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Service Instructions
124843E Rev. C
August 2015
18
Section 3: Actuator Reassembly
Actuator Reassembly
3.2.42 NOTE: Refer to Section 2 step 2.3.3 for correct position indicator placement. Install
position indicator (1-220) over the exposed shaft of position indicator assembly
(1-140).
3.2.43 Install stop screw nuts (1-190) onto stop screws (1-180).
3.2.44 Install O-ring (2-90) onto stop screws (1-180).
3.2.45 Install two stop screws (1-180) into two stop screw holes on the front of housing
(1-10).
3.2.46 Adjust both stop screws (1-180) back to settings recorded earlier in Section 2 at step
2.3.2.
3.2.47 Tighten both stop screw nuts (1-190) securely.
3�3
Pneumatic Power Module Reassembly
NOTES:
1.
For early model G2 and G3 actuators with double nuts on the power module use section
3.4 for reassembly.
2.
Refer to Section 2 step 2.1.3 for the correct installation location for piston rod (3-40).
3.
THE ACTUATOR MUST BE IN THE APPROPRIATE OVERTRAVEL POSITION. Confirm over-
travel position by observing the guide block (1-30) is against the inner wall of housing (1-10).
3.3.1
Lubricate piston rod (3-40) and insert through the side of housing (1-10).
3.3.1.1 G2 through G10 screw piston rod (3-40) onto extension rod assembly
(1-50).
3.3.1.2 G01 screw piston rod (3-40) onto guide block (1-30).
3.3.2 Torque tighten piston rod (3-40) to the lubricated torque as listed in the
following table.
Table 3�
Piston Rod Torque Information
Housing
Model
TORQUE (±5%)
Housing
Model
TORQUE (±5%)
Lbf-ft�
N-m
Lbf-ft�
N-m
G01
50
122
G5
240
325
G2
90
122
G7
240
325
G3
90
122
G8
240
325
G4
240
325
G10
240
325
3.3.3 Refer to assembly drawing page 2 of 2 Detail "C". Install one rod wiper (4-10)
into inner end cap (3-10).
3.3.4 Install one rod bushing (4-20) into inner end cap (3-10).
3.3.5
Coat one Polypak seal (4-30) with lubricant and install, lip first, into inner end cap (3-10).
CAUTION: POLYPAK SEAL FACING PISTON SIDE
Install the Polypak seal with energizer ring facing outboard side (away from housing).