JLG 600SC_660SJC Service Manual - Manual (Page 80)

SECTION 4 - CAT CHASSIS (PRIOR TO S/N 0300128000)
4-18 – JLG Lift – 3121157
Assembly
1. Install backup ring (17) and O-ring seal (16) into cyl-
inder (10).
PERSONAL INJUR Y OR DEATH CAN RESULT FROM RECOIL
SPRING FORCE.
RECOIL SPRING FORCE, IF NOT RELIEVED, CAN RESULT IN PER-
SONAL INJURY OR DEATH.
R EL IE VE S P R IN G F OR C E B E F O R E R E M O V IN G T H R EA DE D
RETAINER, PERFORMING REPAIRS ON RECOIL SPRING HOUS-
ING, OR REMOVING RECOIL SPRING.
SEE SERVICE MANUAL FOR DISASSEMBLY INSTRUCTIONS.
MAXIMUM PRESSURE IS 20 700 KPA (3,000 PSI).
2. Check the condition of the threads on bolt (9) and
nut (7). If any of the threads are worn or damaged,
install new parts.
3. Loosely assemble bolt (9), cylinder (10), plate (11),
spring (12), and support (13).
4. Install Tooling (C) on Tooling (B), as shown.
NOTE: Two adjustable supports (1), reaction plate (2) and
movable plate (3) are part of Tooling (A).
Table 4-10. Recoil Spring Required Tools - Assembly
Required Tools
Tool Part Number Part Description Qty.
A 4C-9540 Bench 1
B 8S-7172 Hydraulic Cylinder 1
3S-6224 Electric Hydraulic Pump 1
8T-0820 Pressure Gauge 1
3B-7722 Bushing 2
1P-2376 Coupler Assembly 2
1P-2377 Plug 2
8F-0024 Hose Assembly 2
C 4C-6629 Ram Adapter 1
D 4C-8217 55 mm Socket 1
E 5P-3931 Anti-Seize Compound -
F 4C-4030 Thread Lock Compound -