Service Instructions
074985 Rev. B
October 2014
1515
Section 12: Return to Service
Return to Service
Section 12: Return to Service
1. Replace the software components of the snubber (1-130) and then install the
snubber into the housing (1-10).
2. Adjust both stop screws (1-60) back to settings recorded in Section 5
under General Disassembly.
3. Tighten both jam nut (1-70) securely, while holding stop screws (1-60).
4. Rotate the yoke to the full clockwise (CW) position. Position the yoke weather
cover (6-110) and position indicator (1-110) on the yoke (1-140) with the pointer
facing the piston rod and perpendicular to the cylinder assemblies.
5. Install and tighten yoke position indicator/yoke weather cover screws (1-120).
NOTE:
These screws will need to be rechecked for tightness after the actuator has been cycled.
6. For actuators equipped with a M3 jackscrew and require an optional handwheel,
install the handwheel using the following procedure:
a. Place the handwheel (8-10) onto the M3 and over the pinned nut
(the handwheel hub has a cast hexagon hole that fits over the pinned
nut).
b. Place lock washer (8-20) onto M3 up against handwheel hub.
c. Place hex nut (8-30) onto M3 and thread up against lock washer, torque
to 250 foot-pounds.
7. The actuator is now ready for returning to service.
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