Komatsu D51EX-24, Operation & Maintenance Manual

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REMARK
• When setting the parking brake lever to LOCK position, (L) return the joystick (steering, directional and gear
shift lever) to N (NEUTRAL) position.
• When starting the engine, set the parking brake lever to LOCK position (L).
When the parking brake lever is not in LOCK position (L), the limit switch is actuated, and the engine does
not start.
WORK EQUIPMENT LOCK LEVER
k k
WARNING
• When standing up from the operator's seat, set the work equipment lock lever securely to LOCK po-
sition (L).
If the work equipment lock lever is not at LOCK position (L) and the blade control lever is touched
by mistake, it may lead to serious accident.
• If the work equipment lock lever is not set securely to LOCK position (L), the lock may not be ap-
plied.
Check that the work equipment lock lever is under the state in the figure.
• When parking the machine or performing the maintenance, always lower the work equipment to the
ground, and then set the work equipment lock lever to LOCK position (L).
• When pulling up or pushing down the work equipment lock lever, be careful not to touch the blade
control lever.
The work equipment lock lever is a locking device of the blade.
When it is set to LOCK position (L), the TILT, RAISE, LOWER,
and FLOAT operations are locked.
When the work equipment lock lever is set to LOCK position
(L), the blade control lever can be moved but blade does not
move since the oil pressure for controlling the blade is locked.
Position (L)
LOCK
Position (F)
FREE
REMARK
When starting the engine, always set the work equipment lock lever to LOCK position (L) in order to secure the
safety.
If the work equipment lock lever is not in LOCK position (L), the limit switch is actuated and the engine will not
start.
JOYSTICK (STEERING, DIRECTIONAL AND GEAR SHIFT LEVER) (PCCS LEV-
ER)
Perform forward/reverse switching operation, steering opera-
tion, and counter-rotation turn operation by using the joystick
(steering, directional and gear shift lever).
REMARK
PCCS: Palm command control system
(Electronic steering system)
EXPLANATION OF COMPONENTS OPERATION
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