Emerson FISHER 657 Instruction Manual

www.Fisher.comFisherr 657 Diaphragm Actuators Size 80 and 100ContentsIntroduction 1...Scope of Manual 1...

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 20101010. Tighten the remaining hex nuts in a clockwise, criss‐cross pattern to th

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 20101111. Remove seal bushing (key 111) and diaphragm casing cover O‐rings (keys 1

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201012CAUTIONOver‐tightening the diaphragm casing cap screws and nuts can damage th

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 2010136. Loosen the two set screws (key 41), and unscrew the two worm retainers (k

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201014The actuator should be equipped with a side‐mounted handwheel, which is desig

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201015Instructions are given below for complete disassembly and assembly. Perform t

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201016 WARNINGUse only genuine Fisher replacement parts. Components that are not s

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201017Figure 4. Size 80 Fisher 657 Actuator APPLY LUB40A8771‐B

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201018Figure 5. Size 100 Fisher 657 Actuator50A2621‐F APPLY LUB

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201019Key 6 Size 80 Actuator Spring, steelSIZECOMPRESSIONRATEMAXIMUMLOADPARTNUMBERC

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 20102Table 1. SpecificationsSPECIFICATIONSACTUATOR SIZE80 100Nominal Effective Diap

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201020Size 80 Side‐Mtd HandwheelKey Description Part Number  7  Travel Stop 17  Mac

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201021Figure 7. Size 80 Fisher 657 Actuator with Side‐Mounted Handwheel and Hydraul

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201022Figure 8. Top‐Mounted Handwheel for Size 100 Actuator APPLY LUB50A2622‐FAA

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201023

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201024Emerson Process Management Marshalltown, Iowa 50158 USASorocaba, 18087 Brazil

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 20103handwheel may be used as an auxiliary manual actuator. A side‐mounted handwhee

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201042. Screw valve stem locknuts (key 16, figure 4) all the way onto valve stem t

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 20105When adjusting travel of a reverse‐acting (push‐down‐to‐open) valve, apply a s

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 20106Figure 3. Dimension B for Spring AdjustmentLOWER DIAPHRAGM CASINGSPRING SEATJA

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 20107tools away from the spring and spring seat, slowly decrease loading pressure u

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 20108 WARNINGTo avoid personal injury from the precompressed spring force thrustin

Instruction ManualD100307X012657 Size 80 and 100 ActuatorsDecember 201093. Position the lower spring seat (key 11), and slide the actuator spring (ke