Ⅰ.welding Power Supply; Ⅱ.welding Torch - Yeswelder MIG PRO-200 User Manual

hole. Clean the dust of some parts or replace it if necessary. To keep the original function of the machine,
please purchase the genuine spare parts only from
our company
Ⅰ.Welding Power Supply
Location
Front 1. Check the work state and installation of the switch.
Panel 2. Check and make sure the power-on indicator works
properly.
Cooling 1.Check whether the fan works properly or there is too
Fan much noise.
Power 1.Check the unusual vibration or bumming while working
Supply 2. Check the peculiar smell while working
3. Check the overheating trace like color change
Outer 1.Check the wear of the gas carrying hose and looseness of
Area connectors.
2.Check the looseness of the shelf and other fastened parts.
Ⅱ.Welding Torch
Location
1.Whether it is installed firmly or the front-end is
deformed
Nozzle
2.Whether it is attached with some splashes.
1. Whether it is installed firmly
Contact Tip
2.Damage of the end, wear or stuck of the bore.
1.Check the size of extrusion part
2.Check the consistence of the welding wire
diameter and inner diameter of contact tube.
Conductor Tube
3.Check the bending or extended parts.
Inspection Keypoints
Inspection Keypoints
Remark
Checking is needed if abnormal
noise or non-rotating is found.
Remark
It leads to bubbles.
It leads to burning of the welding
torch.(Application of anti-spattering agent is
recommended.)
Cause of the damage to the torch
thread
Cause of instable arc or breaking arc
Replace it when it is less than 6mm long.
Too short extrusion may cause instable
arc.(Make it a little longer than the regulated
length when replacing.)
The unsuitability of them may cause
unstable arc. Change it into a suitable tub.
Cause of bad wire-feeding or