Emerson BETTIS G10 Series Service Instructions Manual page 20

Section 3: Actuator Reassembly
October 2015
3�2�31 On G5 through G10 models
NOTE:
Hex cap screws (1-120) are only used as "hole" fillers and serve to protect threads from
environment.
3�2�32 Install and tighten hex cap screws (1-120) with lockwashers (1-115).
3�2�33 Install thrust bearing (2-110) onto position indicator (1-140).
3�2�34 Install O-ring seal (2-100) onto position indicator (1-140).
3�2�35 Install upper bearing (2-120) into yoke cover (1-150).
3�2�36 Install rod wiper (2-80) into yoke cover (1-150).
3�2�37 Install O-ring seal (2-70) into yoke cover (1-150).
3�2�38 Install yoke cover (1-150) onto housing cover (1-20) and over position indicator
NOTE:
During yoke cover installation be careful not to damage O-ring seal (2-70) and rod wiper (2-80).
3�2�39 Place lockwashers (1-170) onto hex cap screws (1-160).
3�2�40 Install and tighten hex cap screws (1-160) with lockwashers through yoke cover
3�2�41 Vent check assembly installation as follows:
NOTE:
Refer to Section 2 step 2.4.3 for correct position indicator placement. Install position indi-
cator (1-220) over the exposed shaft of position indicator assembly (1-140).
3�2�42 Install stop screw nuts (1-190) onto stop screws (1-180).
3�2�43 Install O-ring seals (2-90) onto stop screws (1-180).
3�2�44 Install two stop screws (1-180) into two stop screw holes on the front of
3�2�45 Adjust both stop screws (1-180) back to settings recorded earlier in Section 2 at
3�2�46 Tighten both stop screw nuts (1-190) securely.
16
3�2�31�1 Place lockwashers (1-115) onto hex cap screws (1-120).
assembly (1-140).
(1-150) and into housing cover (1-20).
3�2�41�1 For G01, G2 and G3 housing (1-10) using pipe sealant install one vent
check assembly (13) into the front of housing (1-10).
3�2�41�2 For G01, G2 and G3 housing cover (1-20) using pipe sealant install one
vent check assembly (13) into the top area of housing cover (1-20).
3�2�41�3 For G4 through G10 housing (1-10) using pipe sealant install two vent
check assemblies (13) into the front of housing (1-10).
housing (1-10).
step 2.4.2.
Service Instructions
124842E Rev. C
Actuator Reassembly