JLG 600SC_660SJC Service Manual - Manual (Page 128)

SECTION 6 - UNDERCARRIAGE
6-24 – JLG Lift – 3120898
7. Put a level gauge (4) on the recoil spring assembly.
Reposition the recoil spring assembly until the recoil
spring assembly is level. Reposition the recoil spring
assembly until the retaining rod for the recoil spring
and the nut for the recoil spring assembly are cen-
tered in the hole in reaction plate (2). After the recoil
spring assembly is leveled and centered, install two
pins (5) on the back side of reaction plate (2), as
shown. Operate tooling (B) enough to hold the recoil
spring assembly in position between reaction plate
(2) and movable plate (3). Make sure that the recoil
spring assembly is level and centered.
PERSONAL INJURY OR DEATH CAN RESULT FROM RECOIL
SPRING FORCE.
RECOIL SPRING FORCE, IF NOT RELIEVED, CAN RESULT IN
PERSONAL INJURY OR DEATH.
RELIEVE SPRING FORCE BEFORE REMOVING THREADED
RETAINER, PERFORMING REPAIRS ON RECOIL SPRING HOUS-
ING, OR REMOVING RECOIL SPRING.
MAXIMUM RECOIL SPRING PRESSURE IS 3000 PSI (20,700 KPA).
8. Close covers (6) on tooling (A). Use tooling (B) to
compress the recoil spring assembly slightly.
9. Use tooling (D) to remove locknut (7), nut (8) and
the washer from the end of the retaining rod of the
recoil spring assembly.
10. Open covers (6) on tooling (A). Fasten a suitable lift-
ing device to the disassembled recoil spring assem-
bly. Remove reaction plate (2) in order to remove the
recoil spring assembly from tooling (A).
11. Separate the components of the recoil spring
assembly. Remove retaining rod (12), plate (11),
spring (10), and support (9).