Komatsu Mid-Size Wheel Loaders

Multi-Mode Power and Shifting

Construction Equipment - July 1, 2006

Walt Moore
Senior Editor

Komatsu loaders in 200-to-300-hp category feature a two-mode engine-power feature, which provides "normal" mode for general loading and fuel-efficiency, and a "power" setting for hard digging or hill-climbing situations. In addition, the machines feature a four-mode transmission shifting system including a manual-control setting and three "auto" settings.

Number of models: 3

New models: W190B

Product-line features: Loaders have a variable transmission cutoff feature that allows the operator to select the point at which the left pedal neutralizes the transmission. Also part of the design is a dual-speed hydraulic system, which generates extra hydraulic flow in lifting and loading situations, but diverts that power to tractive effort in hard digging.

Specifications
Model	Horsepower (Rated)	Operating Weight (lb.)*	Bucket Range Or Nominal Bucket (cu. yd.)**
WA400-5	200	41,200	4.1–5.6
WA450-5	261	49,300	14.7–6.8
WA480-5	271	54,100	5.0–8.0
* Approximate operating weight; exact weight varies with specific configuration **Approximate bucket capacities