Emerson Bettis G2XXX M11 series Service Instructions Manual page 14

Section 2: Actuator Disassembly
August 2015
NOTE:
G01, G2, G3 and G4 model housing cover will have cast tabs for placing prying tools to
aid in cover removal.
2.3.13 Remove housing cover (1-20) from housing (1-10).
NOTE:
Groove pins (1-130) will remain in housing cover (1-20) when housing cover is removed
from housing (1-10). Groove pins (1-130) should not be removed from housing cover (1-
20) unless they are damaged and require new replacements.
2.3.14
2.3.15 Remove top yoke pin thrust bearing (2-10) from top of yoke pin (1-80).
2.3.16 Rotate the arms of yoke (1-70) to the center position of housing (1-10).
2.3.17 Remove yoke (1-70) with yoke pin (1-80); guide block (1-30) and two yoke/guide
2.3.18 Remove bottom yoke pin thrust bearing (2-10) from inside bottom of housing
2.3.19 Remove yoke pin (1-80) by inserting 3/8"-16 UNC screw into top of the yoke pin
2.3.20 Remove guide block (1-30) from between the arms of yoke (1-70).
2.3.21 Remove yoke/guide block bushing (2-30) from top of guide block (1-30).
2.3.22 Remove yoke/guide block bushing (2-30) from the top of the lower yoke arm of
NOTE:
G01 model actuators skip steps 2.2.23 through 2.2.25 and continue disassembly at step
2.2.26.
2.3.23 Refer to assembly drawing sheet 2 Detail "B". Use Bettis tool part numbers
2.3.24 Remove rod extension assemblies (1-50) and (9-50) from guide block (1-30).
NOTE:
Spherical washers (1-40) and (9-40) will be removed from guide block (1-30) when the
extension rod assemblies are removed.
2.3.25 Remove the two remaining spherical washers (1-40) and (9-40) from
2.3.26 Unscrew and remove two stop screw nuts (1-190) from stop screws (1-180).
2.3.27 Unscrew and remove two stop screws (1-180) from front of housing (1-10).
10
Refer to assembly drawing sheet 2 Detail "B". Remove guide bar (1-90) from housing
(1-10).
block bushings (2-30), by lifting the yoke up and out of the housing (1-10).
(1-10).
and pull straight up and out.
yoke (1-70).
117368 (G8/G10), 117369 (G5/G7), 117370 (G3/G4), or 123616 (G2) and remove
retention retainer nut assemblies (1-60) and (9-60) from guide block (1-30).
guide block (1-30).
Service Instructions
124843E Rev. C
Actuator Disassembly