July 2020
Installation, Operation and Maintenance Manual
VA-DC-000-1803 Rev. 2
34
Section 5: Module Removal and Installation
Module Removal and Installation
Section 5: Module Removal and Installation
5.1 Pneumatic Power Module Removal
!
CAUTION
Refer to VA115680 for drawing details.
!
CAUTION
Use heavy duty support equipment. Due to the weight and size of power module, heavy
duty support equipment will be required when removing power module from the actuator
housing. Refer to Section 6 for pneumatic power module weights.
5.1.1 Remove all pressure connections.
5.1.2 Using lifting equipment to secure power module, remove pipe plug (3 - 120) from
outer end cap (3 - 80).
5.1.3 Remove hex cap screws (3 - 100) with lock washers (3 - 110) from housing (1 - 10).
5.1.4 Using a male square drive extension, go through outer end cap (3 - 80) and
unscrew piston rod (3 - 40) from the drive module housing (1 - 10).
NOTE:
When removing power module from housing (1 - 10) be careful not to lose O-ring seal (4 - 90).
5.1.5 Remove power module from actuator housing (1 - 10).
5.2 Pneumatic Power Module Installation
NOTE:
Reinstall the power module onto the opposite side of housing (1 - 10) as it was
previously located.
5.2.1 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 early models conrm that the two inboard hex nuts (3 - 90) ats are aligned to
t into the slot located in the end of housing (1 - 10).
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