CHAPTER 3: OPERATING INSTRUCTIONS
THIN-LINE
®
SERIES 180M WELD HEADS
3-2
990-133
Troubleshooting
WELDHEAD TROUBLESHOOTING GUIDE
SYMPTOM
OR
PROBLEM
PRIMARY CAUSE
Weldhead-Related Cause
PRIORITY*
SOLUTION
Overheating of
Weldment
Excess Welding Time
Insufficient Force
Wrong Electrode Material
Dirty Electrodes
Electrode Tip Shape
1
2
2
3
3
Decrease Welding Time (A.C. Welding)
Increase force in steps of 10-20%
Check Electrode/Material Selection Guide
Clean electrodes and/or parts to be welded
Use constant area electrodes or shape to
suit application
Discoloration
Excess Welding Time
Wrong Electrode Material
Insufficient Force
1
1
2
Decrease Welding Time (A.C. Welding)
Check Electrode/Material Selection Guide
Increase force in steps of 10-20%
Weak Weld
Insufficient Current/Energy
Dirty Electrodes
Electrode Tip Shape
Mushroomed Electrodes
Excess Force
Insufficient Force
Wrong Electrode Material
Poor Weldhead Follow-up
1
1
1
1
2
2
2
3
Increase current/energy in steps of 5-10%
Clean electrodes and/or parts to be welded
Use constant area electrodes or shape to
suit application
Replace or reshape electrodes or increase
cleaning schedule
Decrease force in steps of 10-20%
Increase force in steps of 10-20%
Check Electrode/Material Selection Guide
Reduce mass of top electrode holder
assembly
Insufficient Nugget **
Insufficient Current/Energy
Wrong Electrode Material
Electrode Tip Shape
Mushroomed Electrodes
Dirty Electrodes
Excess Force
Insufficient Force
1
1
1
1
2
2
3
Increase current/energy in steps of 5-10%
Check Electrode/Material Selection Guide
Use constant area electrodes or shape to
suit application
Replace or reshape electrodes or increase
cleaning schedule
Clean electrodes and/or parts to be welded
Decrease force in steps of 10-20%
Increase force in steps of 10-20%
Metal Expulsion
Excess Current/Energy
Insufficient Force
Poor Weldhead Follow-up
Dirty Electrodes
Electrode Tip Shape
1
1
1
2
2
Decrease current/energy in steps of 5-10%
Increase force in steps of 10-20%
Reduce mass of top electrode holder
assembly
***
Clean electrodes and/or parts to be welded
Use constant area electrodes or shape to
suit application
Summary of Contents for THIN-LINE 180 M Series
Page 1: ...990 133 REV F WELD HEAD THINLINE 180 M SERIES OPERATION MANUAL ...
Page 34: ......
Page 38: ......
Page 42: ......