voestalpine Bohler Welding TERRA 180 Manuel D'instructions page 22

3.3 Rear panel
1 Power supply cable
Connects the system to the mains.
2 Off/On switch
Turns on the electric power to the welder.
It has two positions, "O" off, and "I" on.
3.4 Sockets panel
1 Negative power socket
For connection of earth cable in electrode welding or of
torch in TIG.
2 Positive power socket
For connection of electrode torch in MMA or earth
cable in TIG.
22
4 MAINTENANCE
Routine maintenance must be carried out on the
system according to the manufacturer's instruc-
tions.
Any maintenance operation must be performed by qualified
personnel only.
When the equipment is working, all the access and operating
doors and covers must be closed and locked.
Unauthorized changes to the system are strictly forbidden.
Prevent conductive dust from accumulating near the louvers
and over them.
Disconnect the power supply before every opera-
tion!
Carry out the following periodic checks on the
power source:
- Clean the power source inside by means of low-
pressure compressed air and soft bristle brushes.
- Check the electric connections and all the con-
nection cables.
For the maintenance or replacement of torch components,
electrode holders and/or earth cables:
Check the temperature of the component and
make sure that they are not overheated.
Always use gloves in compliance with the safety
standards.
Use suitable wrenches and tools.
Failure to carry out the above maintenance will invalidate all
warranties and exempt the manufacturer from any liability.