John Deere’s K-Series four-wheel drive wheel loader lineup’s new models — 744K-II, 824K-II, and 844K-II — meet final Tier 4 emissions standards. The 744K-II (303 hp), 824K-II (333 hp), and 844K-II (377 hp) employ cooled exhaust gas recirculation (EGR), high-uptime exhaust filters, and selective catalytic reduction (SCR).
The K-Series-II loaders come equipped with larger, higher-capacity Teammate V Axles (744K-II & 824K-II) with standard cooling and filtration, and on-the-fly engageable front differential lock, giving operators heavy-duty traction for the most demanding terrain. For added protection, axle oil is filtered by continuously cleaning wear particle and debris out of the oil. Together, this system provides increased axle reliability, durability and longevity, according to the company.
Brake reactors and automatic self-adjustors were added to eliminate brake drag and to maintain a constant brake running clearance with better compliance and less heat. The hydraulic tank was moved underneath the steps (FT4 models only) to maintain excellent rear visibility without growing the size of the rear hood.
To eliminate downtime, K-Series-II FT4 loaders are equipped with remote battery terminals for faster and easier jump-starting. The engine compartment can remain closed and locked to charge the batteries, which reduces the threat of vandalism.