MAWA-050A
9. Maintenance
9-1
9. Maintenance
WARNING
For maintenance inspection and cleaning, stop the electric supply and turn off the power
supply on the factory side except the case where no electric power is required. Put a notice
of “Under inspecting operation” for other workers. If the charging part is touched carelessly,
this may result in an electric shock.
(1) Pre-Start Inspection
The pre-start inspection will be described below.
Before starting welding daily, execute the following inspection.
(1) -1. Cable inspection
Check whether the following cables are securely connected and are not damaged. If any of them is
damaged, replace the damaged cable.
Torch cable
Grounding cable
Input cable
Other connection cables
- Input/output signal cable
- Data communication cable
(1) -2. Torch inspection
Check the end of the torch for abrasion. If it is worn away, polish it.
If the end of the torch is dirty, clean it.
(1) -3. Argon gas inspection
Tube inspection
Make sure that the argon gas tube is securely connected without causing any gas leakage. Check
whether the tube is not damaged. If the tube is damaged, replace it.
Flow rate inspection
Check whether the argon gas flow rate is 0.5 L/min or more. For this flow rate check, cause argon
gas to flow manually according to the following procedure.
1. When the Monitor screen is displayed on the touch panel display after the power supply is
turned on, press MENU in the upper right part of the screen.
The Menu screen will be displayed.
