Manitowoc Published 08-12-19, Control # 224-13_v2 4-185
MLC650 OPERATOR MANUAL SET-UP AND INSTALLATION
Legend for Figure 4-142
See Figure 4-142 for the remaining steps.
5. Remove the pin and hair-pin cotter (4) from the live mast
keepers (5b). Open the live mast keepers (5a) on the
rotating bed to allow the live mast hinge (6) to disengage
the rotating bed pockets.
6. Using an assist crane, attach SL 6 slings (2) to the live
mast lift points (1) using SH 2 shackles (3). Lift slightly
until a slight tension is felt on the slings.
7. Remove the keeper pins or plates (10a or 10b).
8. Install the pin puller cage (12) and disengage the two
hoist drum operating pins (11) using the hand-held pin
puller.
See "Connect Hand-Held Pin Puller" on page 4-37
for
information on using the pin puller.
9. Remove the keeper pin (7b) from the gantry assembly
(7) and place the keeper pin (7a) in the stored position.
10. Remove the hitch pin and collar (9).
11. Using the hand-held pin puller, remove the backhitch/
gantry operating pins (8).
12. Remove the retention bracket (13a) from the stored
position and place in the retention bracket (13b) working
position.
13. Raise the live mast slightly from the rotating bed.
Observe the area around the live mast hoist drum as it is
being raised from the rotating bed.
NOTE: As the mast assembly is being lifted, it will tilt
forward approximately 4°.
14. Once the live mast is in the shipping position, remove
the retention bracket (13b) from the working position and
place in the retention bracket (13a) stored position.
15. Insert the operating pins (8) into the holes that they were
removed from and secure them with the keeper pins (7)
or hitch pins and collars (9).
16. Remove and store the pin puller cages (12) and install
the hoist drum keeper pins (10a) or bars (10b).
Item Description
1 Live Mast Lift Point (qty 4)
2 SL 6 Sling – 5 m (16.40 ft), 31 751 kg (70,000 lb) (qty 4)
3 SH 2 Shackle – 17 t (18.70 USt) (qty 4)
4 Pin and Hair-Pin Cotter (qty 4)
5a Live Mast Keeper (open) (qty 2)
5b Live Mast Keeper (closed) (qty 2)
6Live Mast Hinge
7 Gantry Assembly
7a Keeper Pin (stored position)
7b Keeper Pin (working position)
8 Backhitch/Gantry Operating Pin (qty 4)
9 Hitch Pin and Collar
10a Hoist Drum Keeper Pin
10b Hoist Drum Keeper Bar
11 Hoist Drum Operating Pin
12 Pin Puller Cage
13a Retention Bracket (stored position)
13b Retention Bracket (working position)