JLG 510AJ Service Manual - Manual (Page 129)

SECTION 3 - CHASSIS AND TURNTABLE
3121181 – JLG Lift – 3-87
Setting the Actuator
1. Remove bolt from control linkage
2. With control linkage pushed against idle stop, begin to
make adjustments to actuator linkage to align bearing
of spherical rod end with control linkage bolt hole.
When making linkage adjustments, thread spherical rod
end and threaded rod evenly (for every turn of spherical
rod end, turn threaded rod.)
DURING THIS PROCEDURE IT IS VERY IMPORTANT TO KEEP
CONTROL LINKAGE PUSHED AGAINST THE STOP.
3. Once the adjustments have been made to align the
spherical rod end bearing with the control linkage bolt
hole, lengthen the actuator linkage by continuing to
turn the spherical rod end and threaded rod 2-2 ½ turns
(1-1 ¼ turns of spherical rod end and 1-1 ¼ turns of
threaded rod.) This will provide 1/8” (3 mm) preload.
Use a measuring device to ensure the preload is approx-
imately 1/8” (3 mm), then secure the actuator linkage to
the control linkage with original bolt and nut. Make sure
the spherical ball is seated in the control linkage bolt
hole. Tighten two nuts on the threaded rod of the actua-
tor linkage and using two wrenches to prevent binding
of clevis heads.