JLG 600SC_660SJC Service Manual - Manual (Page 84)

SECTION 4 - CAT CHASSIS (PRIOR TO S/N 0300128000)
4-22 – JLG Lift – 3121157
3. Remove bolts (4), plate (5), and plate assembly (6)
from piston assembly (1).
4. Remove O-ring seals (7) and (10). Remove backup
rings (8), (9), (11), and (12) from piston assembly
(1).
5. Remove fill valve (13) and relief valve (2) from piston
assembly (1).
Installation
NOTE: O-ring seals and backup rings must be installed in
the correct position in order to ensure the correct
operation of the hydraulic track adjuster. Backup
rings are distinguished by the color of the ring.
Backup rings (9) and (12) are black in color. Backup
rings (8) and (11) are brown in color.
1. Completely fill the seal grooves in piston (1) with
Tooling (B). Tooling (B) will displace air when the O-
ring seals and the backup rings are installed. Install
backup rings (9) and (12). Install backup rings (8),
and (11).
Table 4-12. Track Adjuster Required Tools -
Installation
Required Tools
Tool Part Number Part Description Qty.
A 1P-0520 Driver Group 1
B 5P-0960 Molybdenum Grease -