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

11. EXPLANATION OF COMPONENTS 11.3 CONTROL LEVERS, PEDALS 1. SAFETY LOCK LEVER WARNING When leaving the operator’s compartment, set the safety lock lever securely to the LOCK position. If the control levers are not locked, and they are touched by mistake, this may lead to a serious accident. If the safety lock lever is not placed securely in the LOCK posi- tion, the control levers may not be properly locked. Check that the situation is as shown in the diagram. When the safety lock lever is raised, take care not to touch the work equipment control lever.

If the safety lock lever is not properly locked at the upper position, the work equipment and swing will move, creating a potentially dangerous situation. When the safety lock lever is lowered, take care not to touch the work equipment control lever. PC450-ENG 2-19