Manitowoc MLC300 - Page 177

Manitowoc Published 11-20-19, Control # 234-19 4-31
MLC300 OPERATOR MANUAL SETUP AND INSTALLATION
3
1
4
See Figure 4-25 for the following procedure.
7. If the live mast will be installed directly onto the crane
from the trailer, proceed with the remaining steps.
8. Lower the live mast package so the stands (5, View A)
and the boom hoist (2) frame are firmly contacting the
ground or other foundation.
9. If desired, install blocking between the boom hoist (2)
frame and the ground/foundation.
10. Remove and store the mast hinge support (4):
a. Support the mast hinge support (4, View B) with the
forks from a forklift. The support weighs 82 kg (181
lb).
b. Remove the retaining pins (9A, View A) and the pins
9B) with shims (9C) from the shipping position and
store the pins in the mast hinge support (4, View B).
c. Using the forklift, lift the mast hinge support (4)
away from the live mast (1).
d. Remove the hair-pin cotters (14, View F) from the
pins (15) on the mast hinge support (4).
e. Using the forklift, lift the mast hinge support (4) into
position on the right outboard side of the 12 m (39.4
ft) insert (13).
f. Engage the pins (15) with the lugs (16) on the insert
(13).
g. Install the three hair-pin cotters (14).
11. Store the stands (5):
a. Lift the live mast package with the assist crane so
the stands (5, View E) are just clear of the ground.
b. Remove the pins (11, View E) to unpin the struts
(10) from the stands (5).
c. Remove the pin (12, View E) from the end of each
strut (10).
d. Pin the struts (10, View C) to the underside of the
live mast (1) with the pins (12).
e. Pin the stands (5, View D) to the underside of the
live mast (1) with the pins (11).
Item Description
4 Mast Hinge Support
13 12 m (39.4 ft) Insert with Sheaves
14 Hair-Pin Cotter (3)
15 Pin (3)
16 Lug (3)
Figure 4-25 continued
View F
(3 places)