Changing Actuator Mounting - Fisher 1061 Instruction Manual

1061 F & G Actuator
June 2017
WARNING
To avoid possible personal injury, do not stroke the actuator while the cover (key 34) is off.
a. If no handwheel actuator is to be used, position the travel indicator (key 38) according to the valve disk or ball
position just noted. Replace the cover (key 34), and secure it with the washers and cap screws (keys 76 and 35). If the
holes in the cover and housing (key 21) do not align, temporarily loosen the cap screws (key 24) and shift the housing
slightly. Do not stroke the actuator while the cover is off.
b. If a manual handwheel actuator is to be used, refer to the separate instruction manual for mounting
instructions.
18. If the 1061 actuator is equipped with an auxiliary handwheel actuator, make certain that a cylinder bypass valve
(key 68, figure 10) is also used to equalize cylinder pressure during handwheel operation. Operating the handwheel
actuator by itself against the force of differential cylinder pressures is difficult or even impossible. Install a bypass
valve as shown in figure 10. If the actuator was equipped with a valve positioner, refer to the positioner instruction
manual mounting procedures.

Changing Actuator Mounting

The actuator is normally positioned vertically in a horizontal pipeline. However, four mounting styles and four
positions are possible for each style. See figure 2.
Be sure to refer to the appropriate valve instruction manual for lever/valve shaft orientation, when changing styles
and/or positions. Most mounting changes will require the actuator lever to change position in relationship to the valve
splined shaft. It is possible to damage the valve if the actuator drives the valve disk or ball past its fully open or fully
closed position.
Refer to the Actuator Mounting section, to disassemble and assemble the actuator when changing the style or
position of the actuator.
CAUTION
Do not use a hammer or similar tool to drive the lever (key 28) off the valve shaft. Driving the lever could damage internal
valve parts. On some valves, driving the lever off the shaft could move the valve disk or ball and bearings away from the
centered position, causing subsequent damage to valve parts as the valve is operated.
If necessary, use a wheel puller to remove the lever from the valve shaft. It is permissible to tap the wheel puller screw
lightly to loosen the lever, but hitting the screw with excessive force could damage valve parts or disrupt the centered
position of the valve disk or ball and bearings.
When changing styles and/or positions, most mounting changes will require the actuator lever to change position in
relationship to the valve splined shaft. It is possible to damage the valve if the actuator drives the valve disk or ball past its
fully open or fully closed position.
Key numbers referenced in the following procedures are shown in figures 8, 9 and 11.
Changing Styles
Style A is right‐hand mounted while Style D is left‐hand mounted. In all other ways, styles A and D are identical.
Style B is right‐hand mounted while Style C is left‐hand mounted. In all other ways, styles B and C are identical.
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Instruction Manual
D100324X012