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Section 5 • Maintenance/Service
Actuator Installation Using Anti-Rotation
Bolts
Tools Needed: A 7/16" open wrench or torque wrench
with 7/16" crowfoot wrench adapter.
Part #: The parts come with the actuator. Retrofit kit #
is 25972R (Includes 4 sets of bolts, washers, retainers &
E-clips).
1.
Install the Grooved Bolt and Washer and torque
them to 6 lb-ft. See figure 5-67 (a).
It may be necessary to adjust the bolt position so
that one of the bolt edges is parallel to line A and
B, then the retainer will drop-on easily. If required,
tighten bolt further for this alignment.
A
Retainer
GrooveLok™
(Many Shapes
Bolt
Available)
Groove Bolt
Washer
(a) Groove bolt and washer
Complete
Assembly
Figure 5-67. Actuator Installation Using Anti-Rotation Bolts
5 – 64
NOTE
B
E-clip
Assembled
VSS/VSM/VSH/VSSH • Installation, Operation and Maintenance Manual • Emerson • 35391SD
2.
Position Locking Retainer over Grooved Bolt, with
the shallow curved edge toward the center of the
command shaft housing. See figure 5-67 (b).
The locking retainer hex hole is offset 3° so flipping it
over gives it new positioning.
3.
Push E-Clip into Grooved Bolt Head. Once E-clip is
on make sure it rotates back and forth freely. This
will ensure E-Clip is completely seated. See figure
5-67 (c).
(b) Locking Retainer
(C) E-clip
NOTE
Locking
Retainer
E- clip
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Troubleshooting
