Emerson Bettis G2XXX M11 series Service Instructions Manual page 21

Service Instructions
124843E Rev. C
NOTE:
Complete step 3.2.32 on G5, through G10 model actuators. For G01 through G4 model
actuators skip step 3.2.32 and proceed to step 3.2.33.
3.2.32 On G5 through G10 models;
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
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:
Actuator Reassembly
Table 2� Housing Cover Screw Quantity and Torque
TORQUE (±5%)
Model Qty
Lbf-ft�
G01 4 40
G2 6 40
G3 8 40
G4 8 40
3.2.32.1 Place lockwashers (1-115) onto hex cap screws (1-120).
NOTE:
Hex cap screws (1-120) are only used as "hole" fillers and to protect threads from
environment.
3.2.32.2 Install and tighten hex cap screws (1-120) with lockwashers (1-115).
assembly (1-140).
NOTE:
During yoke cover installation be careful not to damage O-ring seal (2-70) and
rod wiper (2-80).
(1-150) and into housing cover (1-20).
3.2.41.1 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 G01, G2 and G3 housing cover (1-20) using pipe sealant install one vent
check assemble (13) into the top area of housing cover (1-20).
3.2.41.3 G4 through G10 housing (1-10) using pipe sealant install two vent
check assemblies (13) into the front of housing (1-10).
Section 3: Actuator Reassembly
Model Qty
N-m
54 G5 8
54 G7 8
54 G8 12
54 G10 16
August 2015
TORQUE (±5%)
Lbf-ft� N-m
100 136
100 136
100 136
100 136
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