www.Fisher.com
Fisher
™
1051 and 1052 Size 33
Diaphragm Rotary Actuators
Contents
Introduction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuator Mounting and Changing Actuator
Mounting
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F and G Mounting Adaptations
. . . . . . . . . . . . .
H Mounting Adaptation
. . . . . . . . . . . . . . . . . . .
J Mounting Adaptation
. . . . . . . . . . . . . . . . . . . .
1052 Spring Compression Adjustment
. . . . . . . . .
Initial Compression
. . . . . . . . . . . . . . . . . . . . . .
Stroking Range
. . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting Adaptations
. . . . . . . . . . . . . . . . . . . . . .
Replacing Diaphragm
. . . . . . . . . . . . . . . . . . . . . . .
Replacing Diaphragm Plate, Diaphragm Rod,
Spring, and Spring Seat
. . . . . . . . . . . . . . . . . . . .
Changing Or Replacing Actuator Lever
. . . . . . . . .
Proximity Switches, Lever‐Operated Switches,
and Positioner
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Cam
. . . . . . . . . . . . . . . . . . . . . .
Installing Proximity Switches
. . . . . . . . . . . . . .
Switches Indicating Bottom of Stroke
. .
Switches Indicating Top of Stroke
. . . . . .
Installing Lever‐Operated Switch
. . . . . . . . . .
Installing the Push Rod
. . . . . . . . . . . . . . . .
Figure 1. Fisher 1052 Actuator with CV500 Valve and
FIELDVUE™ DVC6200 Digital Valve Controller
W8192‐2
Mounting Lever‐Operated Switch and
Adjustment
. . . . . . . . . . . . . . . . . . . . . . . . . .
Positioner Mounting
. . . . . . . . . . . . . . . . . . . . . . . .
Top‐Mounted Handwheel
. . . . . . . . . . . . . . . . . . . .
Locking Mechanism
. . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Kits
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
Scope of Manual
This instruction manual includes installation, adjustment, operation, maintenance, and parts information for the
Fisher 1051 and 1052 Size 33 diaphragm rotary actuators (figure 1). Mounting adaptations F, G, H, and J are included
in this manual. Instructions for the control valve, positioner, manual actuator, and other accessories are included in
separate manuals.
Instruction Manual
D101322X012
1051 and 1052 Size 33 Actuators
June 2017