Indicators
Pressure Gauge
The pressure gauge shows the amount of air pressure ap-
plied to the upper portion of the air cylinder for the weld-
and-hold operation.
Stroke Position Indicator Flag
The stroke position indicator flag is not preset prior to
press operation. It moves with the slide assembly as the
assembly moves down and up.
Mechanical Stop Indicator Flag
This setting indicates where the downstroke will end.
Trigger Control
Setting the trigger control determines the amount of pre-
load or force on the part before turning on the ultrasonics.
(Numbers displayed are for reference only.)
A pressure switch in the slide assembly closes when a
specific amount of force applied to the horn is reached.
The trigger control adjusts the amount of force needed
to close that pressure switch. When the switch closes,
the ultrasound signal starts, and the horn begins to
vibrate.
See Figure 4-11 for trigger knob detail.
To make adjustments, grasp the inner knob, and turn it
to make adjustments. This knob can be turned as many
as nine revolutions. Each revolution advances the outer
dial one number in the direction the knob was turned. A
lever between the scales locks the control in position.
The numbers on the scale give the operator only a rela-
tive reading. A higher setting indicates more preload
force (on the part before the ultrasound signal is turned
on). A lower setting means less force.
Figure 4-11
Trigger Control Knob
0
1 2 3
4
5
6
7
8
0
1
2 3 4
5
6 7
8
9
Locking Lever
Continued from Page 41
Continued
Page 43
Dukane Manual Part No. 403-594-02
Section 4 - Controls
