JLG 600SC_660SJC Service Manual - Manual (Page 54)

SECTION 3 - GRADALL CHASSIS
3-10 – JLG Lift – 3121157
29. Route reverse & forward hoses through frame one at
a time. Lubricate o-rings, and hand tighten to drive
motor fittings.
30. Assemble tee fittings in bottom ports '5' & '6'. Torque
per chart specs. route and connect, shift, & drain
hoses. Torque hoses according to chart specifica-
tions.
31. Assemble swivel tee fitting in bottom port '7'. Route
and connect brake hose. Torque hose & fitting
according to chart specifications.
32. Assemble fittings to center pin for reverse hoses,
ports '3' & '4'. Torque according to chart specifica-
tions. Route and connect hoses to fittings. Torque
hoses according to chart specifications.
33. Assemble fittings to center pin for forward hoses,
ports '1' & '2'. Torque according to chart specifica-
tions. Route and connect hoses to fittings. Torque
hoses according to chart specifications.
34. Move to drive motors. Starting with brake hose for
easy access, torque (3) small hoses on both sides of
the drive motor according to torque chart specifica-
tions.
35. Torque (2) large hoses on each drive motor accord-
ing to torque chart specifications.
36. Install the swivel stabilizer and secure With Loctite.
Torque to 93 ft-lbs, +10-0 (130 Nm, +14 -0).
37. Clean split post on each side of the frame, and wipe
off grease from roller assembly. Apply Never-Seez.
Slide roller assembly into split post hole and secure
with nut, bolt, and loctite. Torque to 340 ft-lbs, +25-0
(476 Nm, +35 -0)on both sides.
38. Place washers on cover plate retaining bolts and
apply loctite on each bolt. Install the cover plates
and torque bolts according to chart specifications.
39. Using overhead crane, set the tracks in position on
the shop floor. Unroll track completely by crane lift-
ing and pushing along. Using bolt cutters to cut wire
securing track pin. Unwrap pin and discard in trash.
repeat for second track.
40. Hook up crane to end of track and curl both ends of
both tracks inwards (for track pad accessibility).
41. Using an impact wrench, remove (4) track pads; one
on each end of each track. Set them aside with the
(4) bolts and nuts in each pad.
42. Using long pry bar, roll back each end of both tracks
flat onto the floor. Measure distance between both
tracks. Mark spacing on floor with chalk. use pry bar
to move track to mark and correct spacing.