Emerson Bettis G Series - Page 22

December 2020
Installation, Operation and Maintenance Manual
VA-DC-000-1878 Rev. 0
18
Section 3: Actuator Reassembly
Actuator Reassembly
3.2.8 Lubricate guide block (1 - 30), two spherical washers (9 - 40) and one extension
rod assembly (9 - 50).
3.2.9 Install one spherical washer (9 - 40) into the side of guide block (1 - 30).
NOTE:
The spherical side of washer (9 - 40) will be facing to the outside of guide block (1 - 30).
1.1.1 Install second spherical washer (9 - 40) over threaded end of extension rod
assembly (9 - 50).
NOTE:
The spherical side of the washer will go on the extension rod assembly facing the head of
the extension rod assembly.
3.2.10 Install extension rod assembly (9 - 50) into guide block (1 - 30) and up against the
rst spherical washer (9 - 40).
3.2.11 Install extension retainer nut (9 - 60) over extension rod assembly (9 - 50) and
screw into guide block (1 - 30).
3.2.12 Tighten extension retainer nut assembly (9 - 60) until extension rod assembly
(9 - 50) cannot move. Back off the extension retainer nut assembly (9 - 60) just
enough to allow for extension rod assembly (9 - 50) to move freely.
NOTE:
Consult Houston, Texas Bettis Service Coordinator for “yoke bearing, yoke pin bearing or
yoke/guide block bushing installation information".
3.2.13 If the two yoke bearings (2 - 40) are being replaced, install new bearing into
housing cover (1 - 20) and housing (1 - 10).
NOTE:
The yoke bearing (2 - 40) must be press t into housing (1 - 10) and housing cover (1 - 20).
Install the yoke bearings with the bearing seam located 45 ±5 degrees from the yoke arm
slot when yoke (1 - 70) is rotated to its full clockwise position.
3.2.14 If the two yoke pin thrust bearings (2 - 10) are being replaced install new bearing
into housing cover (1 - 20) and housing (1 - 10).
3.2.15 Lubricate two yoke / guide block bushings (2 - 30) and install onto top and bottom
sides of guide block (1 - 30).