Dealer Ruined This John Deere 850J—We Try to Fix the Damage

In this video, we tackle a massive challenge: a John Deere 850J dozer that came to us with serious transmission problems, even after reportedly being worked on by another shop! This isn't just any repair; it's about undoing a Frankenstein mess. Join us as we dive deep into the 850J's transmission pumps and entire system to diagnose the "bad stuff" left behind. 0:00 - Initial Transmission Pressure Check & Problem Indication 0:09 - Discovery of Metallic Contamination in Oil 0:20 - Military Dozer Background & Existing Transmission Issue 2:37 - Erroneous High Pressure Reading Confirmed in Cab 3:15 - Troubleshooting & Identifying Faulty Sensor 3:42 - New Sensor Fixes Pressure Reading 4:22 - Confirmation of Widespread Metallic Contamination 5:26 - Unflushed Cooler & Tank as Contamination Sources 7:09 - Calibration Attempts Fail Due to Internal Damage 8:20 - Decision to Return Dozer for Full Overhaul 27:54 - Detailed Inspection of Contaminated Pumps & Valves 37:10 - Summary of Findings & Next Steps Join our members only channel for early content and behind the scenes action!    / @c_cequipment   Get yourself a pair of Brunt boots like we wear Use code CCE10 at checkout! https://bruntworkwear.com/CCE10 C&C Equipment stickers and merchandise can be found here https://ccsurplusparts.com/collection... Get yourself a pair of Brunt boots like we wear Use code CCE10 at checkout! https://bruntworkwear.com/CCE10 Thanks for watching Facebook   / candcequipment   Instagram   / ccequipment   Tiktok   / c_cequipment   Website https://www.ccsurplus.com/default.htm Email [email protected]