CHAPTER 3: OPERATING INSTRUCTIONS
THIN-LINE
®
SERIES 180M WELD HEADS
3-4
990-133
Section II. Model 180MF Manually-Actuated Head Setup
This Section describes the following adjustments for the Model 180MF:
Firing force
to the value required by the specific application.
Maximum force
the electrodes can exert on the workpiece during the welding cycle.
Down stroke
limits.
Electrode Sticking
Insufficient Force
Wrong Electrode Material
Electrode Tip Shape
Dirty Electrodes
Poor Weldhead Follow-up
1
1
1
2
3
Increase force in steps of 10-20%
Check Electrode/Material Selection Guide
Use constant area electrodes or shape to
suit application
Clean electrodes and/or parts to be welded
Reduce mass of top electrode holder
assembly
***
Electrode Damage
Excess Current/Energy
Insufficient Force
Electrode Tip Shape
Excess Force
Wrong Electrode Material
Dirty Electrodes
1
1
1
2
2
2
Decrease current/energy in steps of 5-10%
Increase force in steps of 10-20%
Use constant area electrodes or shape to
suit application
Decrease force in steps of 10-20%
Check Electrode/Material Selection Guide
Clean electrodes and/or parts to be welded
*
Priority numbers refer to troubleshooting priority, with 1 as highest priority. Start
troubleshooting with 1 and then proceed to 2 and so on. When there are multiple causes
with the same priority, use personal judgement in determining which is more probable in the
specific application.
CAUTION:
Excessive force can damage the electrodes and/or the workpiece.
1
Use the force adjustment knob to set the
weld head force indicator to "4." The
indicator is located on the front of the
force tube just below the force
adjustment knob. Set heads with digital
readouts to "100."
2
Adjust the electrode spacing so that a
Miyachi Unitek Force Gauge fits
between the electrodes, as illustrated.
3
Depress and hold the footpedal. Note the
force indication on the force gauge when
the head firing switch "clicks." If the
firing switch closure is inaudible, it is
Summary of Contents for THIN-LINE 180 M Series
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