Installation, Operation and Maintenance Manual
VA-DC-000-1878 Rev. 0
December 2020
17
Section 3: Actuator Reassembly
Actuator Reassembly
3.2.1
If guide bar bearings are being replaced install new bearings into guide
block (1 - 30).
NOTE:
The guide bar bearing must be press fit into guide block guide bar bore with the seam
located 45 ±5 degrees of the top or bottom centerline as shown in Section A-A.
NOTE:
G01 model actuators skip steps 3.2.2 through 3.2.13 and continue reassembly at
step 3.2.14.
3.2.2
Lubricate guide block (1 - 30), two spherical washers (1 - 40), and one extension
rod assembly (1 - 50).
3.2.3
Install one spherical washer (1 - 40) into the side of guide block (1 -30).
NOTE:
The spherical side of washer (1 - 40) will be facing to the outside of guide block (1 - 30).
3.2.4
Install second spherical washer (1 - 40) over threaded end of extension rod
assembly (1 - 50).
NOTE:
The spherical side of the washer will go on the extension rod assembly facing the head of
the extension rod assembly.
3.2.5
Install extension rod assembly (1 - 50) into guide block (1 - 30) and up against the
first spherical washer (1 - 40).
3.2.6
Install extension retainer nut (1 - 60) over extension rod assembly (1 - 50) and
screw into guide block (1 - 30).
3.2.7
Tighten extension retainer nut assembly (1 - 60) until extension rod assembly
(1 - 50) cannot move. Back off the extension retainer nut assembly (1 - 60) just
enough to allow for extension rod assembly (1 - 50) to move freely.
NOTE:
Steps 3.2.8 through 3.2.13 are to be completed when the actuator is equipped with a
spring module. If the actuator is Double-Acting, then skip steps 3.2.8 through 3.2.13 and
continue actuator reassembly starting with step 3.2.14.
