JLG 600SC_660SJC Service Manual - Manual (Page 144)

SECTION 5 - CAT CHASSIS (S/N 0300128000 TO PRESENT)
5-52 – JLG Lift – 3121157
21. Assemble steel ball (6), spring (25) and piston sub
assembly (24), and then assemble swash plate (5).
NOTE: Align hole on sphere of swash plate with steel ball.
After assembly, make sure, using aluminum rod, that
swash plate tilts and rolls smoothly with steel balls as
fulcrum and that it does not rotate.
22. Assemble cylinder block sub assembly which have
been assembled in foregoing sections 16, 17 and
18, using spline of shaft as a guide. Then, assemble
disk (16) and friction plate (62).
NOTE: Apply hydraulic fluid to swash plate. Make sure that
cylinder block sub assembly rotates smoothly and
that piston sub assembly moves freely.
23. Assemble greased O-rings (18), (20) and back-up
rings (21), (54) on brake piston (17). Assemble
greased O-ring (54) on collar (21).
24. Assemble collar (21) on brake piston (17), and then
assemble it on flange holder (1-1).
NOTE: Make two pin holes on brake piston in line with two
pin holes on flange holder.
25. Place a positioning jig, and insert brake piston by
lightly tapping jig head evenly with a plastic hammer.
26. Assemble spring (22) (8 pieces) on brake piston
(17), and O-rings (30), (31) on flange holder (1-1).