約翰迪爾944K混合動力輪式裝載機的耐用性較高，有客戶表示其944K裝載機已經在工地工作了100萬小時。
「我們在開發機器時，始終將客戶的需求（例如耐用性、生產率、盈利能力和較低的運營成本等）放在首位。基於944K裝載機實現工作100萬小時，我們確定電力驅動的機器為我們的客戶提供了久經考驗的耐用性和性能優勢。」 約翰迪爾解決方案營銷經理Grant Van Tine說，「我們一直在尋找新的方法來改善客戶所需的設備，並且可以使用我們經過實地測試的設計來開發和完善更多的解決方案。
944K混合動力車型於2015年推出，為客戶提供了可靠、經濟高效的解決方案。 944K混合動力車具有536馬力的發動機，在保持動臂和鏟鬥速度的同時，提供了令人印象深刻的扭矩和響應能力。Cornejo＆Sons（Summit Materials）的經理Adam Ware說：「 944K滿足了我們的生產要求，而且成本更低。另一臺機器每小時消耗約24加侖燃料，而944K在執行相同工作時每小時消耗約9加侖。」
除了省油功能外，944K混合動力機型還集成了其他功能以提供長期性能，尤其是在採石場或大型裝卸應用中，包括無刷交流發電機和電動機、水冷制動電阻器和固態電力電子設備等。與傳統的傳動系統相比，944K的電驅動系統通過取消變矩器和傳動裝置的改造，大大降低了客戶的運營成本。
本文源自Heavy Equipment Guide，原文如下：
John Deere hybrid wheel loader reaches 1 million field hours
A testament to the durability of John Deere machines, the 944K hybrid wheel loader has logged 1 million operating hours in the field.
"Whenever we develop a machine, customer needs, such as durability, productivity, profitability and low operating costs, are always at the forefront of our designs. By reaching the 1 million-hour mark on our 944K loaders, we are affirming that electrically driven machines offer proven durability and performance advantages for our customers," said Grant Van Tine, solutions marketing manager for John Deere. "We're always looking for new ways to improve upon the equipment our customers need and can use our field-proven design to develop and perfect even more solutions in the future.
First launching in 2015, the 944K Hybrid model provides customers with a reliable, cost-effective solution. The 944K hybrid features a 536-horsepower engine, which delivers impressive torque and responsiveness while maintaining boom and bucket speed. At Cornejo & Sons (Summit Materials), the 944K replaced a size-class larger competitive wheel loader. "The 944K meets our production requirements as well as our previous piece of equipment, and at a lower cost," said Adam Ware, site manager for Cornejo & Sons (Summit Materials), which owns a 944K hybrid wheel loader. "The other machine burned about 24 gallons of fuel an hour, where the 944K burns around 9 gallons per hour while doing the same work."
In addition to its fuel-saving capabilities, the 944K hybrid also incorporates other features to deliver long-term performance, especially in quarry or large loadout appliCATions. Most notable are the brushless AC generators and motors, water-cooled brake resistors and solid-state power electronics. The 944K's electric drive system significantly reduces operating costs for customers compared to conventional drivetrains by eliminating torque converter and transmission rebuilds at mid-life.
Other key features include standard traction control, which automatically limits torque to any wheel when slippage occurs, increasing machine traction in poor underfoot conditions, and enhanced rimpull control to virtually eliminate tire spin and slicing. Coast control reduces service-brake wear and includes functions, like dynamic braking in a hydrostatic transmission, slowing the loader without touching a pedal and helping to reduce service-break component wear.
Source: https://www.heavyequipmentguide.ca/article/35111/john-deere-hybrid-wheel-loader-reaches-1-million-field-hours