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Precautions in maintenance and inspection
Persons other than approved persons (specialists) must not maintain, inspect, or repair this unit.
Doing so may cause electric shock, injury, or fire.
To repair this unit or to replace defective parts, please contact the distributor of your purchase or
any service company.
Precautions to be taken by a specialist contractor
When performing maintenance, inspection, or repair, be sure to wear sufficiently safe clothing. Not
doing so may cause electric shock or injury.
When performing maintenance, inspection, or repair, turn off all the input power from a switch on
the distribution panel, and check to see that power is OFF. Not doing so may cause electric shock
or injury.
The workers must put a "Do not turn on this switch!" sign on the switch on the power distribution
panel in order to prevent others than the workers from touching the switch. Not doing so may cause
electric shock or injury.
Before maintaining, inspecting, or repairing this unit, read this INSTRUCTION MANUAL thoroughly to
perform proper work. Improper work may cause electric shock or fire.
Before performing work, remove metal objects such as watches. Wearing metal objects during
work may cause electric shock or injury.
When performing work, place a sign, "Keep out! Authorized personnel only!", in the working area to
prevent other persons from entering the working area inadvertently. Not doing so may cause elec-
tric shock or injury.
Use insulated tools. Not doing so may cause electric shock.
Do not touch the high temperature parts such as transformers and heat discharging fin. Such parts
may cause injury even after turning off power.
Select replacement parts of same ratings and same type. Not doing so may cause fire.
PROHIBITED
CAUTION
DANGER
CAUTION
5
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