Maeda MC815C, Руководство по эксплуатации, Страница: 220 / 426

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4.2 OPERATION AND CHECKING AFTER POWER CONNECTION
• Before starting the electric motor, make sure no personnel or impediments are close
to the machine and sound the horn.
• Always perform the warm-up operation. The motor needs adequate warm-up time
especially in cold climates.
Failure to warm the motor may result in a serious accident on account of slow reaction
of the travelling gear and crane from the operating lever.
• Ensure that no abnormal noise, odor, or vibration is present in and around the Inverter
unit and power unit during warm-up. If any abnormality occurs, immediately turn the
starter switch to the “OFF” position to bring the machine to an emergency stop, and
immediately turn the circuit breaker on the power supply unit to the “OFF” position to
shut off the power supply.
Check the Inverter unit and electric motor, surrounding items and electric wiring for
burning smells or damaged parts. Promptly contact us or our sales service agency to
request inspection or repair.
• Crane operational check is necessary after motor warm-up.
Keep the hook block away from the boom to avoid interference or collision.
• Exercise caution to avoid contact between the boom, the operator and any personnel
whilst slewing it.
• If crane operational check detects an abnormal event, make an emergency stop
promptly and repair any relevant part.
A potential serious accident may occur if disregarded.
• Exercise caution not to drive on or entangle the cabtire cable during crane travelling.
A member of staff should guide the way as necessary and follow their lead.
• Keep the Inverter unit cover and its surroundings away from flammable materials.
The inside of the Inverter unit will rise in temperature and that could lead to fire if
disregarded.
CAUTION
• The appropriate temperature of the hydraulic oil is 50 to 80°C.
Even when operating at low temperature by necessity, increase the temperature of the
hydraulic oil to about 20°C.
1. Insert the key into the starter switch and turn the key to
the “ON” position.
2. Set the Engine and electric motor switch to the “Electric
motor” position.