Emerson Bettis G Series - Page 27

Installation, Operation and Maintenance Manual
VA-DC-000-1878 Rev. 0 December 2020
23
Section 3: Actuator Reassembly
Actuator Reassembly
3.3.9 Install two split ring halves (3 - 50) into the inner most groove in piston rod (3 - 40)
and retain by installing the recessed area of piston (3 - 30) onto the piston rod and
over the two split ring halves (3 - 50).
3.3.10 Install two split ring halves (3 - 50) into the piston rod, in front of the piston
installed in the previous step and retain with retainer ring (3 - 60).
3.3.11 Install one O-ring seal (4 - 40) onto the outer diameter seal groove of inner end
cap (3 - 10).
3.3.12 Coat one D-ring seal (4 - 60) with lubricant and install into the piston external
seal groove.
NOTE:
The at side of the D-ring seal goes down into the seal groove.
3.3.13 Coat two tie bars (3 - 20) with lubricant and install by carefully pushing tie bars
through piston (3 - 30) and rod T-seal (4 - 50).
3.3.14 Screw tie bars (3 - 20) into inner end cap (3 - 10) and tighten until the threads
bottom out.
3.3.15 Refer to assembly drawing page 2 of 2 Detail "E". Coat two O-ring seals (4 - 80) with
lubricant and install into outer end cap (3 - 80).
3.3.16 Apply lubricant to one O-ring seal (4 - 40) and install into the outer diameter
O-ring groove of outer end cap (3 - 80).
3.3.17 Apply lubricant to the bore of cylinder (3 - 70).
3.3.18 Install lubricated cylinder (3 - 70) over piston (3 - 30) and onto inner end cap
(3 - 10). When installing the cylinder over the piston seal tilt cylinder 15 to 30
degrees to piston rod.
!
CAUTION
Carefully install cylinder. If needed, when installing the cylinder, hammer on the end of the
cylinder only with a nonmetallic object.
3.3.19 Install outer end cap (3 - 80) over tie bars (3 - 20) and into cylinder (3 - 70).
NOTE:
The pressure inlet port should be positioned in the same position as recorded in
Section 2.2, step 2.2.1.