Safety precautions
1 – 6
Precautions before and after starting the engine
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n Securing firm ground!
If working sites or tramming paths are rough, instability and vibration of the machine can cause
accidents or property damage.
• Maintain graded working sited and roadways.
Operate the hydraulic excavator on even, firm ground only. Do not operate the excavator on piles
or other unstable ground.
• When operating the hydraulic excavator on a building, a floor may collapses and the excavator
may tip over.
Before operation, verify that the floor is strong enough to support the excavator. The floor also
should be strong enough to bear the breaking impact. Reinforce the floor if necessary.
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n Cleaning around the operator seat!
• Don't put a tool or part around the operator seat, or the operation will be hindered.
• Wipe away mud or oil from the floor, pedal and lever. Otherwise, mis-operation will occur.
• Don't operate pedals and levers from outside of the operator station. The machine may move
unexpectedly and accidents can result from operating the machine from outside of the operator
station.
• To operate the hydraulic breaker safely, have a seat securely in the operator station.
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