JLG 450A_AJ Series II Service Manual - Manual (Page 281)

SECTION 4 - BOOM & PLATFORM
3121180 – JLG Lift – 4-15
7. Remove stop tube if included. Stop tube is an avail-
able option to limit actuator rotation.
8. Actuator has timing marks for proper engagement.
9. Use a felt marker to clearly indicate timing marks
between shaft and piston before removing shaft, (2).
This will greatly simplify timing during assembly.
10. Remove shaft (2). It may be necessary to strike
threaded end of shaft with a rubber mallet.