6. Replacing Parts
6-2. Replacing the Electrical Parts
6-2-1. Precautions in Adjustment
Pay attention to the followings when opening the Control Box for maintenance or inspection.
Electric shock:
Large capacitors tend to retain high voltage for up to 5 minutes after turning OFF the power, and therefore the
following operations must be done at least 5 minutes after turning OFF the power.
Opening/closing the control box
Inserting/removing connectors
Measuring resistance
Other operations that involve touching anything inside the control box
Some inspections require measuring the voltage while the power is turned ON with the control box open.
In such cases, take care never to touch anywhere except the measurement locations. Furthermore, always
keep in mind that high voltage remains for approximately 5 minutes after turning OFF the power.
Injury
Take care not to cut fingers on metal parts such as heat sinks or covers when inserting and removing
connectors or measuring.
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING
TO THE INSTRUCTIONS
CAUTION
DOUBLE POLE/NEUTRAL FUSING
GT-3 Series
309
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