Emerson Bettis G2XXX M11 series Service Instructions Manual page 11

Service Instructions
124843E Rev. C
CAUTION: DO NOT DAMAGE O-RING GROOVE
Do not damage O-ring groove when removing end cap.
2.2.4
NOTE:
When removing cylinder (3-70) off of piston (3-30), tilt the cylinder 15 to 30 degrees
with respect to actuator centerline.
2.2.5
CAUTION: DO NOT USE PIPE WRENCH
Do not use pipe wrench to remove tie bars.
2.2.6
Actuator Disassembly
The fit between cylinder (3-70) and outer end cap (3-80) is very tight. Break end
cap free by tapping with a breaker bar on lip provided on the end cap. Remove
outer end cap (3-80) from cylinder (3-70).
Remove cylinder (3-70) from inner end cap (3-10).
TIE BAR REMOVAL:
NOTE:
G01, G2 and G3 models have flats on outboard end of tie bars (3-20) for
wrench placement.
2.2.6.1 Remove G01, G2 and G3 tie bars (3-20) as follows:
2.2.6.1.1 Unscrew tie bars (3-20) from inner end cap (3-10). Pull the tie
bars out of the inner end cap far enough to expose the O-ring
seals (4-80).
2.2.6.1.2 Remove O-ring seals (4-80) from the inboard end of tie bars (3-20).
2.2.6.1.3 Remove tie bars (3-20) by pulling the tie bars out and
through piston (3-30).
NOTE:
G4 models have flats on outboard end of tie bars (3-20) for wrench placement.
NOTE:
G5 through G10 models have a female square on the outboard end of tie bars
(3-20) for wrench placement.
2.2.6.2 Remove G4 through G10 tie bars (3-20) as follows: Unscrew and
remove tie bars (3-20) from inner end cap (3-10) and piston (3-30).
Section 2: Actuator Disassembly
August 2015
7