Komatsu PC490-11, Installation And Instruction Manual

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1.
Remove centre frame mounting bolts (1) (9 pieces each on
the front and rear side) on one side.
2.
Swing the upper structure to a right angle to track frame
(2) to be moved in.
3.
Connect track frames (2) and (3) on right and left sides
with chain block (4).
4.
Raise the track frame off the ground by using the work
equipment.
REMARK
Raising height (H) of the track frame must be 50 mm or
lower. If the track frame is raised too high, the stopper bolt
will be pried and bent.
5.
Pull track frame (2) with chain block (4) and spread the gauge.
6.
Lower the machine body softly on the ground.
7.
Install bolts (1) (4 pieces on front and rear side) which has
been removed.
Tightening torque: 1520 to 1910 Nm {155 to 195 kgm}
Work on the track frame on the other side in the same way.
SPREAD TRACK FRAME GAUGE
Spread the track frame gauge according to the following procedure.
1.
Remove front and rear centre frame mounting bolts (1) (4
pieces each on the front and rear sides) on the side to be
moved out.
TRANSPORTATION OPERATION
3-250