Joyce MA7007 - Manual (Page 5)

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4. To set the upper limit switch position, secure the inner tube from rotating by either
gripping it by hand or slide a screwdriver through the clevis hole and lay the actuator
down flat on a suitable work surface.
5. Electrically operate the actuator until the desired extend position is reached. If the
actuator stops on its own before reaching the desired position the retract position may
have been set too high and the physical travel limitations of the actuator have been
exceeded. To rectify this problem repeat steps 1 & 2 or modify your assembly/structure
geometry.
6. Once the desired extend position is reached. Use an Allen wrench to remove the five hex
head cap screws at the base of the actuator housing, and gently pull the limit switch
cover off the housing. It may be necessary to straighten the wires in the pigtail to facilitate
separation. This will expose the limit switch assembly.
7. Loosen the Philips-head screw on the limit switch cam assembly just enough so the
upper cam can separate from the lower cam but not enough where the screw is removed
completely. Adjust the upper cam by simultaneously pulling gently away from the lower
cam and rotate until the upper cam just depresses the extend limit switch plunger. Take
care not to disturb the position of the lower cam and gear.
8. Tighten the Philips-head screw and if desired electrically retract the actuator to confirm
the retracted dimension and extend to confirm the fully extended position. If satisfied
continue to the next step otherwise repeat the instructions outlined above.
9. Carefully replace the cover, taking care that the gasket is in place and the wires remain
tucked inside the cover. Tighten the five socket head cap screws to fasten the cover in
place.
10. Once the limit switches are set, the unit can be mounted into the assembly.
Figure 1 – Limit Switch Schematic Figure 2 – View of Limit Switch Inside Housing