JLG M450 Service Manual User Manual
Page 129
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SECTION 4 - BOOM & PLATFORM
3121829
– JLG Lift –
4-17
7. Remove the stop tube if included. The stop tube is
an available option to limit the rotation of the actua-
tor.
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
piston. This will greatly simplify timing during assem-
bly.
10. Remove the shaft (2). It may be necessary to strike
the threaded end of the shaft with a rubber mallet.
11. Before removing the piston (3), mark the housing (1)
ring gear in relation to the piston O.D. gear. There
should now be timing marks on the housing (1) ring
gear, the piston (3) and the shaft (2).
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