JLG 600SC_660SJC Service Manual - Manual (Page 73)

SECTION 4 - CAT CHASSIS (PRIOR TO S/N 0300128000)
3121157 – JLG Lift – 4-11
2. Use Tooling (B) in order to position track roller (3) on
the undercarriage. The weight of track roller (3) is
approximately 25 kg (55 lb).
3. Install the bolts that hold track roller (3) in position.
Tighten the bolts for track roller (3) to a torque of 270
± 40 Nm (200 ±30 lb ft).
4. Use Tooling (B) in order to position track guide (2)
on the undercarriage. Install the bolts that secure
track guide (2).
5. Prior to lowering the machine to the ground and
tightening the track, make sure that all of the track
rollers rotate smoothly by manually turning the track
rollers.
6. Lift the machine off Tooling (A).
7. Remove Tooling (A) from the machine. Lower under-
carriage (1) to the ground.
8. Tighten the track to the proper tension. Refer to Sec-
tion 4.12, Track Adjustment.
4.5 TRACK
Separation
PERSONAL INJURY OR DEATH CAN RESULT FROM GREASE AND
OIL COMING OUT OF THE RELIEF VALVE.
GREASE AND OIL ARE UNDER HIGH PRESSURE COMING OUT OF
THE RELIEF VALVE AND CAN PENETRATE THE BODY.
DO NOT WATCH THE RELIEF VALVE TO SEE IF GREASE IS
ESCAPING. WATCH THE TRACK OR TRACK ADJUSTMENT CYLIN-
DER TO SEE IF THE TRACK IS BEING LOOSENED.
MAKE SURE THE VENT HOLES ARE CLEAN BEFORE THE TENSION
IS RELEASED ON THE TRACK.
PERSONAL INJURY CAN RESULT FROM THE TRACK COMING OFF
OF THE ROLLER FRAME.
THE TRACK CAN MOVE OFF THE TRACK ROLLER FRAME VERY
QUICKLY WHEN A SEPARATION OF THE TRACK IS MADE.
KEEP AWAY FROM THE FRONT OF THE MACHINE WHEN THE
TRACK IS REMOVED FROM THE TRACK ROLLER FRAME.
1. Park the machine on a flat, level surface.
2. Position the master pin in a horizontal line through
the center of the idler.
3. Release the tension on the track assembly. Refer to
Section 4.12, Track Adjustment.
Table 4-6. Track Required Tools - Separation
Required Tools
Tool Part Number Part Description Qty.
A 5P-6214 Track Block Assembly 1