Azbil ACN Series, Руководство пользователя

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8-2
8-2. Operating instructions
(1) To manually operate the actuator, remove the handwheel lock (the fork-shaped
component) which locks the handwheel and turn the handwheel in the direction
indicated by the corresponding arrowhead mark.
(2) To return to the automatic operation, turn the handwheel so that the pointer of the
operation nut is set AUTO position and then apply the handwheel lock.
Precautions: If you forcefully turn the handwheel after it has reached the mechanical stop
position, the valve stem may be damaged. Do not turn the handwheel with
forces larger than the below-mentioned limits.
Model HA2: 190 N {19 kgf}
Model HA3: 290 N {29 kgf}
Model HA4: 460 N {46 kgf}
(at the outmost periphery of the handwheel)
8-3. Disassembly and assembly of side handwheel
(Refer to Fig. 8-1)
Before starting disassembly, check that the pointer is set to the AUTO position.
Step Procedure
1 Loosen the bolt 6 which connects the levers 2 and then disengage the levers
from the pointer.
2 Undo the mounting-bolts 1 of the side handwheel unit and detach it from the
actuator.
3 Remove the lock nut of the handwheel and then remove the handwheel.
4 Loosen the bolt 8 of the bearing holder and then remove the feed shaft 7.
5 To assemble the side handwheel, refer to Fig. 8-1 and follow the disassembly
procedure in the reverse order.