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Section 4: Maintenance
April 2016
9.
Figure 17
10.
11.
12.
Figure 18
17
Installation, Operation and Maintenance Manual
Inspect the yoke seals and bushings, and replace all necessary components.
Be sure to lubricate the new yoke seals with the correct Bettis approved lubri-
cant prior to their installation.
Size 488 and larger the O-ring is in a groove in the body
Visually inspect the body slots as well as the pins and rollers on the clevises for
wear. If excessive wear is present new slide inserts(if applicable), pins, rollers, or
a new actuator may be necessary for further safe, reliable operation.
Remove the original sealant from the joining edges of the two separate halves
of the body.
Position the yoke as shown below. This will allow the pins and rollers of the
force modules to slide into their appropriate position between the yoke arms.
Yoke Seals
Yoke Bushings
RGS011110-2 Rev. 0
Maintenance
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