Manitowoc Published 08-12-19, Control # 224-13_v2 4-167
MLC650 OPERATOR MANUAL SET-UP AND INSTALLATION
Removing Second Crawler
See Figure 4-129 for the following procedure:
1. Swing the rotating bed (1) 180° or perpendicular to the
second crawler (3). Park the swing.
Reference Table 4-3
for swing limits during crawler
disassembly.
2. Install chain slings from the crawler frames to the
crawler shoes to prevent excessive crawler track sag.
Refer to step 4
of Installing the First Crawler.
NOTE: Some sag must be allowed to prevent interference
between the carbody and crawler pads.
3. Extend the carbody jacking cylinder (4) so the carbody
distance (5) is high enough for the crawler pads to clear
the ground and the crane is level.
NOTE: Make sure that the carbody jacking cylinders are
still in alignment with the pads.
4. Position the slings (2) above the second crawler.
5. Attach the slings and remove the second crawler. See
step 5
through step 15 of Removing First Crawler for the
procedure.
6. Position the live mast to 156.8°, extend the self-erect
cylinder, and remove the rigging.
7. Retract the self-erect cylinder and bring the live mast to
a 110° angle.
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