JLG 510AJ Service Manual - Manual (Page 215)

SECTION 4 - BOOM AND PLATFORM
3121181 – JLG Lift – 4-17
2. Install thrust washer (304) on shaft (2) and end cap (4).
3. Install wiper seal (304.1/green 0-ring) in groove on shaft
(2) and end cap (4) around outside edge of thrust
washer (304).
4. Using a seal tool install main pressure seal (205) on shaft
(2) and end cap (4). Use seal tool in a circular motion.
5. Install wear guide (302) on end cap (4) and shaft (2).
6. Install inner T-seal (200) in piston (3) using a circular
motion.
Install outer T-seal (202) by stretching it around the
groove in a circular motion.