Doosan DX140LC, Operation And Maintenance Manual

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OP000596 Safety
1-26
NEVER start the engine if there is any indication that
maintenance or service work is in progress, or if a warning tag is
attached to controls in the cabin.
A machine that has not been used recently, or is being operated
in extremely cold temperatures, could require a warm-up or
maintenance service before start-up.
Check gauges and monitor displays for normal operation before
starting the engine. Listen for unusual noises and remain alert
for other potentially hazardous conditions at the start of the work
cycle.
Do not short circuit the starting motor to start the engine. This is
not only dangerous, but may also damage the machine.
When starting the engine, sound the horn as an alert.
Start and operate the machine only while seated.
Before Operating Machine
If checks are not carried out properly after starting the engine, it
may result in a delay in discovering abnormalities in the
machine, and this may lead to personal injury or damage to the
machine.
Carry out the checks in an open area where there are no
obstructions. Do not let anyone near the machine when carrying
out the checks.
• Check the operating condition of the equipment, and
the actuation of the bucket, arm, boom, travel, and
swing systems.
• Check the machine for any abnormal noise, vibration,
heat, smell, or abnormality with the gauges. Check
also for leakage of air, oil, and fuel.
• If any abnormality is found, repair the problem
immediately. If the machine is used without repairing
the problems, it may lead to unexpected injury or
failure.
• Clear all personnel from directly around machine and
from the area.
• Clear all obstacles from the machine's path. Beware
of hazards.
• Be sure that all windows are clean. Secure the doors
and the windows in the open position or in the shut
position.
• Adjust the rear view mirrors for best visibility close to
the machine. Make sure that the horn, the travel
alarm (if equipped), and all other warning devices are
working properly.
• Fasten the seat belt securely.