Emerson Bettis CBB Series - Housing Disassembly

Service Instructions
137465E Rev. F
May 2012
8
Section 2: Actuator Disassembly
Actuator Disassembly
2�3 Housing disassembly
2.3.1 Remove center bar assembly (8-10) from housing (1-10).
2.3.2 Remove both retaining rings (1-60) from torque shaft (1-30). On the CBB, remove
washers (1-65) from housing.
2.3.3 The following steps may be required before disassembly can continue.
2.3.3.1 If torque shaft (1-30) has any raised burrs or sharp edges they should be
removed.
NOTE:
When removing burrs and sharp edges, remove as little metal as possible.
2.3.3.2 If there is excessive paint build-up on torque shaft (1-30) it should be removed.
2.3.4 Remove the torque shaft (1-30) by pushing it out one side of housing (1-10).
2.3.5 Remove yoke key (1-40) and yoke key spring (1-50) from torque shaft (1-30).
2.3.6 Remove yoke (1-20) from housing (1-10).
2.3.7 Actuator models CBB315-SR with a M3 or M3HW mounted in the outboard end of
housing (1-10) remove M3 jackscrew (1-70) from housing (1-10).
NOTE:
The M3 jackscrew (1-70) will be removed from the inside of housing (1-10).
2.3.8 Actuator models CBB420, 520, 525, 725 with a M3 or M3HW mounted in the
outboard end of housing (1-10) complete steps 2.3.8.1 and 2.3.8.2.
2.3.8.1 Remove retainer ring (2-40) from M3 adapter (1-90).
2.3.8.2 Remove M3 adapter (1-90) from housing (1-10).
NOTE:
The M3 adapter will be removed from the inside of housing (1-10) with the M3 jackscrew.