Self-adjusting Idler Support

 

 

The self-adjusting idler support provides constant and even tension on idler guide plates reducing noise and vibration and increasing undercarriage life.

 

Modular Design

  

One of the design goals behind the creation of the D51 was to manufacture a more durable machine. This was achieved by reducing component complexity and using a strong modular design for increased serviceability and durability.

 

One-piece Nose Guard

Simplified high-rigidity structure with thicker plates reduces vibration and noise.

Dozer Frame

Steel castings reduce the number of welds, improving C-frame rigidity and strength.

Heavy-duty Undercarriage

 

Large link, large bushing diameter, and wider sprocket teeth extend undercarriage life. The two-carrier roller design maintains track tension and alignment.

Monocoque Track Frame

Komatsu’s monocoque track frame design using thicker box section material and fewer welded components provides increased rigidity and strength.

Mainframe

 

High-rigidity simple hull frame structure combined with thick plates and steel castings provide increased reliability and durability.