Emerson Process Management BETTIS G01 - Manual (Page 15)

Bettis P/N 124840E
Revision “B”
Page 11 of 46
NOTE: One spherical washer (1-40) will be removed from guide block (1-30) when extension rod
assembly is removed. On spring return actuators also one spherical washer (9-40) will be
removed from guide block (1-30).
2.3.25 Remove the remaining spherical washer (1-40) from guide block (1-30). On spring return
actuators also remove the remaining spherical washer (9-40) from guide block (1-30).
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).
2.3.28 Housing (1-10) vent check assembly removal as follows:
2.3.28.1 G01, G2 and G3 housing (1-10) unscrew and remove one vent check
assembly (13) from the front of housing (1-10).
2.3.28.2 G4 through G13 housing (1-10) unscrew and remove two vent check
assembly’s (13) from the front of housing (1-10).
2.3.29 The following items do not need to be removed from their assembled locations unless
being replaced by new items: Two guide bar bearings, two yoke bearings (2-40), yoke pin
bearing and yoke pin thrust bearing (2-10).
2.4 BLIND END CAP MODULE REMOVAL
2.4.1 Remove hex cap screws (5-20), with spring lockwashers (5-30), from blind end cap (5-10).
2.4.2 Remove blind end cap (5-10) from end of housing (1-10).
2.5 M3 HANDWHEEL OR M3 HEX DRIVE HUB REMOVAL
2.5.1 M3 HANDWHEEL OR HEX DRIVE HUB REMOVAL FROM M3 STUD.
2.5.1.1 Using pin punch drive out two grooved pins (10-20) and (10-30) from handwheel
hub or hex drive hub (10-10).
2.5.1.2 Remove handwheel or hex drive hub (10-10) from M3 stud (5-50).
2.5.2 EARLY MODEL G2 & G3 M3 HANDWHEEL AND HEX NUT REMOVAL FROM
JACKSCREW
2.5.2.1 Remove hex nut, lockwasher from M3 jackscrew.
2.5.2.2 Remove handwheel from M3 jackscrew.
2.5.2.3 Using pin punch drive out spiral pin from outboard end of M3 jackscrew.
2.5.2.4 Remove hex nut from M3 jackscrew, and handwheel.