14
(8)
If the air switch on rear panel trips when the machine has worked with large
current for a long time, operator should power off the switch, then start the
machine in 5 minutes. Remember before starting the machine, turn on the air
switch on the rear panel, power on the switch box. The machine will be ready after
running under open load for several minutes.
(9)
Be sure to turn off argon and water as well as power source when finish welding.
2. Periodic inspection and maintenance
(1)
Removes dust from power resource with pressure air by authorized maintainer
every 3-6 months. Check if the bolt is loose.
(2)
Check frequently if control cables are worn out, adjusting knobs are loose, and
components of panel are damaged.
(3)
Check output cable periodically, if jointers are loose or plugs are distortion, please
repair in time, otherwise the sockets will burn out.
(4)
Clear up or change contact tips and tungsten electrodes timely.
3.
Trouble shooting
3.1. Checking procedure prior to maintenance
(1)
Check if the panel switches and potentiometers are on the proper position
(2)
Check if the input volt has phase missing, and range are between 340-420V.
(3)
Check if the input cable connects correctly and firmly with the power source.
(4)
Check if the welding cables connect correctly and firmly.
(5)
Check if water circulation and CO2 flows out smoothly.
Warning:
Don’t open up case uninstructed, the max volt inside machine is 600V. Take safe
precautions to prevent from being electric shocked while in maintenance.
Never discharge high voltage to welder case with welding torch! Shut down power
source before changing or repairing welding cable or torch
