Emerson FISHER GX Instruction Manual page 18

GX Valve and Actuator
damage due to overtravel, the handwheel should not
be turned more than 2 full turns past the point at
which the levers no longer contact the stem
connector.
WARNING
To avoid personal injury or loss of
process control due to equipment
damage, ensure the levers are
completely disengaged and the
locking screw is tight while the valve is
in normal pneumatic operation.
During normal pneumatic operation when the
handwheel is not needed, a locking screw (see
figure 5) is provided on the side of the handwheel
housing to lock the handwheel levers out of the way.
18
WARNING
To avoid personal injury or equipment
damage due to possible sudden
shifting or falling of the valve
assembly, do not lift the valve
assembly by the handwheel.
Design GX Handwheel Installation
1. Note the orientation of the levers to the stem
connector for either the air-to-close, spring-to-open
configuration or for the air-to-open, spring-to-close
configuration, as shown in figure 6.
2. Adjust the handwheel to allow positioning the
levers above the stem connector before installation.
3. Install the handwheel to the GX mounting pad
with four studs and nuts, as shown in figure 5.
Torque to 24 NSm (18 lbfSft).
4. Apply lithium grease to the grease zerk and to the
tip of the levers (where they contact the stem
connector), as shown in figure 6.
Instruction Manual
Form 5770
June 2006