Komatsu WA380-6 Operation & Maintenance Manual page 331

HANDLING MULTI FUNCTION MONO-LEVER
WORK EQUIPMENT LOCK SWITCH
Before standing up from the operator's seat, set the work equipment lock switch securely to the LOCK position. If the work
equipment lock switch is not at the LOCK position, and work equipment control lever(1) is touched by mistake, it may lead to
a serious accident.
If the work equipment lock switch is not placed securely at the LOCK position, the work equipment may move, and this may
lead to a serious accident or personal injury. Check that the lever is in the position shown in the diagram.
When operating the work equipment lock switch, check that work equipment control lever(1) is at the HOLD position.
When operating the work equipment lock switch, be careful not to touch work equipment control lever(1).
Use this switch (7) to switch the work equipment lock system
between LOCK and FREE.
Position (a): LOCK
Position (b): FREE
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WARNING
ATTACHMENTS, OPTIONS