Manitowoc Published 12-05-17, Control # 032-23 4-73
18000 OPERATOR MANUAL SET-UP AND INSTALLATION
19. Fully retract rear jacks.
20. Position jack pads as shown in Figure 4-35
, View B.
21. Swing 180° so mast is over crawler to be removed (View
N).
Swing slowly while watching rear jack pads as they
approach crawler pads. If crawler pads are tight, it
may be necessary to remove jack pads so they don’t
hit crawler pads.
22. Extend rear jacks until jack pads are approximately 2 ft
(0,6 m) off ground.
23. Position jack pads as shown in Figure 4-35
, View A so
they hang freely (parallel with ground). Damage will
occur if this step is not performed.
24. Extend jacks until they are 2-3 in (51-76 mm) from
contacting the ground.
25. Raise mast so assembly block (24, View P) is centered
over crawler.
26. Attach hooks from chain sling (25, View P) to shackles
(26) on crawler — two legs with grab hooks to rear.
27. Position chains between crawler pads as shown in View
P.
28. Hoist and mast up or down as needed so crawler hooks
(19, View Q) disengage carbody pins (20).
If necessary, adjust length of rear chains so crawler lifts
level.
Crawler should be lifted as level as possible — both
front to rear and side to side.
29. Slowly hoist crawler clear of carbody.
30. Place crawler assembly on trailer (View R).
Disconnect chain sling from crawler assembly.
NOTE The crawler connecting pins are shipped in the
retracted position to meet shipping width
requirements.
Remove Second Crawler
Swing is limited to 5° when handling second crawler
after first crawler is removed (see Figure 4-21
, View D).
Repeat steps under Remove First Crawler on page 4-69
to
remove second crawler.
After second crawler is removed, swing only enough to align
rotating bed with carbody and ENGAGE SWING LOCK.
Remove Assembly Block
Reverse steps under Install Assembly Block topic on
page 4-33
.
Store Live Mast
See Figure 4-20 for the following procedure.
Mast assist arms must be raised when lowering live mast.
1. Scroll to MAST ANGLE on digital display to monitor
mast angles during lowering procedure.
2. MAST UP to lower mast to approximately 11° mast
angle (View A).
Mast assist arms will automatically retract and support
mast as mast is lowered.
3. Remove locking pins (5, View B) from live mast straps
(4).
4. Remove pins (6, View B) stored on rotating bed and pin
live mast straps to rotating bed.
5. Fully lower mast (0° mast angle).
6. Store locking pins (5, View B) in live mast straps.
Remove Drum 3 (Whip Line Drum)
Reverse steps under Install Drum 3 topic on page 4-22.
Deploy Front Rotating Bed Jacks
Perform steps 2a through 2d on page 4-12 and steps 3 and 4
on page 4-14
for both front rotating bed jacks.
WARNING
Tipping Hazard
To prevent tipping after second crawler is removed:
• Swing only enough to align rotating bed with carbody.
• Engage swing lock.
Do not attempt to swing any more than 5° to either side of
center during remainder of disassembly procedure.
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