Manitowoc Published 08-12-19, Control # 224-13_v2 4-63
MLC650 OPERATOR MANUAL SET-UP AND INSTALLATION
Installing the First Crawler
The crawlers may be installed using the live mast or an assist
crane.
NOTE: Verify that the carbody distance (8) to the ground is
approximately 722 mm (28 in).
See Figure 4-50
for the following procedure:
1. Position the trailer (9) carrying the crawler along the
desired side of the crane.
NOTE: The side of the crawler with one lifting link must
face the crane.
2. Remove the tie downs and blocking securing the crawler
to the trailer.
3. Extend the self-erect cylinder rod to the maximum
length. Attach a
SH 1 shackle (1) to the rod end and a
SL 5 sling
(2).
4. Attach the SL 1 (3) sling and two SL 2 (4) slings to the
SL 5 sling attached to the self-erect cylinder rod end
with the SH 1 shackle.
NOTE: Reference the lifting sling and shackle chart found
in Figure 4-7 on page 4-6
.
5. Swing the upperworks so the self-erect cylinder and the
slings are centered over the crawler.
6. Install four chain slings (7) from the crawler frames to the
crawler shoes to prevent excessive crawler track sag.
Some sag must be allowed to prevent interference
between the carbody and crawler pads.
7. Remove safety pins and pins (5), rotate the crawler
lifting brackets (6a) from the stored position to the
working position, and install pins and safety pins.
8. Remove the hitch pins and pins from the outside crawler
lifting brackets.
9. Attach two SL 2 slings (4) to the outside crawler lifting
brackets and place the pins through each sling and
bracket. Install the hitch pins.
10. Remove the hitch pin and pin from the inside crawler
lifting bracket.
11. Insert the SL 1 sling (3) into the bracket, install the pin
through the sling and bracket, and install the hitch pin.
12. Retract the self-erect cylinder to lift the crawler from the
trailer.
NOTE: There will be approximately 8° of tilt toward the
carbody.
13. Remove the trailer.
NOTE: Lubricate Crawler-to-Carbody Machined Surfaces:
Each time the crawlers are assembled to the carbody,
thoroughly clean and grease all machined surfaces on the
crawlers and the carbody—surfaces are marked with an
asterisk (*) in Figure 4-51
.
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