Samson 2780-1, Монтаж и эксплуатация, Страница: 4 / 52

Contents
4 EB 5840 EN
8 Servicing and conversion work ................................................................... 8-1
8.1 Periodic testing ........................................................................................... 8‑2
8.2 Preparation for servicing or conversion work ................................................. 8‑3
8.3 Mounting the actuator on the valve after servicing or conversion work ............ 8‑3
8.4 Service work ............................................................................................... 8‑3
8.4.1 Replacing the diaphragm ............................................................................ 8‑3
8.5 Conversion work ......................................................................................... 8‑5
8.5.1 Reversing the direction of action (fail‑safe action) .......................................... 8‑5
8.6 Ordering spare parts and operating supplies ................................................ 8‑6
9 Decommissioning ....................................................................................... 9-1
10 Removal .................................................................................................. 10-1
10.1 Removing the actuator from the valve ......................................................... 10‑2
10.2 Relieving the spring compression in the actuator .......................................... 10‑2
11 Repairs .................................................................................................... 11-1
11.1 Returning devices to SAMSON .................................................................. 11‑1
12 Disposal ................................................................................................... 12-1
13 Appendix ................................................................................................. 13-1
13.1 Tightening torques, lubricants and tools ...................................................... 13‑1
13.2 Spare parts .............................................................................................. 13‑1
13.3 After‑sales service ..................................................................................... 13‑4