October 2015
Service Instructions
VA001-196-30 Rev. 1
7
Section 2: Actuator Disassembly
Actuator Disassembly
2�2�1�2 For CBB315/420/520/525/725-M3 or M3HW:
2�2�1�2�1
Remove retainer ring (12-30) and groove pin (12-20) from
optional hex drive hub or from hand wheel (12-10).
2�2�1�2�2
Remove optional hex drive hub or hand wheel (12-10) from M3
jackscrew (1-70).
2�2�1�2�3
Loosen and remove hex nut (4-40) from M3 jackscrew (1-70).
NOTE:
CBB315/420/520/525/725-M3 or M3HW models the M3 jackscrew (1-70) cannot be
removed now. The M3 used in these models can be removed later in this procedure using
step 2.2.8.
ES (4-30), stop screw (4-30) or CBB315-M3 (1-70) does not require removal from end cap
(4-20) unless replacing with a new ES, stop screw or M3.
2�2�2
Remove housing side hex nut (8-20) from center bar (8-10).
2�2�3
Remove outer end cap (4-20) with center bar (8-10) from outboard end of
cylinder (4-10).
2�2�4
While holding housing torque shaft (1-30) pull cylinder (4-10) away from
housing (1-10).
2�2�5
Slide cylinder (4-10) over piston seal (5-40) and remove.
2�2�6
Remove piston (4-50) from housing (1-10).
NOTE:
Piston (4-50) is an assembly made up of one roll pin and one yoke pin; do not attempt to
disassemble the piston assembly.
2�2�7
On actuator models CBB415/520/725 remove cylinder adapter (4-15) from flange
of housing (1-10).
2�2�8
M3 Jackscrew Removal From End Cap (4-20).
2�2�8�1
CBB315/415 with a M3 remove M3 jackscrew (4-30) from the backside of
end cap (4-20).
2�2�8�2
CBB420/520/525/725 with a M3 jackscrew remove per following steps.
2�2�8�2�1
Remove retainer ring (5-60) from M3 adapter (4-55).
2�2�8�2�2
Remove M3 adapter (4-55) from end cap (4-20).
NOTE:
The M3 adapter will be removed from backside of end cap (4-20) with the M3 jackscrew.
ES (4-30), stop screw (4-30) or CBB315-M3 jackscrew (1-70) does not require removal from
end cap (4-20) unless replacing with a new ES, stop screw or M3.
