JLG 450A_AJ Series II Service Manual - Manual (Page 228)

SECTION 4 - BOOM & PLATFORM
4-16 – JLG Lift – 3121290
15. Looking from view shown, use existing timing marks to
line up gear teeth on shaft (2) with gear teeth on inside
of piston (3). Now tap flange end of shaft with a rubber
mallet until gear teeth engage.
16. Install 2 bolts in threaded holes in flange. Using a bar,
rotate shaft clockwise until wear guides are seated
inside housing bore.
17. Coat threads on end of shaft with anti-seize grease to
prevent galling.
18. Install 0-ring (9) and back-up ring (10) in inner seal
groove on end cap (4).