Masoneilan 51/52/53 Series Cylinder Actuator | 29
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8. Ensure the positions of the air connections are correct. Insert the Center Bolts into the holes of the Top Plate
and Yoke. Mount the Spring Washers and Nuts and tighten them lightly by hand. Mount the Spring Washers and
Nuts to the bottom side of the Yoke by hand. Ensure that the position of Center Bolts (Approxi25 mm
longer than others) for the accessory mounting plate, if equipped, complies with Figure 13.
9. Align the holes of the Top Plate with the Yoke so that the Center Bolts are set vertically.
10. Ensure balanced tightening of the Center Bolts by tightening the Nuts in diagonal pairs gradually to a torque of
70.0 ± 5 N-m (52.0 ± 4 ft-lbs).
Figure 13 - Center Bolt Positioning
