6 days ago - Here for sale is a John Deere 5' 503 3-Point Rotary Cutter. We have put new blades and blade bolts on it as well as a tail wheel assembly. JD 503 rotary cutter. John Deere/Frontier - Rotary Cutter (Brush Hog) - (Part 1 of. I have that same mower with the slip clutch. The shaft is metric and weasler has replacement parts. Most farm stores stock them. If you have the inside shaft that connects to the gearbox, take it with you and fit the ioutside shaft and find a yoke to match. Or you can use a caliper and measure the inside diameter. Be a lot cheaper than deere to get weasler. Mine was an italian style tri-lobe shaft. John Deere 503 Bush Hog ManualLooking at the pic I attached, I think the part number sticker is still there. I will go take a look and post back the number in a while. I can send you a pdf of the deere aftermarket replacement parts catalog with all the cross numbers. Send me an email at hoglegwilly at gmail dot com and I will send back the pdf. The reason I know about the shafts is that I twisted mine. 2006 mitsubishi lancer es repair manual. Had it on my 65hp deere tractor and hit a high spot. The slip clutch had frozen and did not slip. The shaft did:shock: I now check the slip clutch at the start of each season and usually use it on my 35hp ford tractor that will lug down the engine if the mower gets too much work. The bigger deere tractor is too much for this light mower. John Here is a pic with the shaft in the bottom. I can take a better pic if you need to see the parts up close. This post was edited by Hogleg at 06:15:07 02/11/13 2 times. Just hook the rotary cutter up to the tractor you are going to be using it on. Measure the lenght of shaft you need. You want it to over lap at least a foot. As for the shear both or clutch issue. If you are not going to be doing much rough mowing then a shear bolt is fine. If you are going to be mowing in rough stuff then the cost of a slip clutch will pay in the long run. Also remember the JD 503 is the lightest duty cutter JD made in the 5 foot model. Check with your JD salesman. Many times you can get the complete shaft through whole good way cheaper than parts. The only issue would be that the JD 503 maybe old enough that the complete assembly is no longer available. What model 'rotary cutter' do you have? Are you aware of how to check the length of the PTO shaft? On some tractors, different lengths are necessary. Have you checked the gearbox for oil level? Deere will have the correct oil for the gearbox, if it is needed. Have you inspected the blades for cracks? They should be replaced if damaged. Do you know how to adjust the height of the cutter (have a manual)? The tail wheel adjusts the height of the rear of the deck, and the 3pt arms carry the front of the deck and control the height (should be slightly lower than the rear for best cutting). I'm puzzled by the 3 grease zirks 'on each end' that you mentioned. There is one in the tail wheel hub, one on the upright shaft of the rear wheel, and two in the PTO shaft universal joints (at least on mine). A search of rotary cutters herein will give you a lot of reading and helpful information. ( What model 'rotary cutter' do you have? ) John Deere 503 ( Are you aware of how to check the length of the PTO shaft? On some tractors, different lengths are necessary.) There are differant lengths? Hmm ( Have you checked the gearbox for oil level? Deere will have the correct oil for the gearbox, if it is needed. ) That's kinda one of my questions, There seems to be a plug on the top and a plug on the side. ( Have you inspected the blades for cracks? They should be replaced if damaged. ) I'm thinking this is easiest done after I hook it up and lift it with the tractor? ( Do you know how to adjust the height of the cutter (have a manual)? The tail wheel adjusts the height of the rear of the deck, and the 3pt arms carry the front of the deck and control the height (should be slightly lower than the rear for best cutting) I've no clue what to hook up first or how to hook it up. [img]/forums/images/graemlins/smile.gif[/img] Nope, and no manual. What's up with tractor mfg's anyhow? In my world, (computers) you can d/l just about any manual. But in this world, 20,000.00 buys you no loyalty from the mfg. They should make them available. ( I'm puzzled by the 3 grease zirks 'on each end' that you mentioned. There is one in the tail wheel hub, one on the upright shaft of the rear wheel, and two in the PTO shaft universal joints (at least on mine). ) I think two (in the semi-darkness) were just tit's off the shroud. I didn't see the one at the wheel. Otherwise, there are two at each end of the shaft. ( A search of rotary cutters herein will give you a lot of reading and helpful information. ) Guess I'm glad I waited, but I'm choppin at the bit here to hook her up and cut some brush! I've learned that having the cutter on castors makes hook up a WHOLE LOT easier.
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