Bettis P/N 137462E
Revision
"A”
Page 11 of 18
3.3
PNEUMATIC CYLINDER REASSEMBLY
NOTE: Review Section 3 steps 3.1.1 through 3.1.6 before proceeding with cylinder re-assembly.
NOTE: In section 3.3 where the step indicates to "lubricate, coat or apply lubricant", use
lubricant as identified in Section 1 step 1.6 for lubricating the part being installed.
3.3.1
Coat one o-ring seal (5-10) with lubricant and install onto outer diameter flange located
on cylinder/cylinder adapter end of housing (1-10).
-
3.3.2
Actuators equipped with cylinder adapter (4-15), models CBA830-SR, CBA930-SR and
CBA1030-SR, do steps 3.2.22.1 and 3.2.22.2.
3.3.2.1 Install cylinder adapter (4-15) onto housing flange, with the stepped outer
diameter, of cylinder adapter (4-15), facing away from housing (1-10).
3.3.2.2 Install one o-seal (5-15) onto stepped diameter of cylinder adapter (4-15).
3.3.3
Coat all areas of piston (4-50) with lubricant.
3.3.4
Coat rod bushing (5-50) with lubricant and install into the internal rod bushing groove
located in the head of piston (4-50).
3.3.5
Coat rod T-seal (5-25) with lubricant and install in the internal seal groove in the head of
piston (4-50).
3.3.6
Coat piston seal (5-40) with lubricant and install into outer diameter seal groove of piston
(4-50).
3.3.7
Coat piston bearing (5-45) with lubricant and install into outer diameter bearing groove of
piston (4-50).
3.3.8
Install two bushings (4-80) onto piston assembly (4-50) - Refer to following drawing
(Figure 1).
FIGURE 1
3.3.9
With the piston head facing away from housing (1-10) install piston assembly (4-50) onto
center bar assembly (8-10).
