7-2
1. PRECAUTIONS (FOR ENGINE AND ELECTRIC MOTOR SPECIFICATION)
The following precautions should always be observed when using the machine abiding by
engine and electric motor specifications. Potential serious accident may occur if disregarded.
• Installation of this machine must comply with laws and regulations of your country.
Contact us or our sales service agency if no laws and regulations are applied.
• Only personnel qualified according to laws and regulations of your country are allowed to
establish power connection of power supply equipment, inspect and repair the electric
system. Contact us or our sales service agency if no laws and regulations are applied.
• Operation and storage of this machine must satisfy the requirements listed below:
• Operating temperature: -10 to 40°C (no frost)
• Storage temperature: -20 to 60°C
• Operating humidity: Max. 90%RH (no condensation)
• Atmosphere: Outdoor environment free from explosive, flammable, and corrosive gases,
moisture, and excessive dust particles
• Altitude: Max. 1000m
• Vibration: Max. 0.5G
• Turn OFF the power supply equipment breaker promptly in the event of an abnormal event in
this machine during operation. Potential fire or electric shock may occur if disregarded.
• Turn OFF the power supply equipment breaker promptly in the event of a power failure during
operation. This machine may go into action upon energization.
• Always turn OFF the power supply equipment breaker before performing inspection and
maintenance of the electric system. Potential electric shock may occur during work if
disregarded. Before inspection and maintenance, inform all personnel to alert them of your
action. Be sure to attach a warning tag, “Do Not Touch”, to the power supply equipment
breaker for the prevention of accidental breaker operation conducted by other personnel.
• Always turn OFF the power supply equipment breaker and wait for 10 minutes or longer before
performing inspection and maintenance of the electric system.
Ensure that no voltage is applied to the power supply box with a tester.
• All the parts will be at elevated temperatures immediately after machine operation.
Perform inspection and maintenance of the electric system according to the procedure
provided in this manual only after the parts drop in temperature for safety. Potential burn may
occur if disregarded.
• Keep the power supply box and inverter board away from water.
The machine goes out of order that causes malfunction if the electric system is wetted.
Exercise due caution to handle the electric system.
• Contact us or our sales service agency to request repair of the inside of the inverter board,
when necessary.
CAUTION
See “Safety” for safety precautions that are not provided in this section.
The weight (mass) of a machine varies with machine types between a standard specification
machine and a machine abiding by engine and electric motor specifications.
See the following figure for the weight (mass) of the machine described in “Safety 2.3
WORKING WITH CRANE” and loads imposed on one wire rope for machine hoisting with four
wire ropes.
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