6 B 72 en Table of Contents GENERAL .............. 3 SAFETY PRECAUTIONS ........3 B1C actuators, sizes 9 to 25 ........ 3 B1C_K/L/R actuator ..........3 Maintenance ............3 Valve close and open position adjustment ..4 B1C actuators, sizes 32 to 50 ......4 B1C_RK/RL/RR actuator ........
6 B 72 en GENERAL NOTE: These manual hand wheel operators are designed for There is some air bleed trough the spindle thread when Metso B1C-actuators. Hand wheel operator is intended to the spindle (50a) with the O-ring (54a) is positioned inside be used for operating the pneumatic actuator in case of the cylinder.
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6 B 72 en B1C actuators, sizes 32 to 75 B1C_RK/RL/RR actuator The B1C_RK actuator is otherwise like the B1C except that it can be operated manually to bring the piston to lower position in case there is no air supply. The B1C actuator can be changed into a B1C_RK by replac- ing the cylinder end (44) accordingly and adding parts (306…330), see Fig.
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6 B 72 en Maintenance Valve close and open position adjustment CAUTION: In the B1C_RK actuator, the close position limit of valve is Air pressure must always be released before operating adjusted with the handwheel (309), secured with screw or servicing manual hand wheel operator! (319) and locked with the hex nut (320).
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6 B 72 en Metso Flow Control Inc. Europe, Vanha Porvoontie 229, P.O. Box 304, FI-01301 Vantaa, Finland. Tel. +358 20 483 150. Fax +358 20 483 151 North America, 44 Bowditch Drive, P.O. Box 8044, Shrewsbury, M A 01545, USA. Tel. +1 508 852 0200. Fax +1 508 852 8172 South America, Av.