6-4
100-214-276 Rev. 3
Chapter 6: Operation
Initial Actuator Settings
6.2.4 Actuator Alignment and Height (Horn travel)
The horn carriage will travel up and down on the actuator’s slides. The actuator can also be
adjusted up or down on the column. The distance between the fixture and horn should allow easy
and ready access and removal of your parts.
• Minimum stroke cannot be less than 1/8”.
• Maximum stroke cannot exceed 3-3/4” before part contact to allow for the operation of the
dynamic flow through mechanism.
Consistent weld results are best measured when the horn travel is more than 1/4 inch, because a
shorter distance can be affected by other components of the welding system and a suitable build-
up of pressure on the parts.
6.2.5 Mechanical Stop
The Mechanical Stop affects the amount of downward travel the Actuator is allowed to have, up
to the full stroke length of the unit. The multi-turn knurled knob to the right of the Stack, on the
bottom of the Actuator, is the Mechanical Stop adjustment. The Mechanical Stop has an indica-
tor on the right side of the Actuator, showing a scale of an arbitrary unit of measure.
The Mechanical Stop is designed to stop the Horn from contacting your Fixture in the event your
part is missing. It is not a precision measuring device, and it is usually
not recommended
that
this be used as a ‘collapse’ or other distance weld limiting device. The "missing part" function
can also be used to control critical horn to fixture distances.
Initially, set the mechanical stop to allow at least 1/4 inch of Horn travel, but any distance up to
the full stroke length is suitable.
To adjust the Mechanical Stop:
Step:
Action:
1
Activate the manual dump valve and manually lower the carriage until the
horn is just above the fixture.
2
If the horn does not reach the fixture and has not travelled 4 inches (100
mm), loosen the lock ring fully and turn the mechanical stop-adjusting knob
clockwise until the carriage reaches the desired position.
If the horn reaches the desired position before contacting the stop, turn the
adjusting knob counter-clockwise until the stop contacts the carriage.
3
Check the height of the horn and make any necessary adjustments to the
stop.
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