Pro-Tec Welding PRO-TEC 215 MP Operating Manual page 31

Description
8. Welding Wire bird nest.
9. Burnt Back onto the contact tip.
10. Erratic Wire Feeding or Welding Arc
11. Irregular weld bead shape.
12. Weld metal cracking.
13. Cold weld puddle.
© 2018 Global Welding LLC
TROUBLESHOOTING and MAINTENANCE
Possible Cause
A Excessive Drive Roll pressure
B Incorrect or blocked Liner.
C Incorrect contact tip size or contact tip
overheating.
D MIG Gun cable kinked.
A Burn Back control is not set correctly.
B Improper stick out.
C Erratic wire feed.
D Incorrect or blocked liner.
E Contact tip overheating.
F MIG Gun cable kinked.
A Excessive Drive Roll pressure.
B Incorrect Drive Roll size.
C Worn Drive Roll.
D Incorrect or blocked liner
E Gaps at liner/contact tip junction or wire
guide junctions.
F Incorrect or worn contact tip size or
contact tip overheating.
G Spatter adhesion on end of contact tip.
H MIG Gun cable kinked.
I Poor Ground Clamp or cable connec-
tions.
J Weld joint area dirty.
A Incorrect Voltage and Wirefeed Speed
settings.
B Wire is wandering.
C Incorrect shielding gas.
D Insufficient or excessive heat input into
weld puddle.
A Weld beads too small.
B Weld penetration narrow and deep.
C Excessive weld stresses.
D Excessive Voltage.
E Weld metal cooling rate too fast.
A Loose welding cable connection.
Page
31
Remedy
A Decrease pressure on the Drive Roll by turn-
ing Pres-sure Device counter clockwise.
B Replace Liner to suit Welding Wire.
C Replace contact tip to suit Welding Wire.
D Straighten out MIG Gun cable.
A Adjust the Burn Back control.
B Increase Stick-Out length to 3/8"-1/2".
C See No. 10 Erratic Wire Feeding or Welding
Arc.
D Replace the Liner to suit the Welding Wire.
E Replace contact tip.
F Straighten out MIG Gun cable.
A Decrease pressure on the Drive Roll by turn-
ing Pres-sure Device counter clockwise.
B Fit a suit size and type of Drive Roll that suits
the welding wire.
C Replace the Drive Roll that suits the welding
wire.
D Replace the Liner to suit the Welding Wire.
E Reduce the gaps at liner/contact tip junction
or wire guide junctions.
F Replace contact tip to suit Welding Wire.
G Replace contact tip to suit Welding Wire.
H Straighten out MIG Gun cable.
I Inspect Ground Clamp/cable connections for
discoloration or damage then repair/replace.
J Clean joint before welding.
A Adjust Voltage and Wirefeed Speed by ad-
justing the Voltage control and the Wirefeed
control.
B Replace contact tip to suit Welding Wire.
C Check that you have welding grade correct
shielding gas.
D Change Wirefeed Speed and/or change
Voltage or change MIG Gun travel speed.
A Decrease MIG Gun travel speed.
B Reduce Wirefeed Speed / Voltage and in-
crease MIG Gun travel speed or select a
lower penetration shielding gas.
C Change weld joint design.
D Decrease Voltage.
E Slow cooling rate by preheating base metal.
A Check all welding leads electrical connec-
tions for defects like burnt or discoloration
connections. Replace/replace electrical con-
nections or welding leads.
Operating Manual No: PWOM-215/250MP-001