User Manual

37
Initial problems diagnose
Abnormal Items
Area and Item to be Inspected
and Maintained
No arc Starting No Gas out No Wire Feeding Bad Arc Ignition Unstable Arc Dirt on Edge of Weld bead Wire Stick to material Wire Stick to Conductive Tip Blowhole Formed
Distribution Boxes (Input Protection
Devices)
 Turn on power supply or not?
 Fuse burnt out
 Connection joint loose
〇 〇 〇 〇 〇 〇
Input Cable
 Examine whether the cable is cut off.
 Connection joint loose
 Over heat
〇 〇 〇 〇
Welding Power Operation
 Turn on power supply or not?
 Phase Lacking
〇 〇 〇 〇 〇 〇 〇 〇
Gas Cylinder and Gas Regulator
 Turn on gas supply
 Residual Amount of Gas in the cylinder
 Set value for flow
 Connection joint loose
〇
〇
Gas supply hose (the whole line from the
high pressure cylinder to the weld gun)
 Connection joint loose
 Gas hose damaged
〇
Wire Feeding Device
 Wire feeding wheel does not match with the diameter of
wire in texturing tube
 Crackle on wire feeding wheel, groove blocked up or
defect
 Too tight or loose of the handle
 Wire powder accumulated on the inlet of SUS pipe
〇 〇 〇 〇 〇
Weld Gun and Cable
 1. Weld gun cable rolled up or over curved
 2. Adaptability of conductive tip, wire feeding pipe and
cable diameter Worn, blocked up or deformation, etc.
〇 〇 〇 〇
Body of weld gun
 Loose connection of conductive tip, nozzle and nozzle
contactor
 Contactor of weld gun body is not plunged in or tightened
well
〇
〇
Power supply cable of weld gun as well as
cable of switch control
 Break off (bending fatigue)
 Damaged by weighted drop
〇 〇 〇 〇 〇
Surface Condition of Parent material and
length that wire stretches out
 Oil, dirty, rust and paint residues
 Too long length of wire stretched out
〇 〇 〇 〇
〇
Output Cable
 Cross-section of cable that connects to parent material is
not enough
〇 〇 〇