CHAPTER 3: OPERATING INSTRUCTIONS
THIN-LINE
®
SERIES 180M WELD HEADS
3-6
990-133
Section III. Model 180MA
EZ-AIR Air-Actuated Head Setup
This Section describes the following adjustments for the Model 180MA-EZ:
Welding force
to the value required by the specific application.
Down speed
of the electrode approaching the parts.
Eliminating any
down stop
setting.
CAUTION:
Excessive force can damage the electrodes and/or the workpiece.
The Model 180MA-EZ air-actuated weld head is supplied with EZ-AIR
,
a pneumatic control that
actuates the electrodes and maintains a preset firing force. At a predetermined firing force, EZ-AIR
automatically closes the inlet and outlet valves to the weld head actuation cylinder and eliminates over-
force.
Down speed and welding force are the only two adjustments to be made when setting up the EZ-AIR.
Down stops are
not
required.
NOTE:
Before
performing the following instructions, get the separate EZ-AIR Operator Manual
supplied with the weld head and follow the detailed procedures for operating and adjusting EZ-AIR.
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
If electrodes are being used, adjust the
electrode spacing so that a Miyachi
Unitek Force Gauge fits between the
electrodes, as shown.
Depress and hold the footswitch. Note
the force indication on the force gauge.
When the head-firing switch "clicks"
(closes), the force will stabilize. If the
firing switch does not close, or the force
keeps increasing, verify that all of the
connections have been properly made as
described in the EZ-AIR manual.
3
Cycle the electrode up and down several times and adjust the down speed by turning the knob
that is located on the back of the EZ AIR. The down speed should be adjusted to provide a
comfortable speed for the operator or automation without excessive impact force to the parts.
4
The force gauge will indicate the electrode force. Use the force adjustment knob to increase the
indicated force if the initial force reading is less than the required force setting for the welding
application. If the initial force reading is greater than the required force setting, decrease the
indicated force.
Summary of Contents for THIN-LINE 180 M Series
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