![]() ![]() SmartGrade integrates harnesses and components into the machine for added convenience, making external masts or harnesses a thing of the past. SmartGrade™ - John Deere’s fully integrated 3D GNSS grade control system.Slope Control can be installed via upgrade kit on all existing L-Series dozers. This technology enables an easy upgrade path to a SmartGrade system. Slope control allows the operator to view and set blade slope while the system automatically controls the blade to maintain the desired slope. Slope Control – An entry-level grade control system that assists operators in grading smooth, planer surfaces. ![]() Standard EH Controls – makes it feasible to add on any kind of grade control system.The best part? Our machine technology can be upgraded at any time, from entry-level to advanced, know you have the flexibility to upgrade when the time is right. John Deere precision construction technology enables operators to make accurate grading passes while significantly reducing re-work. John Deere L-Series dozers have technology options that will increase productivity, allowing you to get to grade faster with fewer passes. Looking for a return on your investment? Look no further. Viscous cab mounts improve the ride quality and aid in the noise reduction. Reduced noise - Cab noise is reduced 27 percent in the 850L compared to the previous series.Angled seat for all day comfort – The seat in the 850L is angled to ease operator fatigue when making ripping passes.Hydraulic response is customizable and can be fine-tuned to match the application and operator preference. Re-designed joysticks – New ergonomic joystick grips fit comfortably in the operators’ hands and include proportional blade angle control.Improve situational awareness with the rearview camera. Premium cab options – Long days won’t seem so long with the leather-accented air suspension seat with heat and ventilation or automatic temperature control.Get unmatched visibility - The 850L has a 15 percent larger operator station focused on enhanced visibility and comfort has 10 percent more glass area, and a streamlined hood profile, providing exceptional visibility to the blade and jobsite.Operators will appreciate improved visibility with clear sight lines to the blade corners and around the machine. Not something that I ever want to do again, but for a $22,000 savings in buying a replacement unit to having it rebuilt, I guess it's kind of a no brainer.Looking for ways to retain skilled operators? All L-Series dozers provide a quiet, comfortable ride with precise control, and convenience that is even better than previous John Deere cabs. Installing it again was ALLOT harder then taking it out. They said they would not warrantee the pump unless they went through the drive motor to make sure it was clean of debris. Cost to rebuild the pump was $2K and the drive motor was another grand. I pulled the pump and drive motor out myself and brought them to the shop to have them rebuilt. I had to back it up from the area I was clearing, to my work shop. That quickly went from very annoying, to totally losing all forward control. I would push forward, then try to go backwards, only to have it sort of turn on my first and do it's own thing. When the pump started to fail, the first thing that I noticed was that it stopped responding to what direction I wanted to go. ![]() Hopefully your local Deere dealer will be more helpful then what I experienced. They have allot of power and I'm pleased with it overall, just not excited about Case and their lack of support for this dozer. I use my dozer on my land, so it's not that big a deal. On my Case, it either does fine, or you have to give it a little more pressure on one side or the other to keep it going straight. Like already mentioned, one of the biggest complaints about the drive of the pumps is keeping them adjusted so they track evenly. They machined those parts themselves after failing to find them for sale anywhere. Same story, Deere no longer carried those parts and you had to buy an upgrade, replacement pump. Later, when I had it in the shop for a rebuild, the guys at the shop called Deere to see if they had a few parts that they couldn't find. I might be that I have a Case dozer, but they would never confirm that it's the same pump, but never got back to me on the price of a replacement pump. I called Deere and they pretty much said the same thing, but were not as helpful about it. When I lost control of one of my pumps, I was told by Case that they no longer support those pumps and that a retrofit, new, replacement pump would cost $25,000. I don't know what model 850 they were used in, but it is hydrostatic drive. I have a Case 1550 dozer and it has the same Sundstrand hydraulic pumps in it as the 850 Deere. ![]()
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