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All the maintenance and testing must be carried out when the power supply is totally
cut off. Please make sure the power is off before opening the closure.
5.2 Daily checking
POWER SUPPLY
Position Checking keys Remarks
Control panel
Operation,conversion and installation of the switch
Check the state of the power indicator light
Lead to unstable arc and wire
sending
Cooling fan Check if the fan state and the sound is normal or not
Clean the residue and check the
reason and solve it
Power part
Check if there is abnormal liberation and sound when the
power is on
Check if there is smell when the power is on
Whether the outside color change or get warm
Outer parts
The connector is loosen
Whether the outer shell or other connect parts are loosen
CABLE
Position Checking keys Remarks
Output cable
Wearing-out of the cable insulated material
Cable connecting head naked (insulation
damage), or loosen (the end of power
supply, and cable of main material
connecting point)
For life security and stable cutting, adopt
suitable method to check according to
working place
Simple check daily
Careful and in-depth check on fixed period
Input cable
If the connection between the plug and the
power socket is firm
If the power input end cable fixed
If the input cable is worn out and bares the
conductor
In case of leakage and to ensure safety, please
do perform daily checking
Earth cable
If the earth cable that connects the main part is
broken and connects tightly
CUTTING TORCH
Position Checking keys Remarks
Switch
Press the torch switch, no gas comes out. Check switch.
Press the torch switch, arc cannot be
started.
Check switch.
Extend tip,
Electrode
Cutting power is reduced. Replace.
5.3 Cutting problems and resolution
The phenomenon listed below may happen due to relevant accessories used, cutting material, surroundings and power
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