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Bettis P/N 124840E
Revision “B”
Page 10 of 46
2.3.12 Using hex cap screws (1-110), install into holes vacated by hex cap screws (1-120). Use
these hex cap screws to jack the housing cover up for removal. Alternately rotate the hex
cap screws clockwise until housing cover (1-20) is clear of housing (1-10).
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 Refer to assembly drawing page 2 of 2 Detail "B". Remove guide bar (1-90) from housing
(1-10).
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 block
bushings (2-30), by lifting yoke up and out of the housing (1-10).
2.3.18 Remove bottom yoke pin thrust bearing (2-10) from inside bottom of housing (1-10).
2.3.19 Remove yoke pin (1-80) by inserting 3/8"-16 UNC screw into top of the yoke pin and pull
straight up and out.
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 yoke
(1-70).
NOTE: G01 model actuators skip steps 2.3.23 through 2.3.25 and continue disassembly at step
2.3.26.
2.3.23 Refer to assembly drawing page 2 of 2 Detail "B". Use Bettis tool part numbers 117368
(G8/G10), 117369 (G5/G7), 117370 (G3/G4), 122849 (G13) or 123616 (G2) and remove
retention retainer nut assemblies (1-60) from guide block (1-30). On spring return
actuators also remove retention retainer nut assemblies (9-60).
2.3.24 Remove rod extension assembly (1-50) from guide block (1-30). On spring return
actuators also remove rod extension assembly (9-50).