Bettis P/N 127073E
Revision “A”
Page 14 of 37
3.2.31 Torque tighten hex cap screws (1-110) until a final lubricated torque, as listed in the
following table, has been achieved.
HOUSING COVER SCREW QUANTITY AND TORQUE TABLE
TORQUE
(±5 % Percent)
TORQUE
(±5 % Percent)
MODEL
QTY
FT-lb
N-m
MODEL
QTY
FT-lb
N-m
G01
4
40
54
G5
8
100
136
G2
6
40
54
G7
8
100
136
G3
8
40
54
G8
12
100
136
G4
8
40
54
G10
16
100
136
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
3.2.32.1
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).
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 assembly
(1-140). 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 (1-150)
and into housing cover (1-20).
3.2.41 Vent check assembly installation as follows:
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).