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Instruction Manual

D101329X012

1078 Actuator

June 2017

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Figure 3. Fisher 1078 Declutchable Manual Actuator, Sizes 2A, 1A, B, C, and D

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Figure 4. Fisher 1078 Declutchable Manual Actuator, Size II‐FA

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Summary of Contents for Fisher 1078

Page 1: ...ors 10 Figure 1 Fisher 1078 Manual Actuator Mounted on a 2052 Size 1 Actuator X0178 Introduction Scope of Manual This instruction manual includes installation operation and maintenance information for the Fisher 1078 declutchable manual actuator figure 1 Refer to separate instruction manuals for instructions covering the power actuator and control valve Do not install operate or maintain a 1078 de...

Page 2: ... 68 80 and 100 1 handwheel down std or handwheel right hand or left hand mount optional 2052 sizes 1 2 and 3 1 handwheel down std or handwheel right hand or left hand mount optional Approximate Weights without Handwheel Size AAA 2 7 kg 6 lb Size AA 6 8 kg 15 lb Size A 9 5 kg 21 lb Size 2A 13 6 kg 30 lb Size 1A 15 9 kg 35 lb Size B 23 1 kg 51 lb Size C 29 9 kg 66 lb Size D 63 5 kg 140 lb Size II FA...

Page 3: ...ations are given in table 1 Specifications for a control valve assembly as it comes from the factory appear on a nameplate attached to the power actuator Educational Services For information on available courses for Fisher 1078 manual actuators as well as a variety of other products contact Emerson Automation Solutions Educational Services Registration Phone 1 641 754 3771 or 1 800 338 8158 E mail...

Page 4: ...034 18000 424 93 Table 3 Fisher 1052 Actuator Size Selection and Specifications for Sizes 2A 1A B and C MANUAL ACTUATOR SIZE max output torque SHAFT SIZE POWER ACTUATOR 1 GEAR RATIO HANDWHEEL DIAMETER MAXIMUM TORQUE 2 WHEEL RIM FORCE HANDWHEEL TURNS FOR ROTATION For Maximum Torque For Less Than Maximum Torque Degrees mm Inch Type Size mm Inch NSm LbfSin N Pounds N Pounds 60 90 1A 8200 in lbs 31 8 ...

Page 5: ...10 24 1109 9815 308 68 Divide NSm req d by 3 6 Divide lbfSin req d by 144 6 7 10 38 1 44 4 50 8 1 1 2 1 3 4 2 1356 12 000 377 83 C 18 000 in lbs 31 8 1 1 4 1061 40 60 68 54 1 610 24 1109 9815 231 51 Divide NSm req d by 4 8 Divide lbfSin req d by 194 9 13 5 44 4 50 8 1 3 4 2 2034 18 000 424 93 D 30 000 in lbs 44 4 50 8 1 3 4 2 1061 80 100 64 1 762 30 2658 23 524 369 82 Divide NSm req d by 7 2 Divid...

Page 6: ...rol signal to the power actuator Be sure the actuator cannot suddenly open or close the valve D Use bypass valves or completely shut off the process to isolate the valve from process pressure Relieve process pressure on both sides of the valve Drain the process media from both sides of the valve D Vent the power actuator loading pressure and relieve any actuator spring precompression D Use lock ou...

Page 7: ... the lever is then clamped onto the splined adaptor See figure 5 1 Remove the lever and add a new lever and splined adaptor when needed See figure 5 The splined adaptor slides inside the new lever and the lever is then clamped onto the splined adaptor 2 Disengage the manual actuator 3 Install the manual actuator 4 Tighten the cap screws to the final torque value 5 For double acting power actuators...

Page 8: ...ing lever moves freely without use of excessive force If after releasing the detent mechanism the lever does not move freely toward the disengaged position some system force is causing an imbalance A forced return to automatic operation under these conditions can cause serious damage to the equipment and violent disturbance of the process 2 If possible determine whether the automatic control syste...

Page 9: ...des of the valve Drain the process media from both sides of the valve D Vent the power actuator loading pressure and relieve any actuator spring precompression D Use lock out procedures to be sure that the above measures stay in effect while you work on the equipment D The valve packing box may contain process fluids that are pressurized even when the valve has been removed from the pipeline Proce...

Page 10: ...alve because they may void your warranty might adversely affect the performance of the valve and could cause personal injury and property damage Parts List Note Contact your Emerson sales office or Local Business Partner for Part Ordering information Manual Actuator Assembly figures 3 and 4 Key Description 1 Actuator 2 Handwheel 3 Pin steel Note A new lever and splined adaptor figure 5 are needed ...

Page 11: ...Instruction Manual D101329X012 1078 Actuator June 2017 11 Figure 3 Fisher 1078 Declutchable Manual Actuator Sizes 2A 1A B C and D 1 2 3 Figure 4 Fisher 1078 Declutchable Manual Actuator Size II FA 1 2 3 ...

Page 12: ...se or applicability All sales are governed by our terms and conditions which are available upon request We reserve the right to modify or improve the designs or specifications of such products at any time without notice E 1986 2017 Fisher Controls International LLC All rights reserved Fisher and FIELDVUE are marks owned by one of the companies in the Emerson Automation Solutions business unit of E...

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