Installation, Operation and Maintenance Manual
VA-DC-000-1878 Rev. 0
December 2020
39
Section 5: Module Removal and Installation
Module Removal and Installation
NOTE:
When removing power module from housing (1 - 10) be careful not to lose O-ring seal (4 - 90).
5.5.4
Remove power module from actuator housing (1-10).
5.6
Pneumatic Power Module Installation
NOTE:
Reinstall the power module onto the opposite side of housing (1 - 10) as it was
previously located.
5.6.1
Check to verify that O-ring seal (4 - 90) is properly seated in its seal groove located
on the housing side of inner end cap (3 - 10).
NOTE:
G2 and G3 models confirm that the two inboard hex nuts (3 - 90) flats are aligned to fit into
the slot located in the end of housing (1 - 10).
5.6.2
Using lifting equipment move the power module up to housing (1 - 10) and align
piston rod (3 - 40) with extension rod assembly (1 - 50).
5.6.3
Using a male square drive extension, go through outer end cap (3 - 80) and screw
piston rod (3 - 40) into extension rod assembly (1 - 50).
!
CAUTION
Do not cross-thread piston rods. When screwing piston rod into extension
rod assembly (1 - 50) make certain that the piston rod and extension rod assembly
threads do not cross-thread.
5.6.4
Torque tighten piston rod (3 - 40) as follows:
5.6.4.1
G2 and G3 torque to 90 lb-ft lubricated.
5.6.4.2
G4 and G10 torque to 240 lb-ft lubricated.
5.6.5
Install lock washers (3 - 110) onto hex cap screws (3 - 100).
5.6.6
Install and tighten hex cap screws (3 - 100) with lock washers (3 - 110) through
housing (1 - 10) and screw into inner end cap (3 - 10).
5.6.7
Using pipe dope, install pipe plug (3 - 120) into outer end cap (3 - 80).
