Komatsu — Komatsu PC450-6K and PC450LC-6K Hydraulic Excavator Operation & Maintenance Manual

12. OPERATION 12.4 MOVING MACHINE OFF 12.4.1 MOVING MACHINE FORWARD 1. Set swing lock switch a to the ON (actuated) position and confirm that swing lock monitor lamp b lights up. 2. Turn fuel control dial c towards the full speed position to increase the engine speed. 3. Set safety lock lever d in the FREE position, fold the work equip- ment, and raise it 40 - 50 cm (16 to 20 in) from the ground. PC450-ENG 2-57 WARNING • Before operating the travel levers, check the direction of the track frame. If the sprocket is at front, the operation of the track levers is reversed. • When moving off, check that the area around the machine is safe, and sound the horn before moving.

• Clear all personnel from the machine and the area. • Clear all obstacles from the path of the machine. • If the lever is moved inside the deceleration range, engine speed will rise suddenly. Operate the levers carefully. WARNING