JLG 600SC_660SJC Service Manual - Manual (Page 47)

SECTION 3 - GRADALL CHASSIS
3121157 – JLG Lift – 3-3
1
Track tension adjustment to be made between the idler and carrier roller - 0.781 inches (19.8
mm)
2
Never-Seez to be used on master link pin before assembly. Torque Pad bolts over master link to
65 ft-lbs +6,-6 then tighten 1/3 (120°)turn further.
3 Fill Plug
4 Check oil level of left & right crawler drives (0.69 gal. [2.6 L] grade 90 Gear Oil)
5 Drain Plug
6 Torque to 200 ft-lbs, +15 -0 (280 Nm, +21 -0)
7 Use Gradall 8381-3109 Large Button Head Grease Fitting Adapter to Adjust Tracks
8 Torque to 65 ft-lbs, +10 -0 (91 Nm, +15 -0)
9 Torque to 340 ft-lbs, +25 -0 (476 Nm, +35 -0)
10 Offset in Idler Spring from centerline of Idler to be oriented down.
11 Torque to 165 ft-lbs, +15 -0 (231 Nm, +21 -0)
12 Add Never-Seez to both mounting pilots Drive Motors
13 Torque to 230 ft-lbs, +15 -0 (322 Nm, +21 -0)
14 Torque to 93 ft-lbs, +10 -0 (130 Nm, +14 -0)
15 Torque to 53 ft-lbs, +5 -0 (74 Nm, +7 -0)
Figure 3-2. Chassis Service Notes - Sheet 2 of 2