It is available in either a 12.2 m (40’) reach, live heel log loader, or a 10.4 m (34’) reach, road builder configuration.
The excavator features a 144 kW (196 hp), EPA Tier 4 Final, Komatsu SAA6D107E-3 engine. The log loader and road builder operating weights are 89,730 lb. (40,700 kg) and 82,230 lb. (37,300 kg), respectively. Improvements include a high capacity cooling system, high drawbar pull, additional forestry guarding, narrower 11’5” (3492 mm) transport width, more comfortable operator controls and all LED lighting.
The PC290LL-11 has a new high capacity cooling system that uses wide core cooling fins (3 mm vs. the standard core’s 1.75 mm fin spacing) for the radiator, hydraulic oil cooler, and charge air cooler. The heavy-duty 1/4” (6 mm) thick cooler air intake door is waffle-screened and sealed to reduce debris accumulation and cleaning time. The final drives generate 29,000 kg (64,250 lb) of drawbar pull shovel logging and rough terrain performance. A PC390-class swing motor and drive produces high swing torque for log loading and road building.
Komatsu’s standard forestry-guarding package now includes an enhanced right hand corner guard system. The guard system now has a fully protected LED light, plus a rugged tree deflector with a “hockey stick” design that can be removed or reverse-mounted for transport. Along with the tree deflector, the track frame steps can also be removed or reverse-mounted to achieve a 3.5 m (11’5”) transport width, which meets most local regulations and reduces the need for special transport permits.
The cab is available with a 1.2 m (48”) hydraulic tilt or a 18 cm (7”) fixed cab riser. All cab and work equipment lights are now LED and provide good illumination in low light conditions for increased productivity. New lower profile pilot proportional control (PPC) levers are used to control the boom, arm and heel functions. Thumb-actuated, electro-proportional control (EPC) sliding buttons provide the operator with smoother and more precise attachment control of the grapple and bucket thumb. An updated 7” LCD monitor has a new split-display mode, showing both a rear camera view and key machine-gauge data at the same time. KOMTRAX Level 5 technology feeds the operator machine data, such as fuel and diesel exhaust fluid (DEF) levels, Komatsu Diesel Particulate Filter (DPF), regeneration status, location, cautions and maintenance alert information. Source