Tomoe T-DYNAMO 7E, Instruction Manual, Page: 17 / 32

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4-3 Adjustment of valve position
<Full-close position adjustment procedure
(Full-close side adjustment)>
(1) Set position to open on this product. Check that
the position indicator ㉑ indicates O (Open).
(2) Remove the air pipelines and set inside pressure
to atmosphere.
(3) Release the hexagon nut .
(4) Use a hexagonal wrench to rotate the hexagon
stop screw to the required angle. The hexagon
stop screw is rotated clockwise, and the valve
full-close position becomes shallow. Please refer
to [Table 1] for rotation angles.
Hexagon stop screw
Hexagon stop screw
Seal washer
Position indicator ㉑
Opening adjustment bolt Closing adjustment bolt
Single-acting type cylinder (7F)
For pressure-closing single-acting type cylinders
(7F), the opening adjustment position is different
from this figure. Perform the full opening side
adjustment by adjusting the bolt at the [OPEN]
side of the base plate. The tightening torque
should be the torque of "Closing side stopper bolt"
in [Table 2] for both the open and close sides.
Do not release the hexagon nut and the hexa-
gon stop screw to prevent danger. [Fig. 4]
Table 2 Stopper bolt tightening torque
Hexagon nut
Hexagon stop screw
Type
T35
T85 T200 T380 T750
Model no. T85S T200S T380S T750S
Close side 7E
•
7G
•
7F 2 1.3 1 0.9 0.6
Open side
7E
•
7G 2.6 1.9 1.7 1.6 1.5
7F 2 1.3 1 0.9 0.6
<Full-open position adjustment procedure
(Full-open side adjustment)>
(1) Set position to close on this product. Check that
the position indicator ㉑ indicates Close.
(2) Remove the air pipelines and set inside pressure
of the product to atmosphere.
(3) Release the hexagon nut . [Fig. 3]
(4) In case of deformation or breakage of the seal
washer , replace it with a new seal washer.
Otherwise, air leakage may occur.
(5) Use a hexagonal wrench to rotate the hexagon
stop screw to the required angle. The hexagon
stop screw is rotated clockwise, and the valve
full-open position becomes shallow. Please refer
to [Table 1] for rotation angles.
<How to restore after adjustment>
(1) Hold the hexagon stop screw or in position
with a hexagonal wrench, and tighten the hexagon
nut or with a spanner. Please refer to [Table
2] for the tightening torque.
(2) Apply air pressure to the cylinder and check that
the rotation angle of the output shaft is obtained,
and there is no air leakage.
(3) If readjustment is required, repeat the above
procedure from (1).
Note) Full-close/full-open position is adjusted when
shipped.
Open-side stopper bolt Close-side stopper bolt
Type
Bolt Torque Bolt Torque
T35 M8 20 Nm M8 20 Nm
T85
•
T85S M8 20 Nm M10 35 Nm
T200
•
T200S M10 35 Nm M12 53 Nm
T380
•
T380S M12 38 Nm M16 115 Nm
T750
•
T750S M16 115 Nm M20 200 Nm
[Fig. 3]
[Fig. 4]
Double-acting type cylinder (7E)
Single-acting type cylinder (7G)
Closing angle adjustment
hexagon nut
Opening angle
adjustment
hexagon nut
CAUTION
Table 1 Shaft rotation angle given by one turn of the stopper bolt (degrees)