JLG 450A_AJ Series II Service Manual - Manual (Page 283)

SECTION 4 - BOOM & PLATFORM
3121180 – JLG Lift – 4-17
16. To remove main pressure seals (205), it is easiest to
cut them using a sharp razor blade being careful not
to damage the seal groove.
17. Remove thrust washers (304), from end cap (4) and
shaft (2).
18. Remove wiper seal (304.1) from groove in end cap
(4) and shaft (2).
19. Remove piston O.D. seal (202).
20. Remove piston I.D. seal (200).