Bettis P/N 127073E
Revision “A”
Page 29 of 37
5.4.15.2
To fluid fill M11-S Manual Hydraulic Override System refer to instructions
part number 121960.
5.4.16 If removed install stop screw nuts (1-190) onto stop screws (1-180).
5.4.17 If removed install o-ring (2-90) onto stop screws (1-180).
5.4.18 If removed install two stop screws (1-180) into two stop screw holes on the front of
housing (1-10).
5.4.19 Adjust both stop screws (1-180) back to settings recorded earlier in Section 5.
5.4.20 Tighten both stop screw nuts (1-190) securely.
5.5
PNEUMATIC POWER MODULE REMOVAL
CAUTION:
Due to the weight and size of power module, heavy duty support equipment
will be required when removing power module from the actuator housing.
Refer to section 6 for Pneumatic Power Module weights.
5.5.1
Remove pipe plug (3-120) from outer end cap (3-80).
5.5.2
Remove hex cap screws (3-100) with lockwashers (3-110) from housing (1-10).
5.5.3
Using a male square drive extension, go through outer end cap (3-80) and unscrew piston
rod (3-40) from extension rod assembly (1-50).
NOTE: When removing power module from housing (1-10) be careful not to loose o-ring seal
(4-90).
5.5.4
Remove power module from actuator housing (1-10).
5.6
PNEUMATIC POWER MODULE INSTALLATION
NOTE: Re-install the power module onto the opposite side of housing (1-10) as it was previously
located.
5.6.1
Check to verify that o-ring seal (4-90) is properly seated in its seal groove located on the
housing side of inner end cap (3-10).
NOTE: G2 and G3 models confirm that the two inboard hex nuts (3-90) flats are aligned to fit into
the slot located in the end of housing (1-10).
5.6.2
Using lifting equipment move the power module up to housing (1-10) and align piston rod
(3-40) with extension rod assembly (1-50).
5.6.3
Using a male square drive extension, go through outer end cap (3-80) and screw piston rod
(3-40) into extension rod assembly (1-50).
CAUTION:
When screwing piston rod into extension rod assembly (1-50) make certain
that the piston rod and extension rod assembly threads do not cross-thread.