Manitowoc Published 08-06-19, Control # 237-09_v2 4-77
MLC165-1 OPERATOR MANUAL SETUP AND INSTALLATION
Remove First Crawlers
See Figure 4-57.
1. Swing the upperworks over the side of the crawler (1,
View A) to be removed.
2. Do not lower the mast below vertical (90°) or it will
interfere with crawler installation
3. Attach owner furnished synthetic lifting slings to the
boom hinge pins.
• Boom hinge pins should be engaged
• Slings can be either basketed or chocked
• Sling length should be at least 15 ft (5 m) long
• Sling capacity is at least 54,000 lb (6 804 kg)
Use caution to prevent slings from being damaged
by edges of boom hinge plates on rotating bed.
4. Lift the MLC165-1 with the assist crane and place hard-
wood blocking (3, View A) under the two corners of the
carbody (2) next to the crawler (1) being removed.
5. To allow crawler removal:
• The blocking must be sized and positioned as
shown in Figure 4-8 on page 4-10
so the carbody is
25-28 in (635-711 mm) above the ground.
• The blocking at each corner must be cable of
supporting at least 52,000 lb (23 587 kg).
6. Lower the MLC165-1 onto the blocking and slacken the
lifting slings.
7. Disconnect the lifting slings from the boom hinge pins.
8. Attach a 3-leg chain sling (View C) — or shackles and
synthetic slings — from the assist crane to the three
lifting lugs on the crawler. The crawler weighs
approximately 33,000 lb (14 969 kg).
9. Remove the collars (4, View D) from both crawler pins
(5).
10. Temporarily store the collars on the storage lugs (6,
View D).
11. Hoist with the assist crane until the lifting slings are taut.
12. Start the engine.
13. Using the carbody control, disengage the corresponding
crawler pins (5, View D).
14. Hoist with the assist crane until the alignment pins (7,
View D) in the crawler (1) disengage the alignment
saddles in the carbody (2).
15. Hoist with the assist crane until the crawler is clear of the
carbody.
The crawler will hang slightly out of level.
16. Lower the crawler onto the trailer until the lifting slings
are slack.
17. Disconnect the lifting slings from the crawler.
18. Secure the crawler to the trailer. See Shipping Crane
Components on page 4-53.
19. Remove the trailer and crawler from the area.
20. Using the carbody control, engage the crawler pins (5,
View D).
21. Remove the collars (4, View D) from the storage lugs (6)
and install them on the crawlers pins (5).
22. Proceed to remove the second crawler.
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