Emerson Bettis G2XXX M11 series Service Instructions Manual page 23

Service Instructions
124843E Rev. C
3.3.6
3.3.7
3.3.8
3.3.9
3.3.10 Refer to assembly drawing page 2 of 2 Detail "D". Install one O-ring seal (4-70)
3.3.11 Apply lubricant to two sets of rod T-seal components (4-50).
NOTE:
The T-seal is composed of one rubber seal and two split skive-cut back-up rings.
3.3.12 Install two split ring halves (3-50) into the inner most groove in piston rod (3-40)
3.3.13 Install two split ring halves (3-50) into the piston rod, in front of the piston
3.3.14 Install one O-ring seal (4-40) onto the outer diameter seal groove of inner end
3.3.15 Coat one D-ring seal (4-60) with lubricant and install into the piston external
3.3.16 Coat two tie bars (3-20) with lubricant and install by carefully pushing tie bars
3.3.17
3.3.18 Refer to assembly drawing page 2 of 2 Detail "E". Coat two O-ring seals (4-80)
Actuator Reassembly
Install one o-ring seal (4-90) into seal groove located on the inboard face of inner
end cap (3-10).
Install inner end cap (3-10) on to housing (1-10).
NOTE:
The pressure inlet port should be positioned in the same position as recorded in
section 2.2 step 2.2.1.
Place lockwashers (3-110) onto hex cap screws (3-100).
Install hex cap screws (3-100), with lockwashers, through housing (1-10) and
into inner end cap (3-10).
into the seal groove in piston rod (3-40).
3.3.11.1 Install two sets of rod T-seals (4-50) into the internal diameter seal
grooves of piston (3-30).
3.3.11.2 Install a back-up ring on each side of the T-seal.
3.3.11.3 When installing the back-up rings, do not align the skive-cuts.
3.3.11.4 If the back-up rings are too long and the rings overlap beyond the
skive-cuts, then the rings must be trimmed with a razor sharp
instrument.
and retain by installing the recessed area of piston (3-30) onto the piston rod
and over the two split ring halves (3-50).
installed in the previous step, and retain with retainer ring (3-60).
cap (3-10).
seal groove.
NOTE:
The flat side of the D-ring seal go down into the seal groove.
through piston (3-30) and rod T-seal (4-50).
Screw tie bars (3-20) into inner end cap (3-10) and tighten until the threads bottom
out.
with lubricant and install into outer end cap (3-80).
Section 3: Actuator Reassembly
August 2015
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