Emerson-process-management FISHER 657 User Manual

www.Fisher.comFisherr 657 Diaphragm ActuatorSizes 30‐70 and 87ContentsIntroduction 1...Scope of Manual 1...

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201010Loading ConnectionThe loading pressure connections are made at the factory if t

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201011Actuator MaintenanceThis procedure describes how the actuator can be completely

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 2010126. Position the upper diaphragm casing (key 1) on the diaphragm (key 2) and al

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201013 WARNINGTo avoid personal injury from the precompressed spring force thrusting

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201014CAUTIONOver‐tightening the diaphragm casing cap screws and nuts (keys 22 and 23

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201015Assembly for Side‐Mounted Handwheel (Size 34‐60)1. Pack the ball bearings (key

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 2010166. Separate the halves of the stem connector assembly (key 26) by removing the

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 20101712. Put the spring seat and actuator spring (keys 11 and 6) into the yoke (key

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201018The casing‐mounted adjustable up travel stop (figures 14 or 15) limits the actu

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 2010192. Readjust the travel stop to obtain the appropriate restriction by following

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 20102Do not install, operate, or maintain a 657 actuator without being fully trained

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201020Figure 6. Fisher 657 Actuator Sizes 30 through 60 APPLY LUB40A8765-CFigure 7

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201021Figure 8. Fisher 657 Size 87 Actuator APPLY LUB50A8767-CParts ListNotePart n

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201022Key Description Part Number18 Travel Indicator Scale19 Nameplate, SST 12B6508X0

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201023Figure 9. Top‐Mounted Handwheel Assembly for Size30 through 60 Actuators APP

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201024Figure 12. Side‐Mounted Handwheel Assembly for Size 45 and 60 Actuators APPL

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201025Figure 13. Fisher 657 Size 70 and 87 Actuators with Side‐Mounted Handwheel A

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201026Figure 14. Casing‐Mounted Adjustable Up TravelStop for Sizes 30 through 60 Actu

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201027Figure 16. Casing‐Mounted Adjustable Down Travel Stop for Size 30 and 40 Actuat

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201028Key 6 Actuator SpringACTUATOR SIZEDIAPHRAGMPRESSURE RANGETRAVEL, mm (INCHES)Bar

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 20103NoteIf repeated or daily manual operation is expected, the actuator should be eq

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 20104Figure 3. Actuator Mounting Components for Size 30 through 70 ActuatorsVALVE STE

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 20105Figure 4. Bench Set AdjustmentSPRING ADJUSTERLOWER BENCH SETLOADING PRESSUREUPPE

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201061. Provide a vise or some other method of supporting the valve and the weight o

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201075. Calculate the actual friction force:FrictionForce, = 0.5poundsDifferencein p

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 201085. Slowly decrease the diaphragm loading pressure until the lower bench set pre

Instruction ManualD100306X012657 Actuator (30-70 and 87)December 20109matches the valve travel on the travel indicator plate. If valve travel is not c