Doosan DX60R Shop Manual page 31

Avoid operating your machine too close to the edge of cliffs,
overhangs, and deep ditches. The ground may be weak in such
areas. If the ground collapses, the machine could fall or tip over
resulting in serious injury or death.
Remember that soil after heavy rain, blasting or after
earthquakes, is weakened.
Newly laid earth and the soil near ditches is typically loose. It
can collapse under the weight of vibration of your machine and
cause your machine to tip over.
Install the head guard (FOPS) if working in areas where there is
a danger of falling rocks.
Checks Before Starting Engine
Every day before starting the engine for the first time, carry out
the following checks. If these checks are not carried out
properly, there is a danger of serious injury.
Remove all wood chips, leaves, grass, paper and other
flammable materials accumulated in the engine compartment
and around the battery. They could cause a fire. Remove any
dirt from the window glass, mirrors, handrails, and steps.
Do not leave tools or spare parts laying around in the operator's
cabin. The vibration of the machine when traveling or during
operations may cause them to fall and damage or break the
control levers or switches. They may also get caught in the gap
of the control levers and cause the work equipment to
malfunction or move dangerously. This may lead to unexpected
accidents.
Check the coolant level, fuel level, and hydraulic tank oil level,
and check for clogged air cleaner and damage to the electrical
wiring.
Adjust the operator's seat to a position where it is easy to
operate the machine, and check the seat belt and mounts for
damage and wear.
Check the operation of the gauges and the angle of the mirrors,
and check that the safety lever is in "LOCKED" position.
If any abnormalities are found in the above checks, carry out
repairs immediately.
Track Excavator Safety SP001614
Page 23