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4.3 OPERATION AND CHECKING AFTER POWER CONNECTION
• Before starting the electric motor, make sure of no presence of personnel around and
impediments, and sound a horn.
• Warm-up is required. The motor needs adequate warm-up especially in cold climates.
Failure to warm the motor may result in serious accident on account of low reactivity of the
traveling gear and crane to 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 abnormal conditions are encountered, immediately turn the
starter switch to the OFF position to bring the machine to a halt. Turn OFF the power supply
equipment breaker accordingly to shut off the supply source.
Check the Inverter unit and electric motor, the peripheries, and electric wiring for burnt smell
and parts. Promptly contact us or our sales service agency to request inspection and repair.
• Crane operational check is necessary after motor warm-up.
Keep the hook block away from the boom to avoid interference and collision.
• Exercise caution to keep the boom from contact with an operator and this machine when
slewing it.
• If crane operational check detects an abnormal event, make an emergency stop promptly and
repair a relevant part. Potential serious accident may occur if disregarded.
• Exercise caution not to drive on or entangle the cabtyre cable during crane traveling.
Staff guide personnel as necessary, and follow the lead of them.
• Keep the Inverter unit cover away from flammable materials.
The inside of the Inverter unit will rise in temperature that may lead to fire, if disregarded.
CAUTION
• Proper temperature of hydraulic oil: 50 to 80°C
The hydraulic oil should be at around 20°C regardless of operational environment such as
low-temperature operation.
• Ensure that the main switch of the radio control box is turned OFF.
1. Set the engine and electric motor switch to the “Elec. Motor”
position.
2. Insert the key into the starter switch and turn the key to
the ”START” position.
3. Release your hand from the key once the electric motor has
started.
The key will automatically return to the “ON” position.
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