John Deere 644K Wheel Loader

For a wheel loader like the John Deere 644K, keeping high-load pivot points and hydraulic connections consistently greased is essential to reliable operation. This machine was outfitted with a ReliaMAX™ automatic lubrication system featuring an 8 kg electric grease pump filled with Almamoly™ HD Grease (1488), a premium EP grease formulated to handle shock loading, resist water washout, and protect against metal-to-metal contact under extreme pressure.

The system services 21 lubrication points, covering the bucket locks, pins, dog bones, bell crank, boom cylinders, articulation joints, steering cylinders, and boom pivots. A series progressive divider valve layout ensures precise grease delivery to each location, while fault monitoring features help operators confirm the system is working as intended. Automating lubrication reduces the need for daily manual greasing, helping prevent wear and minimizing service downtime in demanding load-and-carry operations.