JLG 1200SJP Service Maintenance Manual page 314

SECTION 4 - BOOM & PLATFORM
6. Remove the end cap (4) and set aside for later inspec-
tion.
7. Remove the stop tube if included. The stop tube is an
available option to limit the rotation of the actuator.
4-80
8. Every actuator has timing marks for proper engage-
ment.
9. Prior to removing the shaft, (2), use a felt marker to
clearly indicate the timing marks between shaft and pis-
ton. This will greatly simplify timing during assembly.
– JLG Lift – 3121142