2Cables And Hoses; Periodic Check - Panasonic YC-300BZ3YHD Operating Instructions Manual

Maintenance and inspection
10.1.2 Cables and hoses
Check item
Of this product
Grounding wires Of the base metal
Water coolant (if used)
Input cables Cable coating
• If any current-carrying parts is exposed other than the base-
• If any heavy items not placed on the cable.
Each connection
Output cables
Cable coating
• If any current-carrying parts is exposed other than the base-
• If any heavy items not placed on the cable.
Connector
Remote controller
• If any current-carrying parts is exposed other than the base-
and torch switch
cables
• If any heavy items not placed on the cable.
Joint
Hoses
Hose band (if used)
If any heavy items not placed on the cable.

10.2 Periodic check

Touching any current-carrying parts may cause a fatal electric shock or burn
injury
• To secure physical safety, only educated and/or skilled persons who well understand the welding
power source should perform troubleshooting work.
• As for the inside check, make sure to conduct it at least 5 minutes after turning the power off in consid-
eration of electric discharge from a capacitor.
• When removing the case's top panel, etc., take care so that no other person approaches this product
without discretion (for example, by enclosing the product).
To prevent the electrostatic destruction of semiconductor parts and the printed
circuit board, observe the following.
Allow static electricity to escape by, for example, touching the metal parts of the case with your hand
before touching the equipment, the conductor of wire and/or the printed circuit board.
Notice About cleaning of plastic parts

Plastic parts may be melted or deformed when they are subjected to organic solvent (benzine, toluene, kerosene,
gasoline, etc.).

When cleaning them, soak a soft cloth with a small amount of water or diluted mild detergent for home use, and
wring it and use for wiping those parts.
44
If the grounding wires are removed or
fastened securely.
Wear or damage.
material-side connection.
If it is fastened securely.
Wear or damage.
material-side connection.
If it is inserted completely.
material-side connection.
If it is fastened securely.
In case a hose band is used, if there is
any loose attachment.
Wear or damage.
Check point
WARNING
CAUTION
Remarks
To prevent a physical accident
caused by electric leakage, make
sure to check it.
To secure the physical safety and
stable arc, check those cables in
an appropriate manner according
to the conditions of shop floors.
Daily check: Quick and rough
check
Period check: Thorough check
If there is any defect, additional
fastening, hose replacement, etc.
are required.
OMCTT5621E18