Rectifying Faults; Customer Checklist - EWM Taurus 301 KGE Operating Instructions Manual

Rectifying faults

Customer checklist

7 Rectifying faults
All machines are subject to rigorous production checks and final checks. If despite this, anything fails to
work at any time, please check the machine using the following chart. If none of the fault rectification
procedures described leads to the correct functioning of the machine, please inform your authorised
dealer.
7.1 Customer checklist
Error
No wire feed
Loop in wire
Wire feed irregular
Weld seam porous
Machine will not switch
on
Strong spatter
No welding current
Wire feed or gas valve
faulty
Unstable arc, heavy
"flickering".
80
Possible cause
Spatter has blocked the
contact nozzle
Feed roller is slipping
Wire feed motor is not turning
over
Wire bent
Wire coil brake too strong
Torch defective
Core or nozzle blocked
Tube package bent too much
Wire feed coils blocked or
damaged
Wire coil brake too strong
Contact nozzle too small
Incorrect shielding gas setting
Gas cylinder empty
Electrode is projecting too far
forwards
Air current
Poor wire quality
Very dirty workpiece
Local overheating of the
workpiece
Gas line is drawing in air
No mains voltage
Power source faulty
Blow effect
No gas
Workpiece line has no or poor
contact
Power source overheating
Electronic control
Interference within the welding
current cable
Remedy
Clean nozzle, spray on separating agent
Check contact pressure roller. Check for
wear and tear and replace if necessary
Check automatic cut-out on the wire feed
motor
Unfasten contact nozzle, cut off wire after
bent section
Set coil brake correctly
Replace
Clean, replace if necessary
Stretch out tube package
Clean, replace if necessary
Set coil brake correctly
Check, replace if necessary
Correct: Rule of thumb "Wire diameter *10 =
flow in l/min"
Change
Move torch closer to weld seam
Shield welding area
Use high quality wire, store in a dry and
clean location.
Clean workpiece first
Include occasional pauses in welding to
allow the workpiece to cool down.
Check seal tightness on lines, seal / replace
if necessary.
Check the mains fuses, replace as
necessary
Contact service
Connect workpiece line more appropriately
Set gas quantity to match the application
Check connection
Allow machine to cool down
Check line connections, replace electronics
if necessary. Contact service
Fully unroll welding current cables, torch
tube packages and, if applicable,
intermediate tube packages. Avoid loops!
099-005033-EW501
15.01.2010