Azbil ACN Series, Руководство пользователя

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7-4
7-1-1. Disassembly and assembly of top handwheel
To disassemble or assemble the top hadnwheel, refer to Fig. 7-1 through Fig. 7-6 and proceed
as described in this Chapter. For disassembly and assembly work, keep the actuator in the
vertical attitude.
(a) Direct action type
Step Procedure
1 Disconnect the air piping.
2 Set the handwheel shaft to the automatic operation position (fully raise the
handwheel shaft).
3 Remove the top diaphragm case. When doing this, loosen the pair of eyebolts
uniformly and alternately, after removing all other clamping- bolts of the
diaphragm case.
4 Sufficiently insert the handle shaft by turning it and then remove the
handwheel and the lock nut. Insert the shaft further and then remove the
screw shaft from the housing.
5 Remove the O-ring.
To assemble the top handwheel, follow the disassembly procedure in the reverse order.
(b) Reverse action type
Step Procedure
1 Disconnect the air piping.
2 Set the handwheel shaft to the automatic operation position (fully lower the
handwheel shaft).
3 Remove the handwheel and the lock nut. Insert the shaft into the housing by
uniformly and alternately, after removing all other clamping-bolt of the
diaphragm case.
4 Remove the top diaphragm case. When doing this, loosen the pair of eyebolts
uniformly and alternately, after removing all other clamping- bolts of the
diaphragm case.
5 Remove the housing by loosening its clamping-screws.
6 Remove the setscrew and then remove the bearing case.
7 Remove the pin and then remove the castle nut.
8 Remove the bearing retainer and then remove the bearing.
To assemble the top handwheel, follow the disassembly procedure in the reverse order.