JLG 600SC_660SJC Service Manual - Manual (Page 79)

SECTION 4 - CAT CHASSIS (PRIOR TO S/N 0300128000)
3121157 – JLG Lift – 4-17
8. Close covers (6) on Tooling (A). Use Tooling (B) to
compress the recoil spring assembly slightly.
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 I E V E S P R I N G F O R 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).
9. Remove bolts (15) and strip (14) from nut (7). Use
Tooling (D) to remove nut (7) and washer (8) from
the end of bolt (9).
NOTE: Slowly release the pressure on Tooling (B) in order
to allow spring (12) to relax.
10. Open the covers on Tooling (A). Fasten a suitable
lifting device to the disassembled recoil spring
assembly. Remove the reaction plate in order to
remove the recoil spring assembly from Tooling (A).
11. Separate bolt (9), cylinder (10), plate (11), spring
(12), and support (13).
12. Remove O-ring seal (16) and backup ring (17) from
cylinder (10).