Emerson Process Management FISHER 657 - Manual

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Fisher
r 657 Diaphragm Actuator
Sizes 30‐70 and 87
Contents
Introduction 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting the Actuator on the Valve 5 . . . . . . . . . . . .
Discussion of Bench Set 6 . . . . . . . . . . . . . . . . . . . . . . .
Spring Verification 7 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Stem Connector Assembly 8 . . . . . . . . .
Deadband Measurement 8 . . . . . . . . . . . . . . . . . . . . . .
Loading Connection 10 . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuator Maintenance 11 . . . . . . . . . . . . . . . . . . . . . . .
Top‐Mounted Handwheel Assembly 12 . . . . . . . . . . .
Side‐Mounted Handwheel for Sizes 34
through 60 Actuators 14 . . . . . . . . . . . . . . . . . . . . .
Side‐Mounted Handwheel for Sizes 70
and 87 Actuators 15 . . . . . . . . . . . . . . . . . . . . . . . . .
Casing‐Mounted Adjustable Travel Stops 17 . . . . . . .
Parts Ordering 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Kits 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Kits for Side‐Mounted Handwheels 19 . . . . . . . . . . . . .
Kits for Top‐Mounted Handwheels 19 . . . . . . . . . . . . .
Parts List 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuator Assembly (figures 6, 7, or 8) 21 . . . . . . . . . .
Top‐Mounted Handwheel (figures 9 or 10) 22 . . . . . .
Side‐Mounted Handwheel (figure 11 or 13) 22 . . . . . .
Figure 1. Fisher 657 or 657‐4 Actuator Mounted
on an easy‐e™ Valve
W2174‐2
Casing‐Mounted Adjustable Up Travel Stops
(figures 14 or 15) 26 . . . . . . . . . . . . . . . . . . . . . . . . .
Casing‐Mounted Adjustable Down Travel Stops
(figure 16) 27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
Scope of Manual
This instruction manual provides information on installation, adjustment, maintenance, and parts ordering for the
Fisher 657 actuator in sizes 30 through 70 and size 87. The 657‐4 actuator in sizes 70 and 87 is also covered. Refer to
separate instruction manuals for information about the valve positioner and other accessories used with these
actuators.
Instruction Manual
D100306X012
657 Actuator (30-70 and 87)
December 2010