Emhart Teknologies - 50 Shelton Technology Center, Shelton CT 06484 - Tel. (203) 924-9341 - Fax (800) 225-5614 Page 17
Setting Tool Stroke
•
Adjust the stroke of the tool according to insert size and thickness of work piece as indicated in
the instructions below.
•
Test 5 pieces before beginning production work to ensure proper setting of the POP NUT™.
•
Proper setting stroke is critical:
o
Insufficient setting stroke results in insufficient clamping of the insert, leading to a Spin
Out failure in the application
o
Too much setting stroke results in possible insert threads stripping and Mandrel damage
Stroke Adjustment
1. Loosen the M3 Lock Screw on the Control Nut using a 1.5mm Hex Wrench.
2. Set Stroke to the value of “E” as determined by the stroke formula below or from the POP NUT
charts.
3. Adjust the stroke by turning the Control Knob (
¼
turn ~ 0.2mm)
a. Clockwise to decrease stroke
b. Counter-clockwise to increase stroke
4. Tighten the Lock Screw
5. Set a POP NUT and measure the “E” dimension.
6. Adjust the stroke to “E” +/-0.1mm
7. Set a POP NUT in a test piece with the desired thickness
and verify that the stroke is between S
Min
and S
Max
.
8. Re-adjust stroke as necessary.
IF…
THEN…
E
(Measured)
< E
(Formula)
Increase stroke – See “
Stroke Adjustment
”
E
(Measured)
> E
(Formula)
Check POP NUT threads and Mandrel for damage
Reduce stroke – See “
Stroke Adjustment
”
S
Min (Measured)
< S
Min (Formula)
Increase stroke – See “
Stroke Adjustment
”
S
Max (Measured)
> S
Max (Formula)
Check POP NUT threads and Mandrel for damage
Reduce stroke – See “
Stroke Adjustment
”
Lock Screw
Control Knob
Line
up
right edge
of Control Nut
Control Nut
Stroke Scale
