64 Chapter 4 Maintenance
Ehave Series Full Digital IGBT CO
2
/MAG/MMA Multifunctional Inverter Welder User Manual
Power Cables
Table 4-2 Daily inspection on power cables
Check whether the grounding cables are disconnected,
including the workpiece grounding cable and welder
grounding cable.
If an issue is detected, fasten or
replace components.
Check whether the insulation layer or other parts of the
cable are damaged and whether the conductor is
exposed.
Check whether the cable is extended by unexpected
external forces.
Check whether the workpiece power cable and the
workpiece are connected firmly.
To ensure safe and proper welding,
take appropriate measures to perform
inspection according to the site
situations.
Other Components
Table 4-3 Daily inspection on the other components
Follow the user manual of the welding torch to perform
daily inspection.
Follow the user manual of the wire feeder to perform
daily inspection.
Electrically-heated
CO
2
regulator
Follow the user manual of the electrically-heated CO
2
regulator to perform daily inspection.
Check whether the gas tube is connected firmly and
whether the soft clamps (if any) are loose.
Check whether the tube are damaged or leaky.
If an issue is detected, fasten or
replace the tube.
4.2 Regularly Inspection
Safety Warning
1. To ensure safety, regular inspection must be performed by certified personnel.
2. It can be performed only after the power supplies of the distribution box and the welder are turned off,
so as to prevent injuries such as electric shocks and burns.
3. It can only be performed 5 minutes after the welder is powered off because of capacitor discharge.
Operation Notes:
1. To prevent static electricity from damaging semiconductors and PCBs, take ESD measures
or touch the metal parts of the housing with your hand to discharge static electricity before
touching the conductors of internal cables and the PCBs of the welder.
2. Do not use the solution other than neutral detergents for household use to clean the plastic
parts.
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