Page 1
Page 2
Page 3
Page 4
Page 5
Page 6
Page 7
Page 8
Page 9
Page 10
Page 11
Page 12
Page 13
Page 14
Page 15
Page 16
Page 17
Page 18
Page 19
Page 20
Page 21
Page 22
Page 23
Page 24
New Komatsu HM400-5 Articulated Dump Truck POWER PERFORMANCE AND PRODUCTIVITY ENSURED BY KOMATSU CARE K Komatsus new HM400-5 articulated dump truck provides the productivity and performance users expect with a Tier 4 Final engine that uses less fuel and cuts operating costs. The 469-hp truck with a 44.1-ton payload is designed for high productivity. The low 10-foot-5- inch loading height matches with a 40- to 60-ton excavator or a 5.5- to 7.5-cubic-yard wheel loader for quick loading. Two single-staged body lift cylinders provide a 70-degree dump angle. The operator can select between Economy and Power modes to match the application or work conditions. Soft ground conditions are no challenge for the HM400 thanks to the Komatsu Traction Control System. If speed sensors on the transmission output shafts detect tire slippage they automatically apply the inter-axle lock providing power to all three axles. If slippage continues four independent brakes can be applied to the slipping wheels to regain traction. The six-speed transmission automatically selects the best gear based on speed engine rpm and shift position for powerful acceleration smooth down-shifting and synchronized engine speed when climbing slopes. An integrated payload meter is now standard. Operators can see the loaded material weight on an LCD monitor and the loader operator can see the weight on external display lamps. The operators cab has been reworked and features a new rounded dash panel with easy-to-reach switches and access to machine controls. The center-mounted seat provides excellent visibility during operation and an aux- iliary input for a smartphone has been added in the cab. Because routine maintenance is the key to reducing downtime Komatsu has made service access easier. The engine hood is made of lightweight fiberglass and the cab tilts forward for easy access to the transmission with a standard electric tilt function. The truck also has increased cooling capacity and is equipped with two hydraulically driven reversible fans to keep the radiator and charge air cooler clean. Like all Tier 4 Final Komatsu models the HM400-5 is covered by Komatsu CARE which provides com- plimentary factory-scheduled maintenance for the first three years or 2000 hours. PRODUCT SPOTLIGHT The 469-hp truck with a 44.1-ton payload is designed for high productivity. The low 10-foot- 5-inch loading height matches with a 40- to 60-ton excavator or a 5.5- to 7.5-cubic-yard wheel loader for quick loading. 8