JLG 660AJ Service Manual - Manual (Page 163)

SECTION 4 - BOOM & PLATFORM
3121616 – JLG Lift – 4-15
Assembly
1. Gather all components and tools to one location. Use
cut away drawing to reference seal orientations.
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. Use 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).