Azbil ACN Series, Руководство пользователя

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8-1
Chapter 8. Instruction for Side Handwheel of Actuator
As you turn the handwheel clockwise, the actuator stem moves downward regardless of
whether the actuator is of the direct action type or reverse action type. The handwheel bears
the “SHUT” mark to indicate that the valve is closed as the handwheel is turned clockwise
and the “OPEN” mark to indicate that the valve is made open as the handwheel is turned
counterclockwise.
8-1. Installation procedure
To install the side handwheel, refer to Fig. 8-1 and procedure as follows:
Step Procedure
1 Prepare a manual operation kit (a side handwheel set and its mounting
accessories).
2 To install the handwheel, no machining or other physical processing on the
actuator is necessary.
3 By turning the handwheel, set the pointer of the operation nut to the AUTO
position.
4 Loosen the bolt (item number 6 as shown in Fig. 8-1) and widen the distance
between levers.
5 Install the handwheel on the mounting pad at the back of the actuator, with
the mounting-bolts.
6 Engage the holes at the end of two levers to the pointer boss and engage those
of the other ends to the boss of the operation nut, and then tighten the bolt.
7 When the control valve is in the automatic mode of operation, set the pointer
of the operation nut at to AUTO position and keep the handwheel locked.