Fisher 655 Instruction Manual

Instruction Manual
Form 1292
October 1997
Types 655 and 655R Actuators
for Self-Operated Control
Contents
Introduction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuator Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading Connections . . . . . . . . . . . . . . . . . . . . . . . . .
Startup
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Startup for Pressure-Reducing Service
Startup for Pressure-Relief Service
Adjustment for Pressure-Reducing or
Pressure-Relief Service
Shutdown
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Top-Mounted Handwheel
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
Scope of Manual
This instruction manual provides installation, adjust-
ment, maintenance, and parts ordering for the Type
655 and 655R actuators and the top-mounted hand-
wheel. Refer to separate instruction manuals for in-
formation about valves and accessories used with
these actuators.
Only personnel qualified through training or experience
should install, operate, and maintain the Type 655 and
655R actuators. If you have any questions about these
instructions, contact your Fisher Controls sales office
or sales representative before proceeding.
1
1
2
2
2
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6
6
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8
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9
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Type 655 and 655R
W0466-1 / IL
Figure 1. T ype 655-ED Pressure-Reducing V alve
1F9408-E / DOC
Figure 2. T ype 655 Actuator Nameplate