![]() They are available online as a download from Deere (admittedly not cheap) but you could have the manual today and go from there.Įven if you decide not to do the tests yourself, reading about how they are performed will make you more knowledgable and make you capable of calling BS on a service tech that may not have gone through the proper diagnostic sequence.Īlso you should have a transmission pressure gauge and temp gauge on the cab- did you see anything abnormal on that (i.e. This unit was dismantled at Wisconsin Tractor Parts In Black Creek, WI. John Deere JD 450G 550G 650G Hydraulic Pump Dozer AT161530 23 GPM Crawler NEW HI PRESSURE. 6E5831 8Y9150 CAT 953B Crawler Loader New Hydraulic Pump. If you are serious about finding out the next step (repair or replace transmission, or scrap) then you should get that manual. All States Ag Parts has salvaged a John Deere 350 Construction & Industrial for used parts. T42183 JOHN DEERE DRIVE COUPLING FOR DOZER LOADER 350 350B 350C 350D 450C 450D 455D 450E 455E 13 SPLINE. The procedure to do so would be in your technical manual. A significant deviation from the pressures in each gear listed in the technical (service) manual will often indicate if you have an internal leak or worn clutch pack. ![]() You can perform this with a pressure test gauge fitted to a test port on the transmission. I am not familiar with the specifics of your powershift transmission (in particular if you have the torque converter or direct drive), but the typical first diagnostic step for a powershift transmission after checking fluid levels and changing filters is to test the shift pressures. One time last fall when I started the dozer, the 'Transmission Oil Temp and Pressure' light came on right away, and when I raised the parking brake lever, the pedals would not release so I could not move the dozer. If he can't, then it is just speculation and not a serious diagnosis. I have a 1992 JD550G, pedal steer, 6200 hours, 4 speed transmission that I use periodically for making logging roads. I apologize for not knowing more to help you.I would first question the Deere mechanic- if he truly can diagnose it as a worn clutch pack then he should be able to tell you the shift pressures during the pressure test. A tech manual would be my first move if it was me. So hopefully there is someone with more knowledge that can jump in here. I screwed the pooch on one of my latest attempts to diagnose something on here and I don't want a repeat of that. What I remember is, they aren't like the old Cats and Allis machines that are bolted solid to a flange. I'm not certain I follow exactly what you are referring to in movement of the clutch pack. If things are bad out of adjustment and or as you found bolts backed out or missing will cause an issue such as you have. That is why you feel the linkage move and take up the slack once you have started the machine. It will appear loose until it receives hydraulic pressure to engage it. John Deere 550G Dozer Stock 9691 1997 John Deere 550G dozer with a 4 cylinder, 80 HP diesel engine, 24' wide steel tracks, and a power shift transmission. In an attempt to answer at least part of your question, as I recall the clutch pack will kind of float on the shaft that carries it. However once you have them where they need to be then they are very trouble free. So a tech manual is a must have to get them right. John-deere-550g-lgp-crawler-tractor John Deere 550G LGP Crawler Tractor. Your adjustments are pretty critical on these machines. No other machine we owned at the time came even close to that rating.Īs Jim pointed out, if you do not have a tech manual then you really need to get one. They ran an eighty percent efficiency average for repair costs. Looking for John Deere 550G Bulldozer parts We sell a wide range of new aftermarket, used and rebuilt 550G replacement parts to get your machine back up. John Deere’s forestry equipment innovations have transformed the industry. There was very little if any transmission issues and steering issues. Deere’s bull dozer and crawler dozer series are commonly used in earthmoving, land-clearing, and roadbuilding applications. There were the usual adjustments, engine issues, undercarriage maintenance and an occasional electrical problem. We just never had any trouble out of them. ![]() We put a million hours collectively on all of our G machines that ranged from the 450G through the 650G. In my opinion the "G" series is without doubt the best overall series machine Deere ever built. Your 550G will have the same drive system. First of all let me say that I have only ever been inside one 450G.
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