Emhart Teknologies - 50 Shelton Technology Center, Shelton CT 06484 - Tel. (203) 924-9341 - Fax (800) 225-5614
Page 9
Figure 4-3
Figure 5-1
Work piece thickness
Maximum strok
e (
Ｓ
Ma
x
)
Lock screw
(Never Loosen)
Lock screw
(Use 1.5mm hex)
Edge of control nut
Scale
Control knob
Control nut
Figure 5-2
Stroke Adjustment
•
Adjust the stroke length according to POP Nut size and the thickness of work piece.
•
Make sure the tool has a consistent and adequate air supply.
•
Note: The stoke may increase or decrease due to changes in air pressure [~0.1 mm (0.004
in) per 0.1 MPa (15 psi)]
PROCEDURE
1. Determine required stroke
Find Maximum Stroke (S
max
), Minimum Stroke (S
min
)
and Stroke (E), based on the POP Nut and work piece
thickness from Table 5-5 "POP Nut Stroke Formulas”
and Table 5-6 “S max vs. t Graph.”
Example:
POP Nut: SPH625
Work piece thickness: 1.5mm
S max = 3.4 from formula or graph
S min = 3.0 (S max
−
0.4.) from formula
E = 3.6 (S
max
+ 0.2) from formula
Proper stroke: 3.0 ~ 3.4 (S
min
~ S
max
)
2. Stroke
Adjustment
a)
Loosen the M3 lock screw on the control
nut using a 1.5mm hexagonal wrench. Adjust
stroke by turning control knob clockwise to
decrease and anti-clockwise to increase stroke.
Stroke, E is indicated by the right edge of
control nut. Tighten the lock screw (Figure 5-2).
Note:
Never
loosen the lock screw on the
control knob, as this will disturb the stroke.
b)
Set a POP Nut and measure the stroke
with calipers etc. to check the stroke setting
‘E’.
Re-adjust the stroke according to (a) so that
the stroke is E ± 0.1mm. (Figure 5-3).
Note: Using the control knob, adjustments equal to
0.2mm per quarter turn can be made.
c)
Set a POP Nut using work piece or the test piece,
and check that the stroke is between S
min
and S
max
.
Re-adjust the stroke as necessary. (Figure 5-4)
Stroke S
min
~ S
max
.
Stroke ‘E’
Figure 5-4
Figure 5-3
