Komatsu PC30MR-5 Operation & Maintenance Manual page 58

PRECAUTIONS FOR MAINTENANCE
• Lower the work equipment to the ground and stop the en-
gine before performing any inspection and maintenance.
• Turn the starting switch to ON position. Operate the work
equipment control lever back and forth, right and left a few
times fully to release the remaining internal pressure in the
hydraulic circuit. Then move lock lever (1) to LOCK posi-
tion (L) and turn the starting switch to OFF position.
• Check that the main power is not conducted. (After turning
the starting switch to OFF position, wait for approximately
1 minute and press the horn switch. If the horn does not
sound, power is not conducted.)
• Block the tracks from movement.
PRECAUTIONS FOR OPENING AND CLOSING FLOOR
• Do not open the floor on the slope ground or in windy
weather, otherwise it may lead to serious personal injury or
death.
• Do not open the floor when the engine is running, the door
(if the machine is equipped with the cab) is open, or the
lock lever is in Free position, otherwise it may lead to seri-
ous personal injury or death.
• Immediately after the engine is stopped, its parts and oil
are still very hot and may cause burn injury. Check that the
temperature inside of engine compartment has been drop-
ped before performing the opening or closing of floor.
• Do not get on the operator's seat when floor is opened,
otherwise it may lead to serious personal injury or death by
fall.
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WENAM00150
SAFETY