Manitowoc Published 08-12-19, Control # 224-13_v2 4-145
MLC650 OPERATOR MANUAL SET-UP AND INSTALLATION
8. Use the hand-held pin pullers to remove the boom butt
hinge pins (3).
9. Remove the boom butt hinge pins.
10. Retract the self-erect cylinder to lift the boom butt and
4M to clear the pin holes in the adapter frame.
11. Push boom butt hinge pins back into the working
position, rotate the keeper plates down into the groove
of the boom butt hinge pins, and install the safety pins.
WARNING
Moving Load Hazard!
The boom butt and 4M may swing away from the crane
when the boom butt hinge pins are disengaged.
Prevent personnel from being struck by the boom butt and
4M:
• Warn all personnel to stand well clear of the boom
butt and 4M.
• Stabilize the boom butt and 4M with taglines.
FIGURE 4-112
Item Description
1 Hand-Held Pin Puller
2 Pin Puller Cage
3 Boom Butt Hinge Pin (qty 2)
4 Keeper Plate (qty 2)
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