50
Installation, Commissioning and Maintenance Manual
16.0 Periodic Maintenance
PM-LP-006b
Page: 10/10
Component:
Single-acting actuator
Task:
LP type 1 and type 2 pneumatic cylinder seals replacement
Equipment, Tools, Materials:
Spare seals
Wrench
Lifting tools
Project documentation
Warnings:
Preliminary Operations:
INSTRUCTION VALID FOR SPRING UP ONLY
41. Replace cylinder tube (9) using suitable lifting tools
42. Replace end flange (7) with O-ring (8)
43. Fasten nuts (6) and blind nuts (16)
16
6
8
9
7
INSTRUCTION VALID FOR BOTH SPRING DOWN AND SPRING UP
44. With the help of a wench, screw the stop bolt (3) into the
cylinder flange until length W is achieved
45. Insert the O-ring (2) and, holding the stop bolt (3) with a
wrench, tighten the stop nut (1)
Please refer to page 18 of the present document for the instructions
to regulate the stop bolt position.
3
INSTRUCTION VALID FOR BOTH SPRING DOWN AND SPRING UP
46. Assemble the control panel, if any, on the central body
47. The actuator must be tested before it is assembled on the valve
48. Place the actuator in a stable position, e.g. on a workbench
49. Connect the pneumatic supply to the actuator and cycle the actuator several times, verify smooth functioning and absence of leakages
50. Check painted parts, if necessary repaint them in accordance with the applicable painting specifications
51. The actuator is now ready to be assembled on the valve
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Summary of Contents for LP/S Series
Page 89: ...Keeping the World Flowing 89...
