JLG 600SC_660SJC Service Manual - Manual (Page 127)

SECTION 6 - UNDERCARRIAGE
3120898 – JLG Lift – 6-23
1. Prior to disassembling and assembling the recoil
spring assembly, make sure that tooling (A) is on a
level surface.
2. Thoroughly clean the outside surface of the recoil
spring assembly prior to disassembly.
3. 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).
4. Position two supports (1) of tooling (A) in order to
support the recoil spring assembly. Make sure the
two supports are level.
5. Adjust the spacing between reaction plate (2) and
movable plate (3) so that the spacing is approxi-
mately the same length as the recoil spring assem-
bly.
NOTE: Do not remove the lifting device from the recoil
spring assembly until the unit is leveled, centered
and locked in tooling (A).
NOTE: The recoil spring assembly may be installed in tool-
ing (A) from the end. In this case, reaction plate (2)
must be removed. Then reinstall the reaction plate
after the recoil spring assembly is in place on two
adjustable supports (1).
6. The weight of the recoil spring assembly is 117 lb.
(53 kg). Fasten a suitable lifting device to the recoil
spring assembly. Put the recoil spring assembly in
position on two adjustable supports (1) in tooling
(A). Adjust the two adjustable supports until the cen-
terline of the recoil spring assembly and the center-
line of tooling (A) are aligned.
NOTE: The lifting device is removed from the recoil spring
assembly for photographic purposes.