Bettis P/N 137462E
Revision
"A”
Page 5 of 18
SECTION 2 - ACTUATOR DISASSEMBLY
2.1 GENERAL
DISASSEMBLY
WARNING: It is possible, that the actuator may contain a dangerous gas and/or
liquids. Ensure that all proper measures have been taken to prevent
exposure or release of these types of contaminants before commencing
any
work.
CAUTION: Pressure applied to the actuator is not to exceed the maximum operating
pressure rating listed on the actuator name tag.
NOTE: Before starting the general disassembly of the actuator it is a good practice to operate
actuator with the pressure used by the customer to operate the actuator during normal
operation. Notate and record any abnormal symptoms such as jerky or erratic
operation.
2.1.1
Remove all operating pressure from actuator.
NOTE: In place of stop screws the actuator may be equipped with one or two ES (ES =
Extended Stops) or M3/M3HW located on outboard end of housing (1-10) and end cap
(4-20).
2.1.2 Record the settings of stop screw, ES or M3 jackscrews (6-30) and (4-30) before they
are loosened or removed.
2.1.3
To help in correct re-assembly all mating parts should be marked or tagged for ease of
re-assembly, i.e. cylinder to cylinder adapter, cylinder adapter to housing, housing to
torque shaft and housing to housing adapter, etc.
2.2
PNEUMATIC CYLINDER DISASSEMBLY
NOTE: Review Section 2 steps 2.1.1 through 2.1.3 before proceeding with cylinder
disassembly.
2.2.1
Remove hex nut (4-40) as follows: CBA730 through CBA1030 standard end cap stop
screw or extended stop (ES) use step 2.2.1.1. CBA730 through CBA1030 with -M3 or
-M3HW use step 2.2.1.2.
2.2.1.1 CBA730 through CBA1030 end cap stop screw or extended stop screw (ES)
2.2.1.1.1
Loosen and remove hex nut (4-40) and washer (4-90)
from stop screw or ES (4-30) located in end cap (4-20).
2.2.1.1.2
Remove stop screw or ES (4-30) from the end cap (4-20).