Oshkosh Corporation JLG 450AJ, Service And Maintenance Manual

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SECTION 4 - BOOM & PLATFORM
3121659 – JLG Lift – 4-21
7. Actuator has timing marks for proper engagement.
8. Use a felt marker to clearly indicate timing marks
between shaft and piston before removing shaft, (2).
This simplifies timing during assembly.
9. Remove shaft (2). It may be necessary to strike threaded
end of shaft with a rubber mallet.
10. Mark housing (1) ring gear in relation to piston O.D. gear
before removing piston sleeve (3). There should be tim-
ing marks on housing ring gear (1), piston (3) and shaft
(2).
11. Use a rubber mallet and plastic mandrel to prevent dam-
age when removing piston sleeve (3).