It also displays the machine’s configurable settings. John DeereVia the SSM, buttons are all centralized to enable features such as automatic turbocharger cool-down, auto shutdown, auto idle, and eco mode.įurther, the touchscreen displays not only the rearview camera but also makes navigation and interaction with slope control and other function easier. The various new technology offerings are integrated into easy-to-use touchscreen displays. In addition, John Deere says, the Sealed Switch Module (SSM) reduces the number of wires and mechanical switches and provides keyless start. The hydraulic and transmission response settings can be set to fit any operator's preferences. The company also has taken into consideration that every operator is different with varying techniques and preferences. In controlĪ new operator-presence system uses a built-in sensor to detect that the seat is occupied before the park brake is released to prevent unintentional movement. We will make sure to check the shift linkage.An optional LED light package and a rearview camera are displayed on a larger and brighter 8-inch touchscreen monitor. I have found that the clutch drums, collectors and a few other parts are very hard to find replacements for. When and if the clutch back no longer meshes with the drum, will the clutch start to slip? In regards to the clutch backs, do you know why the clutch drum doesn't have full sprogs where the clutch back sits? There looks to be decades of wear on that part of the drum and only minor wear on the clutch backs which make me think they have been replaced. My guess is that the logging company that had the dozer did a minimal repair just to get the machine running and sellable for auction. We found aftermarket sealant on every part that had been taken off and re-installed, marring on many non-sealing surfaces due to poor disassembly and install. for example, the converter looks new, the friction discs in the forward and reverse clutches look new but we found that many of the steel discs were warped(1 in the forward and all in the reverse clutch), the clutch backs look to have been replaced. None of the o-rings on the lube system look to have been replaced.įrom what i can tell the dozer has had some serious repairs done to it in the past. We were pretty sure that the machine was just a 550 but i wrote it as its seen on the machines badge.Īll the rings i have got access to look almost new. Once we have it back together we will be sure to do pressure tests to see where everything stands. We found a few things we could tell needed replacing, most of them we were able to order and will have next week. Since we were that far in we thought it best to inspect the trans. First off because we didn't know that was a helpful piece of info to have and secondly there was such a large oil leak that we felt we needed to address that first. Hoping that all these repairs will stop the oil leak.Īs for the issue with reverse being weak, it worked fine on flat ground but would not bake up a hill and barely backed onto our trailer when we bought it.Īny info or advice yall have would be awesome and greatly appreciated. Kinda wondering if the converter housing(which holds most or all of the engine weight) being unsupported is causing the converter seal to not be centric around the converter. We have repaired the housing the best possible. We also found that the converter housing had broke or worn threads for the 4 large bolts that hold through the frame rails into the sides of the housing. Now that everything is apart it doesn't seem to be damaged but could very likely be worn. Our initial thought was that the converter oil seal had gone. It looked like all the oil was coming out of the small hole at the bottom the the converter housing, but upon tear down I noticed the fitting on the trans pump was not tight against the pump housing, feel like that might have been some of the leaking we saw. The main reason we torn into the machine was because we had a really bad oil leak from the bottom of the converter housing. We will have to see if the collectors are still available, we have found some parts that we can't get from john deere.ĭO YOU KNOW OF ANY PLACES TO FIND OBSILITE PARST? If the inside to the collector is supposed to be completely smooth then yes they are slightly grooved. We haven't seen what a new collector looks like so it's hard to say if they are grooved. The collectors for first/second and third do show signs of where the shaft seals sit. We didn't notice any problems with first, second and third so we left those clutch packs and shafts in place. We have pulled the converter housing out to get access to the front of the powershift housing which allowed us to pull the forward and reverse clutches.
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