July 2020
Installation, Operation and Maintenance Manual
VA-DC-000-1803 Rev. 2
28
Section 3: Actuator Reassembly
Actuator Reassembly
NOTE:
To move the piston (7 - 30) through the bore of cylinder (7 - 70) may require
mechanical assistance.
3.5.11 Coat one piston seal (8 - 60) with uid and install into the piston external
seal groove.
3.5.12 Refer to assembly drawing sheet 2 Detail "C". Coat Polypak seal (8 - 30) with
hydraulic uid and install; lip rst, into inner end cap (7 - 10).
!
CAUTION
Install Polypak seal correctly. Install the Polypak seal with energizer ring facing piston side
of inner end cap (7 - 10).
3.5.13 Install rod bushing (8 - 20) into inner end cap (7 - 10).
3.5.14 Install rod wiper (8 - 10) into inner end cap (7 - 10).
3.5.15 Install one O-ring seal (8 - 90) into inboard face of inner end cap (7 - 10).
3.5.16 Install inner end cap (7 - 10) onto piston rod (7 - 40).
3.5.17 Install two tie bars (7 - 20) into inner end cap (7 - 10).
NOTE:
The tie bars should be installed across from each other. Refer to the CAUTION after
step 3.5.20.
3.5.18 Install one O-ring seal (8 - 40) into inboard face of outer end cap (7 - 80).
3.5.19 Install outer end cap (7 - 80) into open end of cylinder (7 - 70).
NOTE:
The pressure inlet ports of the inner and outer end caps should be positioned in the same
position as recorded in Section 2, step 2.4.3.
3.5.20 Install the remaining tie bars (7 - 20) through outer end cap (7 - 80) and into inner
end cap (7 - 10). Refer to the following CAUTION:
!
CAUTION
Install tie bars correctly. Assemble tie bars (7 - 20) into inner end cap (7 - 10) a minimum
engagement of one tie bar thread diameter. Ensure that three to four threads are equally
exposed beyond the tie bar nuts (7 - 90) at the outer end cap (7 - 80).
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