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Safety Precautions
• Do not disassemble or repair the electric chain hoist by the personnel other than maintenance
engineer.
“Disassembling/Assembling Manual” and “Parts List” are provided separately for the maintenance. Disassembling
and repair must be performed by the maintenance engineer in accordance with these materials for maintenance.
• When replacing the part, be sure to use the genuine part for KITO electric chain hoist ER2,
ER2M, ER2SP and ER2SG.
Even if the part is the KITO genuine part, the part for different model may not be used. Use the correct part in
accordance with separate “Disassembling/Assembling Manual”.
Failure to comply with this content may result in death or serious injury.
Prohibited
Mandatory
• When any abnormality is observed during the maintenance (repair) of the electric chain hoist, survey
the cause by the maintenance engineer and carry out the repair.
• Be sure to keep the following when repairing the electric chain hoist:
• Be sure to turn off the power.
• Be sure to indicate “INSPECTION”.
• Carry out the repair without lifting a load.
• Be sure to pay attention to the change of the operating sound of electric chain hoist and trolley.
The change of operating sound is an important factor to judge the failure.
Failure to comply with this content may result in death or serious injury.
Chapter 3 Troubleshooting
■
General Matters on Failure Cause and Countermeasure
■
General Matters on Handling the Dual Speed VFD Model
• Do not change the VFD parameters.
When parameters need to be changed, ask our distributors nearest to the customer or KITO.
• Do not carry out the work such as maintenance and inspection within 5 minutes after power off.
Wait for the completion of discharging of the capacitor inside the VFD.
• Do not touch the controller cover as it becomes hot during operation.
• Do not touch the controller cover until about 30 minutes elapsed after the stop of operation.
• USE KITO genuine VFD.
The VFD requires the special specification for KITO. Be sure to use genuine VFD.
• Do not change the connection of the VFD.
When the wires were removed for any reason, connect them again correctly checking the wiring diagram inside the
controller cover.
• Do not carry out withstand voltage test of a circuit while the VFD is connected.
• Do not turn off the power while operating.
Failure to comply with these instructions may result in death or serious injury and the damage of VFD.
Prohibited
3
General Matters on Failure Cause and Countermeasure / General Matters on Handling the Dual Speed VFD Model
Safety Precautions
DANGER
DANGER
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