Komatsu WA320-5H Operation & Maintenance Manual page 99

EXPLANATION OF COMPONENTS
SAFETY LOCK LEVER (FOR WORK EQUIPMENT LEVER)
q Before leaving the operator's seat, set the safety lock lever securely to the LOCK position. If the
safety lock lever is not at the LOCK position, and work equipment control lever is touched by mistake,
it may lead to a serious accident.
q If the safety lock lever is not placed securely at the LOCK position, the work equipment control lever
may move, and this may lead to a serious accident or personal injury. Check that the lever is in the
LOCK position.
q When operating the safety lock lever, check that the work equipment control lever is held securely at
the HOLD position.
q When pulling up or pushing down the safety lock lever, be careful not to touch work equipment control
lever.
This lever (2) is a lock device for the work equipment control
lever.
Push the safety lock lever down to lock it.
REMARK
If the safety lock lever is at the LOCK position, the work equip-
ment will not move even when the work equipment control
lever is operated.
LIFT ARM CONTROL LEVER
This lever (3) is used to operate the lift arm.
NOTICE
Do not use the FLOAT position when lowering the bucket.
Use the FLOAT position when leveling, see "LEVELING
OPERATIONS (3-89)".
Position (a): RAISE
When the lift arm control lever is pulled further
from the RAISE position, the lever is stopped in
this position until the lift arm reaches the preset
position of the kickout, and the lever is returned to
the HOLD position.
Position (b): HOLD
The lift arm is kept in the same position.
Position (c): LOWER
Position (d): FLOAT
The lift arm moves freely under external force.
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WARNING
OPERATION