Page 5 of 8
7 Assembling
7.1 Assembling mod. 0270
CAUTION: It is recommended to use suitable safety equipment during the handling for maintenance because of heavy
and/or bulky parts.
1. Before assembling clean all components preferably with degreaser.
2. Place the pinion ( 2 ) on a support with a square of the same size of the female attachment. Make sure that the pinion is
provided with lower O-ring ( 3 ), spacer ( 5 ) and upper O-ring ( 4 ). Lubricate the O-rings (see arrows fig. 19). The
recommended lubricating grease is “KLUBER” TRIBO STAR 1EP“
3. Lay the cylinder ( 1 ) down on the pinion ( 2 ), see fig. 20.
4. Fit on the pinion ( 2 ) the spacer ( 17 ), the washer ( 18 ), the snap ring ( 19 ), see Fig. 21.
5. Remove the cylinder with pinion from the support and lay it on one base to mount the plate ( 7 ) with anti-friction ring ( 6 )
(holes for adjusting screws on the same side as the NAMUR attachments), then screw down the fastening screws (11 ) with
washer ( 8 ) in crossed sequence, see fig. 22, and place the cylinder on the support again.
6. Grease the internal chamber of the cylinder ( 1 ) and both pistons ( 12 ) provided with O-ring ( 20 ), antifriction ring ( 21 ),
anti-blowout key ( 24 ), and thrust block ( 16 ). The recommended lubricating grease is “KLUBER” TRIBO STAR 1EP“.
7. Rotate the Cylinder ( 1 ) by approx.. 50° to the upper slot of the pinion, see fig. 23.
8. For the standard execution (clockwise rotation opens) press the pistons ( 12 ) into the cylinder ( 1 ) while turning the
cylinder ( 1 ) in counterclockwise direction ( top view) until the pistons come into contact, see fig. 23, 24 ;
8. Introduce the adjustment screws ( 10 ) with nuts ( 9 ) into the plate ( 7 ) and adjust the travel stop, see fig. 25 and
paragraph 8;
9. For DOUBLE ACTING ACTUATOR: Mount the end cap ( 15 ) with O-ring ( 22 ) and gasket ( 23 ) on the cylinder and
screw down in crossed sequence the screws ( 14 ), see fig. 26. Repeat the operation on the opposite side.
For SPRING RETURN ACTUATOR: Introduce the spring sets into the cylinder ( 1 ) and center them in the appropriate
pockets of the piston ( 12 ), then mount the end caps ( 15 ) with O-ring ( 22 ) and gaskets ( 23 ) Note: the pistons have to
be in CLOSED position. Screw partially down the screws ( 14 ) in crossed sequence compressing the springs uniformly
until the cap is completely closed, see fig. 26. Repeat the operation on the opposite side;
10. Execute some test cycles to check the correct functioning of the actuator before installing it.
