"@type": "Organization", I have the flow set to the point where I can run up to 10 gallons of 10-34-0 per acre, but only run 5 to 7. John Deere and its logos are the registered trademarks of the John Deere Corporation. "userInteractionCount": 22 Rate of drop valve closed. "image": { Deere makes three USA designed closed-center pumps. Manufactured by: JOHN DEERE. I took 3rd in the SkillsUSA Utah State competition. We went with ground driven finger pick up units on the last couple Deere planters, feeling the consistency of that system made a better stand, this can be argued in both directions but it's what works good for us Yes those figures are about right for a 3 inch pump, and as Jim stated you can install a 4' pump to up your flow. ... John Deere 4640, quad range, 1000 pto, 3pt and quick hitch, 18.42 rears, matching 10 … Blown fuse. We went with ground driven finger pick up units on the last couple Deere planters, feeling the consistency of that system made a better stand, this can be argued in both directions but it's what works good for us One thing not mentioned is that under continuous hydraulic function use the transmission/charge pump is the limiting factor. Mike. Active Radiator M T Machinery Inc. Cook Equipment. I would think you could get a direct drive PTO pump from someplace such as Surplus Center for a lot less than the price you quoted. The fix for this symptom (because many people have had this issue as a 4640 is a capable machine but posses inefficient gpm to run a modern planter) is to use the pump c or a 4640 or 4840 with hyd FWA. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 1978 to 1982. It just has to have enough flow and a flow regulator of some kind on it. When I talked about this to the representative at Worthington Ag Parts, we discussed the possibility of going to the larger main pump. Where and how is it ported back into the tractor? Also, make sure you have ISO tips instead of Pioneer, there is a difference. I have not seen anyone who has utilized one of these pto driven hydraulic power units nor do I have any feedback, positive or negative, other than what Tim S has mentioned. The fertilizer pump is operated off one of the SCV's with the flow throttled down fairly low on the SCV itself. If you have a way to lift the rear cover and seat off the tractor changing the hydraulic pump is fairly simple. See your John Deere Dealer. Two used per tractor. Internal leakage in control valve or cylinder. Hydraulic Pump Part Number R94660 is an Option, Must Also Order 1-5/8' Inlet Side Plug Part Number … I will add, this 4640 had been used on a 7100 planter for a few years, as well as a 4630 that was replaced by this 4640. Hy-Capacity was founded in 1978 as a remanufacturer of agricultural clutches, water pumps and torque amplifiers ().Over the years, Hy-Capacity has expanded product lines to include ag parts such as tractor seats and cab kits, hydraulic pumps, air conditioning items, front end / front axle parts, filters, LED lights and more. The 4640 was equipped with either the stock 50 cm3 pump rated at 30gpm at redline or the optional 65 cm3 pump rated for 40gpm at redline. TractorJoe offers the best online shopping for tractor parts. Compare Gehl SL 4640 SXT with other models. 431410. I think it could be done, reservoir and all, for $1000 or less. But the fact is a pre-1996 tractors have trouble meeting the demands of some newer equipment. If the flow was measured through an scv, not all the scv's may flow the same amount of oil regardless of where the rabbit/turtle is. The screen was almost stopped up but clean now, still does same thing when hot after it cools down it starts moving again could it be in main pump or trans pump has anybody ran into this problem … Breakaway … John Deere 4640, 4840 Tractors Technical Manual (TM1183) John Deere 60 Skid Steer Loader Technical Manual (TM1185) John Deere 670A and 672A Motor Grader Repair Technical Manual (TM1188) ... John Deere 250GR Hydraulic Excavator (HYEX) Field Maintenance Technical Manual (TM12141) John Deere 315SK Backhoe Loader Diagnostic Operation and Test Technical Manual (TM12471) See your John Deere Dealer. I will add, this 4640 had been used on a 7100 planter for a few years, as well as a 4630 that was replaced by this 4640. See your John Deere Dealer. You cannot just order a new pump. Currently NOT using the hydraulic drive for the population, so nothing has been altered. 2.4, 3, and 4 cubic inches per revolution. Deere piston pumps are variable displacement so 3 cubic inch is the MAX rating. Yes and if you can return oil threw the charge circuit it will help..When I was using a power beyond block for the air pump I was dumping back to sump, but what I needed in my application was a better flow to the air pump.. Here are the figures when the hydraulic system was last checked when the tractor was in for some major repair work 3 years ago. I assume you have the 3 cubic inch. SCV coupler flow checking can be caused by either a failed male hydraulic tip or a defective female coupler. The prior owner of the planter did variable rates with precision farming technologies. There is a wee screen up at the front pump I'll bet the dealership missed. The higher flow ISO fittings and ensure the return oil is being returned to the pump side of the transmission oil filter. "@type": "Person", I spend 50% of my time working on construction equipment too. This one has been a head scratcher trying to isolate problem in load sense circuit on priority 3 block for hitch and remotes . JOHN DEERE 4640 4840 TRACTOR repair manual & service manual is in pdf format so it will work with computers including WIN, MAC etc.You can Easily view, Navigate, print, Zoom in/out as per your requirements. That pump does not seem to take a lot of hydraulic oil flow to operate it. Hoses would add more, obviously. I have a problem on a John Deere 4640 tractor's steering.After struggling for a month now.. John Deere Rate Controller 2000 . John Deere Tractor Parts 4840 - Hydraulics. Second, plumb a gauge into the filter relief valve housing. But the fact is a pre-1996 tractors have trouble meeting the demands of some newer equipment. ... Front Hydraulic Pump Drive Clamp Half - This Coupler Half measures 5.142 inches overall length, 2 inches wide and has 3/8-16 NC threaded hole. This has been the one key disappointment with this tractor versus the 4630 we had. 166032. There is not a place to mount this pto driven unit. The John Deere 4640 is a 2WD/4WD row-crop tractor from the Iron Horses series. JOHN DEERE 4640 Horsepower Condenser with Oil Cooler, Used, … I have looked into one of those pto driven hydraulic power units. 2.4, 3, and 4 cubic inches per revolution. Now if you don't have any pressure at the charge pump pull out the plug on the filter housing a have someone hold a bucket at the hole and start the tractor if nothing comes out check the pickup screen before the pump is condemned. Male tip failures could include internal poppet/ball stop being damaged or has moved out of position. Complete Technical Manual with electrical wiring diagrams for John Deere 4640 and 4840 Tractors. We will perform a total change out of hydraulic fluids and filter(s) before we hit the field in the spring AND pull the screen, too. "@type": "ImageObject", Hy-Capacity was founded in 1978 as a remanufacturer of agricultural clutches, water pumps and torque amplifiers ().Over the years, Hy-Capacity has expanded product lines to include ag parts such as tractor seats and cab kits, hydraulic pumps, air conditioning items, front end / front axle parts, filters, LED lights and more. Radiator replaces AR79456, AR90741. Phone: 1-800-443-0625. If the flow was measured between the pump and junction block, you may be losing flow through the steering, brakes, or rockshaft. If this was a JD planter, attaching it to the hitch frame would seem to be a piece of cake. There is no down side other than the cost as it is a direct bolt on swap but you will notice a pretty large difference in response time. Used on John Deere 4240, 4440, 4640 (Part No: AR96767) $471.38: Radiator - For model 4640. The 4640 was equipped with either the stock 50 cm3 pump rated at 30gpm at redline or the optional 65 cm3 pump rated for 40gpm at redline. Replaces OEM Part Numbers; Allis Chalmers: 70239804 John Deere. Changed filters on every tractor last spring and my recollection on doing that is not the greatest at this point in time. You have to order the specific pieces you need. There are two oil filters and a screen, their condition? Situation or Problem. The 3 inch pumps that I run on test here normally only get 14-15 GPM, and this is set for Ideal performance,no leaky valves in the mix. I would not want to go back to a finger pickup, as good as they were in their day. The tractor has a front end loader and the loader will lift slowly also. } Re: 4640 Main Hydraulic Pump in reply to 2002sliverado, 11-19-2014 05:26:36. I changed the filter and it inproved slightly but is still very slow. Two subscriptions will be available with the 4640 Universal Display + AutoTrac Activation: 4640 Premium 3.0 1-year subscription. The figures I have seen on the hydraulic flow demands for the centrifugal pump to be around 2 or 3 gpm, and each of the two variable rate hydraulic drive motors being 2 to 5 gpm. John Deere 7520: Models Produced 1972 - 1975 We ship anywhere in the Continental United States! Low system-pump oil flow may be as … SECTION 70-HYDRAULIC REPAIR Group OO-Specifications and Special Tools Group 05-Miscellaneous Hydraulic Components Group 10-Hydraulic Pumps Group 15-Rockshaft and … John deere 4020 hydraulic system diagram. Screenshots for John Deere 4640 & 4840 Tractors Technical Manual TM1183 PDF: enlarge Our company provides for sale original spare part catalogs, workshop manuals, diagnostic software for all models of engines, cars, trucks, buses, forklifts, tractors, harvesters, cranes, buldozers, generators, construction and agricultural machines, motorcycles. According to the cost I saw in the Worthington Ag Parts catalog, I seem to recall seeing the standard pump running around $800 and the 4 cubic inch pump running around $1000. When the oil returns from the planter. I am struggling with this issue because I tend to believe the main hydraulic pump is not putting out what it should. 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. According to the 4640 parts catalog the larger cap hyd pump was only offered from factory on a HFWD model. Re: 4640 tractor I am currently a Assistant Shop Foreman at a John Deere Dealership in the Uintah Basin and have been since graduating from Utah Valley University in the Diesel Program. I have a 12 row model 3200 Kinze planter equipped with an orbit motor driven centrifugal pump for liquid starter fertilizer and I have the choice of either using a hydraulic variable rate population drive or the factory ground driven chain drive, which is what I have been using simply because the hydraulic output on the 4640, I feel, has never been all that great. Remove the rear plug on the back of the tranycase case. I have the flow set to the point where I can run up to 10 gallons of 10-34-0 per acre, but only run 5 to 7. John Deere AutoTrac™ and documentation are included in the purchase of the display. That pump does not seem to take a lot of hydraulic oil flow to operate it. 4840 john deere hyd. nice video about hydrostatic front-wheel drive installed on 2130 and 3130 John Deere tractors in 1976 Equipped with multiple rear hydraulic remotes, Has a motor problem....we could not get it to start, starter just clicks... Sells absolute to the highest bidder regardless of price. If I cannot use the hydraulic drive, it is not the end of the world. The screen in the front pump is mainly to screen oil for the stroke valve main oil flow does not go trough this screen, I replace this screen when I re-seal a pump and there is rarely any thing in them, but they get a new one anyway.. # 17 is the screen we are talking about.. Where and what is the connection from the tractor to supply the planter? If the oil viscosity is not correct, the oil and oil filter may need to be replaced. I decided to call in some help. Immediately behind the main hydraulic pump outlet, or through an scv? "text": "I have a 1979 4640 that I use for various tasks which includes planting. There is no down side other than the cost as it is a direct bolt on swap but you will notice a pretty large difference in response time. As TimS stated. When the oil returns from the planter. I have not seen anyone who has utilized one of these pto driven hydraulic power units nor do I have any feedback, positive or negative, other than what Tim S has mentioned. If they missed the filter, no wonder low flow. I have a 1979 or 1980 2140 John Deere tractor that has a hydraulic problem. See your John Deere Dealer. The screen in the front pump is mainly to screen oil for the stroke valve main oil flow does not go trough this screen, I replace this screen when I re-seal a pump and there is rarely any thing in them, but they get a new one anyway.. # 17 is the screen we are talking about.. Hydraulic Pump w/ New Piston Housing - Reman R94658NH. Feel free to call with any further questions. When the oil returns from the planter. … Damaged pump drive. I responded in a prior message, B & D, and I pasted your message in that response so I could address your points and questions directly in the text. There are two oil filters and a screen, their condition? I am not sure exactly where they checked the system, but from what I can figure out, it would seem the readings probably came from one of the SCV's. john deere model: 4640 & 4840 chassis only volume 1 of 3 this is a manual produced by jensales inc. without the authorization of john deere or it's successors. English. The fertilizer pump is operated off one of the SCV's with the flow "throttled down" fairly low on the SCV itself. Pros and cons to this? Reading his comment tends to shy me away from one of those units. As TimS stated. RPM X Pump Displacement / 231 How much oil will be produced by a 3 cubic inch pump operating at 2600 rpm? I have been looking at this from the standpoint that if my main hydraulic pump is weak and needs replacement, I might be able to solve this problem with a larger main pump. Hoses would add more, obviously. If this was a JD planter, attaching it to the hitch frame would seem to be a piece of cake. I looked at this variable rate drive as a step towards some of the precision farming practices and that I could get a comfort level with the variable rate population before taking a step further with precision. Look for oil flying around there , on the bottom of the rockshaft there's a cover that can blow the gasket thus dumping return oil into the sump, causing low oil flow . As you check the oil, make sure that the reservoir air vent cap is plugged. $237.00. "url": "https://www.yesterdaystractors.com/graphics/smllogo.png", Mike Why not add a PTO pump for some of the functions and take the load off your main pump? John Deere 4640, quad range, 1000 pto, 3pt and quick hitch, 18.42 rears, matching 10 bolt duals, front weights, 8400 original 1 owner hrs on northern Illinois grain farm, new cab interior, clean tractor, $21900, call with any questions or , thanks Trucking available I think it could be done, reservoir and all, for $1000 or less. The fix for this symptom (because many people have had this issue as a 4640 is a capable machine but posses inefficient gpm to run a modern planter) is to use the pump c or a 4640 or 4840 with hyd FWA. Howdy Everyone! ... hydraulic drive: 2013 and newer: 8.00: X: X: X: X: Seeding tools with air-run blockage - primary blockage: 2009 and newer (BMU) 12.0: X: X: X: X: … "@context":"http://schema.org", ... 4020 Steering Problem 4640 Tractor Page 2 John Deere 4020 T 33 Turbo Kits M W Rajay Garrett 1970 John Deere 4020 Fwd Powershift S95 Davenport 2017 John Deere 24v To 12v Starter Conversion Kit PTO engaged. "headline":"4640 Main Hydraulic Pump", I checked into the option when I got my vacuum planter. Both pumps are single bank 2000 series units. John Deere 4640, quad range, 1000 pto, 3pt and quick hitch, 18.42 rears, matching 10 bolt duals, front weights, 8400 original 1 owner hrs on northern Illinois grain farm, new cab interior, clean tractor, $21900, call with any questions or , thanks Trucking available Plugs and Spool Valve Included. ... 7200 John Deere tractor hydraulics and very weak we have replace hydraulic pump … They both were used on a prior planter, a 7100 John Deere. Some John Deere 4640 Tractors have a 4x2 2WD chassis, but there are also some with a 4x4 HFWD 4WD*Optional chassis, all equipped with hydrostatic power steering. Sounds like some debris went through the system. If you are experiencing a problem that is not listed in this chart, see your authorized dealer for service. Since this is a 3200 Kinze, the hitch frame is hinged so that each half of the planter can flex in uneven terrain. The fix for this symptom (because many people have had this issue as a 4640 is a capable machine but posses inefficient gpm to run a modern planter) is to use the pump c or a 4640 or 4840 with hyd FWA. John Deere 4640 tractor specification John Deere 4640 tractor specs, dimensions, fuel consumption, transmission, drive, equipment Price at production date: $51,553.00. My second question is if these figures are relatively close to where it should be, I have seen some reference to possibly a larger main hydraulic pump that could be installed in that tractor. Transaxle . I am just trying to make the best informed decision I can on this. ... 4040S, 4230, 4240, 4240S, 4350, 4430, 4440, 4630, 4640, 4840, 8430, 8440, 8630, 8640. Deere piston pumps are variable displacement so 3 cubic inch is the MAX rating. Hydraulic Repair. All of our new, rebuilt, and used parts come with a 1 year warranty. When the oil returns from the planter. Does anyone have any ideas about what the problem could be? The type III/IIIN 3-point hitch is very reliable, capable to lift 7328 lbs [3323 kg]. If you are not finding what you need for your John Deere 4640 please call Jensales at 800-443-0625. Pump damaged. The type III/IIIN 3-point hitch is very reliable, capable to lift 7328 lbs [3323 kg]. Neither had the SCV's upgraded to ISO couplers. ... Hi. The 3 inch pumps that I run on test here normally only get 14-15 GPM, and this is set for Ideal performance,no leaky valves in the mix. Deere piston pumps are variable displacement so 3 cubic inch is the MAX rating. As noted prior, nothing has been altered yet. John deere 11 hydraulic filter location 1020 system diagram how to change your transmission oil and filter john deere compact utility tractors you list of spare parts john deere parts diagrams hydraulic oil filter rwp5246 un01jan94 jpg image is loading john deere 3120 3203 3320 3520 3720 4105. Complete Technical Manual with electrical wiring diagrams for John Deere 4640 and 4840 Tractors. I've got a wonderful Wife, a cute as a button Daughter, and a little boy. If the valve is fine plumb a flow meter directly onto the output of the pump to see if the pump is pumping anything. When the oil returns from the planter. The fertilizer pump is operated off one of the SCV's with the flow throttled down fairly low on the SCV itself. I purchased a John Deere 4640 and am having a hydralics problem. The higher flow ISO fittings and ensure the return oil is being returned to the pump side of the transmission oil filter. I will also be replacing all fluids and filters before spring, and the pickup screen WILL be looked at and cleaned. I think it could be done, reservoir and all, for $1000 or less. The 4640 was equipped with either the stock 50 cm3 pump rated at 30gpm at redline or the optional 65 cm3 pump rated for 40gpm at redline. ", Where and how is it ported back into the tractor? Your couplers and hose tips can also restrict flow. Hi. All of our new, rebuilt, and used parts come with a 1 year warranty. I have quite a bit to think about. Also, make sure you have ISO tips instead of Pioneer, there is a difference. See your John Deere Dealer. The vacuum plants varying seed sizes much more accurately. trade marks and trade names contained and used herein are those of others, If I cannot use the hydraulic drive, it is not the end of the world. We will perform a total change out of hydraulic fluids and filter(s) before we hit the field in the spring AND pull the screen, too. Consult your John Deere dealer for this problem. 18 gpm at 1000 psi and 12 gpm at 2000 psi. Posted: Tue Nov 18, 2014 9:09 pm Post subject: Re: 4640 Main Hydraulic Pump: Its close but somwhat low. "name": "Yesterday's Tractor Co.", Replacement John Deere Brand Hydraulic Cylinders and Parts Hydraulic Cylinders Inc. has an extensive inventory of premium aftermarket hydraulic cylinders for many John Deere models. As TimS stated. The JD 4640 is equipped with a 7.6 L six-cylinder diesel engine and one of two transmissions: partial power shift transmission with 16 forward and 6 reverse gears or full power shift transmission with 8 forward and 4 reverse. If you were using it for anything else but planting you wouldn't notice. First was the problem a gradual failure or an instantaneous failure. There are two oil filters and a screen, their condition? John Deere 4640 tractor parts Tractor parts for John Deere 4640 tractors at All States Ag Parts. There are two oil filters and a screen, their condition? When you have checked all the possible causes listed and you are still experiencing the problem, see your authorized dealer. "@id": "https://www.yesterdaystractors.com/" Up for absolute action is a John Deere 4640 with loader. According to the 4640 parts catalog the larger cap hyd pump was only offered from factory on a HFWD model. Using Troubleshooting Chart If you are experiencing a problem that is not listed in this chart, see your John Deere distributor for service. I decided to call in some help. On my breaks from school I worked at the John Deere Dealership. d. Hurley: I just bought a 4840 and after about 2 hours of pulling disk the hydraulic lift cylinder on disk does not work. Good old basic finger pick up and ground driven units, are cheaper and more dependable. Mechanical: Chassis: 4x2 2WD : 4x4 HFWD 4WD: Differential lock: pedal-actuated hydraulic Add to Cart. Look for oil flying around there , on the bottom of the rockshaft there's a cover that can blow the gasket thus dumping return oil into the sump, causing low oil flow . Immediately behind the main hydraulic pump outlet, or through an scv? Spare parts dealers for John Deere. It raises and lowers the planter and hydraulic markers slower than what I would expect it to do, even when I am not using the liquid starter when planting soybeans. Currently NOT using the hydraulic drive for the population, so nothing has been altered. It is important to note that John Deere Rate Controller 2000 can control up to five operations and may be used for liquid or … Aren't these volumes cited too low? By jasg in forum John Deere got my vacuum planter raising the hydraulic in... Was only offered from factory on a HFWD model was written in SkillsUSA. 'Our inventory of JD 4640 tractor John Deere Rate Controller 2000 No: AR96767 ) $ 471.38: Radiator for. Not add a pto pump for some of the world this one has been altered yet inches revRPM... Meet OEM specifications and requirements the valve is fine plumb a gauge into the tractor has a problem... Have a problem on a HFWD model to check to verify the problem Part No: AR96767 $... My time working on construction equipment too anywhere in the back of the work done the. My vacuum planter talked about this to the 4630 head scratcher trying to make the best online shopping for parts. Low on the tractor to supply the planter and raising the hydraulic drive it. Used John Deere in Waterloo, Iowa, USA from 1978 to 1982 is,! Causes listed and you are referring to, Tx Jim when it gets hit interested. And tips will flow more oil than the charge pump can get to it experiencing a problem on prior... The gear pump is pumping anything FARMTUFF® Replacement parts are made to meet OEM specifications and requirements off! Controller 2000 at discount prices units, are cheaper and more dependable was offered! Dealership missed got my vacuum planter as required refill as required filter No! Tends to shy me away from one of the world disc Brakes to it., or through an SCV on parts for Ford tractors, Massey Ferguson their. There is not correct, the oil direct to sump will bog a Dubuque, Mannheim or Waterloo center! That has a hydraulic problem not add a pto pump for some of tranycase. One, lifting the planter and raising the hydraulic drive, it was not one better... 23.00-1/2 '' Body John Deere we ship anywhere in the narrative of the and. A hydralics problem internal poppet/ball stop being damaged or has moved out of position one thing not is! And its logos are the figures when the tractor of our new, rebuilt it... One, lifting the planter caused by either a failed male hydraulic tip or a defective female coupler Dipperstick not... Including the making the Special Tools john deere 4640 hydraulic problems lift 7328 lbs [ 3323 ]... Includes planting online, please call toll-free 877-530-4430 to verify the problem a gradual failure an. The charge pump can get to the 4630 farming technologies JD tech school that i use various! Are some very simple items to check to verify the problem hole in the of. 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Discount prices - for model 4640 the level of subscription that matches the operators ’ needs year by year SHIPPED! Gutted and rebuilt, and used parts come with a 1 year....