Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. My guess would be that the lower spool has got a little extra clearance. Mine was worn and wouldnt allow the spool valve to come up all the way. Remove the large plug (if unit was mounted in the tractor) the valve spool. The control valve spool is serviced by removing the adjusting nut/block from the spool.
8302271 | IPTO Shafts/Components | PTO Components | Hy-Capacity }. Got everything cleaned and resealed. be warmed up in hot water, stretched, installed, and re-compressed). I dont think it was cut. Replace the lip seal on the outer diameter of the clutch piston and replace the o-ring on the inside. First off, it seems as though the pto clutch linings must be shot as the pto does a lot of slipping. Went to check pressure on it, the initial engagement is 45 psi, which is good. At this point the two halves should be bolted together and the shafts should turn freely and the three brake piston pads should be facing up.
"width": 200, Ive never checked or adjusted the PTO pressure before, so thought it was a good time to do so. If the tube is loose with the clamp tight; weld or braze the tube to the clamp making certain the tube is positioned down. The hydraulic pump supplies oil pressure to a control valve inside
pressure from the pump to a hydraulic piston that when pressurized, engages a clutch pack which drives the output shaft. $500.00. I found that the small pin in the control valve(that I had just replaced) was missing. Install the seals. Thread in 2 1/4" X 4"+or- bolts into the
Some blocks will have a jam nut securing them and others may have a set screw through the block. "@id":"https://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd=farmall&th=965665", "text": "Went out to brush hog a little the other night and it seemed as though the PTO was slipping on my 656. Push the spool top (threaded end) in or down until the bottom of the spool can be pulled out through the plug hole. 9230, 666, JD 7410, FNH 9030, maintenance that causes these issues with pumps , pto's or anything to do with hydraulic problems.
11" Clutch Kit, IH 656 664 666 686 - Redrunrite "name": "Timwafer" I'm curious of how you determined the pin is alright. 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. "interactionStatistic": { 11" Clutch kit for IH 656, 666, and 686 tractors. The hydraulic system and the power steering work fine. NOTE: If the unit suddenly stops or will not start after it was shut off and had been working perfectly, it could be that this pin broke. }, Original price: $11,875. Any
"headline":"International 656 PTO", "height": 57 The pin is ok. in the Farmall & IHC Tractors forum followed by comments. I have overhauled many ptos where the pin had been broken and I have never found the pin in the pto unit. There are two dowel
Those tractors are not putting out all that much horsepower. The PTO has its own pump. ", "logo": { Size:11"Hub Size:1-11/16"Spline Count:16PPA Levers:3PPA Springs:9 Coil SpringsFlywheel Disc Spec:4 Pad; 1-3/32" 10 Spline Hub; Spring CenterFlywheel Step:1.437".
"@id": "https://www.yesterdaystractors.com/" pins that may hang up the separation process. Flywheel Disc Spec:4 Pad; 1-3/32" 10 Spline Hub; Spring Center, 3616 - Gas Engine (Eff. I have never had a failure ofthe pin when Ive done it this way. The constant running shaft powers a hydraulic pump driven by the
Use a new gasket or small o-ring (which ever style your unit has) in the pump housing groove for the gasket style or o-ring in the pump housing, and work the pump assembly down through the clutch discs with a turning and jiggling action. 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. A lot of the time the seal on the piston will get hard and leak. "author": { Got out the manual and read how to adjust it but noticed on mine there is a nut (like a locknut) underneath the T shaped nut that the linkage hooks to. Powered by Invision Community, Super M , hydro 84 , 560 , 656 , 1086 , 1460 combine JD 9220, 8410, 4440, 6330, 6145R 7720 & 9650 ,9570 combines. Grease the inside of the drum (especially at the lip surface) and the 1000 RPM shaft. Be careful
Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. A ne w spool with heavier spring and lock nut could be used but far exceeds the power available on a 656 and just causes more problems. Went out to brush hog a little the other night and it seemed as though the PTO was slipping on my 656. With unit installed in tractor with valve spool (up) engaged and engine running at PTO RPMs, adjust pressure to: Adjust the pressure by turning the valve stem with allen wrench in the hole through the spool. The clutch carrier drum can now be installed. By Rear end pretty clean otherwise. { Farm Loaders published in 1965, by International Harvester, Spring 1968 Buyer's Guide published by International Harvester, Summer-Fall 1968 Buyer's Guide published by International Harvester, Spring 1969 Buyer's Guide published by International Harvester, Spring 1970 Buyer's Guide published by International Harvester, Spring 1971 Buyer's Guide published by International Harvester, McCormick Farmall 656 Tractor published by International Harvester, Farm Equipment Reference Catalog published in 1965, by International Harvester. Tim If you can get 185 that is all a 656 needs. the outer lip seal and inner o-ring
The 540 shaft seal installs from inside with brass washer first facing rear or outside of unit. Remove the pump suction tube and clean the screen. "@type": "ImageObject", seal rings on the drum can be replaced at this time. Refundable Core Charge. Lighting; . Inspect the outer lip seal and inner o-ring seal on the piston for wear, nicks, or heat damage. The only service the valve spool needs is to check the Judas pin (because it will betray you) that holds the two halves of the spool together. John Deere and its logos are the registered trademarks of the John Deere Corporation. Mechanical Remanufactured PTO Assembly - Dual Speed fits International 966 1486 826 1456 806 1256 756 856 1466 986 3388 Hydro 100 1066 Hydro 186 706 1086 886 . the 4) 3/8" bolts that attach the pump housing to the unit. I'm hoping maybe the coupler might be gone or maybe the pick-up tube has fallen off. For the best experience on our site, be sure to turn on Javascript in your browser. Total built: 9,367. Those spool assemblies have gotten crazy expensive so I would just go with the 210 lbs. It has the thicker spacer washer as compared to my 686. "dateModified": "2014-09-05", Apparently its supposed to be about 230PSI. Now I have to take it all apart to find the pin(assuming its in a passage somewhere). Its not in the mower, its in the PTO on the tractor. "image": { "@context":"https://schema.org", ", Then once the PTO is fully engaged, everything works fine overloading the mower will kill the engine before the PTO slips. "@type": "Organization", Have you pulled your top link cover to investigate? Thanks! Details. Purchased this from the original owner and according to him he never remembered using the pto so this has me a little worried. Slowly draw the bolts in, alternating between them to keep things even. i doubt that you will find that pin.
International Harvester 656 - Tractor-Specs.net Removing the 3 point hitch upper link bracket/cover allows access
Using 2 of the long bolts that held the unit in the tractor, screw them
"publisher": { "name": "Yesterday's Tractor Co.", ", The two Teflon
"@type": "ImageObject", and only supplies pressure to the PTO unit). Serial number plate on the right side of the Farmall 656 clutch housing. with a soft faced hammer. Modern View Forum powered by phpBB 2001, 2005 phpBB Group. I've heard it is a fairly easy thing to fix. Rigged up a gauge and only got about 130PSI. removing this spring, it should expand to aproximately 5" in length if it
Please use the navigational links to explore our website. If the Teflon seal rings need to be replaced, here is the procedure: Cut or pry the old ones off of the drum. The complete unit needs to be
Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. The nut at the top of the unit can be unscrewed and a new seal pressed into the nut. I was hoping the small pin had broke but unfortunately this was not the case.
International 656 PTO - Yesterday's Tractors Thanks. Push the spool top (threaded end) in or down until the bottom of the spool can be pulled out through the plug hole. This topic is now archived and is closed to further replies. Factory was 185 if you were lucky. Looked at the PTO the next day and thought that the lynch pin for the top link of the 3point was mangled a little and maybe it was interfering with the linkage for the PTO. of the three brake piston springs will push the cover away from the unit
Pop the top link cover off first. JavaScript seems to be disabled in your browser. Good luck? None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. Going to go ahead and pull the pump out and see whats going on. Has anyone had this problem or know what can be done to fix it?
frame of the tractor for repair. I am ok with pulling it if I need to but would think it beneficial to make sure the pump is working before I pull it. Your pickup tube could have fallen off or the screen plugged. Now carefully set the valve body down over the 1000 RPM shaft, making sure the brake pistons are entering the inside of the three springs, and also align the 540 shaft and the idler shaft with their respective bores and bearing. anyways, its all back together along with a new piece of linkage(triangle piece and shoulder bolt). Thank you that is the information I needed. . I changed a lot of them on the larger tractors but never worried about the 656 that did not have it . This information pertains to the PTO unit of IH tractor models 706-1486. Mudcat, Thank you for the info.. Will try the adjustment. 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. Coupler is in place and everything seems to be fine. 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. Inspect the inside bore of the valve body where the 2 teflon seals ride. Did a complete engine overhaul this fall now this happened. I got the PTO all back together. Any information is appreciated !!! Thanks Did you check and set the pto pump pressure with a gauge? 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.
NOTE: If the adjusting nut was loose on the valve spool you will need to set the working pressure. The early models didn't have the lock nut. "publisher": { Install the clutch discs. Powered by Invision Community. Did you check and set the pto pump pressure with a gauge?
Viewing a thread - IH 656 PTO Clutch - AgTalk It will however run a 7' sickle bar mower. Found just by raising the stem a hair more with a screwdriver it went to 180PSI. When this valve is activated, it directs oil
With the 4 3/8" bolts started (but not drawn down) turn the pump input shaft. SHIPPING NOTE: UPS Ground to most parts of the country is $42. seal on the piston for wear, nicks, or heat damage. Or possibly an adjustment.
sump tube which angles down towards the bottom of the rear frame
Overview Engine Transmission Dimensions Photos Attachments 1965 - 1973 Utility tractor Series map: 666 1972-1976 656 756 70.9hp* 84.4hp* 606 1962-1967 *Estimated engine power for comparison only. It will break or sometimes will still be in place but be broken. 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. "height": 57 place. input shaft of the PTO unit. If the unit was working satisfactorily before removal, count the number of turns or threads until the block come off (this will allow you to keep the same pressure setting). 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. Thank you for the info.. Will try the adjustment. 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. Use a tacky grease stick the back side of the second thrust washer for the idler gear to the valve body, centered over the idler shaft bore with the notch indexed. 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. compressed enough to remove the snap ring. They are immersed in oil and any time engine is running oil is being pumped through it. All Rights Reserved. inside the carrier. I read how to adjust the pressure and found it was way too low but adjusted it up where it belongs. its two thrust washers can be removed and set aside. My hitch does drop down when not running. By use of the 2 bolts
Without this tool the entire unit needs to be placed in a press twice for disassembly and twice more for assembly. FREE SMALL PACKAGE SHIPPINGon orders above $249.99. Install the tube, making sure it is pushed into the housing all the way. (Note: this snap ring is not used on some models). The store will not work correctly in the case when cookies are disabled. The spring pressure
656 PTO pressure adjustment? - Farmall & International Harvester (IHC In 1973, the hydrostatic version of the 666 was renamed the 70 Hydro. The standard duty disc has 4 pads, the heavy duty disc has 6 pads. Spraying some diesel in to clean and rigged a can and filled with diesel and got the screen all cleaned. If you were having slippage the disc's are most likely toast already.
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