Then can have it rebuilt. Powered by Invision Community. . 11" Clutch kit for IH 656, 666, and 686 tractors. When they went to a lock nut and higher pressure pto they changed the spool valve, large nut with seal in and went to a thin spacer. "publisher": { back while unit is still in the tractor). When the pump housing is completely down and through ALL the clutch discs, line up the bolt holes and make sure the idler shaft flat surface is alignedwith the pump housing. Tie Rod Assembly fits International 706 966 1466 544 786 1066 1586 656 826 Hydro 100 856 1256 Hydro 186 . 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. John Deere and its logos are the registered trademarks of the John Deere Corporation. Usually the bearings do not need to be replaced. As far as the pro, not a and job, make sure the pressure is adj. Then once the PTO is fully engaged, everything works fine overloading the mower will kill the engine before the PTO slips. (There is a slip clutch and it does work if you hit something solid). Of course you will have to fix the linkage so that you can get full travel. Torque amplifier was an option. seal on the piston for wear, nicks, or heat damage. This is a New PTO clutch tool for IH tractors 656 through 6788 with a single speed or dual speed PTO unit. I got 200PSI exactly. Removal requires draining the transmission/rear housing This information pertains to the PTO unit of IH tractor models 706-1486. "height": 57 Make sure that the upside down cup/spacer is installed cup down and that it cannot slide past the ledge on the spool. Jam it with the jam nut or set screw. Video step by step guide for proper mechanical Power Take-off (PTO) adjustments. Install the tube, making sure it is pushed into the housing all the way. There are two dowel "@type": "WebPage", questions or comments? Ive never checked or adjusted the PTO pressure before, so thought it was a good time to do so. By I enjoy reading and learning what others have experienced. Going to try and check pressures if I can get a set-up made with a gauge. . Trans Dug into the PTO on my 656 which has never worked since i purchased it. "interactionStatistic": { I then disconnected the linkage and manually lifted the valve up, and got 210. The constant running shaft powers a hydraulic pump driven by the The lip seal has to jump over sharp lip in the drum; if it is real sharp you may need to sand the sharpness off of the lip with emery cloth. You will need to tighten the clamp as tight as the clamp will allow. Havent pulled it but reached my hand down and there was at least a good 1/4 of goop all over the pickup screen and tube. Before I pulled the PTO, I sure would take off the top link cover and make sure the PTO drive shaft is spinning.like mentioned above might even be missing. With the snap ring removed, the clutch "width": 200, As far as the nut. You set the pressure by screwing in or out the linkage on the top of the pto where the engange lever fits up. Size: 11" Hub Size: 1-11/16" Spline Count: 16 By use of the 2 bolts as handles, pull up with a twisting action to remove the piston. Did you totaly rebuild the PTO or just put in the clutches. 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.
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