Komatsu D155AX-8E0, Operation & Maintenance Manual

Page: 164 / 420

REMARK
• When setting the parking brake lever to LOCK position, 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.
When the parking brake lever is not in LOCK position, the limit switch operates, 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 position.
If it is not locked, when you touch the blade control
lever and ripper control lever by mistake, it may lead
to serious accident.
• If the work equipment lock lever is not set securely to
LOCK position, the lock may not be applied.
Check that it is in the position shown in the figure.
• When parking the machine or when performing main-
tenance, always lower the blade or ripper to the
ground, then set the work equipment lock lever to
LOCK position.
• When pulling up or pushing down the work equipment
lock lever, be careful not to touch the blade control
lever or ripper control lever.
The work equipment lock lever is a locking device of the blade control lever and the ripper control lever.
When operating the work equipment lock lever, always use the control lever. Do not operate by holding the red
bar on the console.
When it is set to LOCK position, the TILT, RAISE, LOWER and FLOAT operations are locked.
(L) LOCK position:
The red bar on the console is lowered, and you cannot operate the blade control lever nor ripper control lever.
(F) FREE position:
The red bar on the console rises, and it blocks the passage. The work equipment moves by operating the blade
control lever and the ripper control lever.
REMARK
When starting the engine, always place the work equipment lock lever at LOCK position.
If the work equipment lock lever is not at LOCK position, 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 by using the joystick (steering,
directional and gear shift lever).
REMARK
PCCS: Palm command control system
(Electronic steering system)
EXPLANATION OF COMPONENTS OPERATION
3-102