Manitowoc Published 04-06-18, Control # 231-14 4-107
MLC650 VPC-MAXâ„¢ OPERATOR MANUAL SET-UP AND INSTALLATION
Attaching the Equalizer to the Fixed Mast
Top
See Figure 4-88 for the following procedure.
1. Lower the fixed mast (1) until the equalizer (2) is near
the ground.
2. Remove the rope guard (3, View A).
3. Attach four SL 4 slings (4) from the assist crane to the
four lifting lugs (5) on the equalizer (2).
4. Raise the equalizer to horizontal with the assist crane
while paying out the MLC650 boom hoist wire rope.
5. While following with the assist crane, lower the fixed
mast onto blocking (6) that is a minimum height of
900 mm (35.43 in) (1).
Payout the boom hoist wire rope as needed so the
equalizer clears the end of the mast as it lowers.
6. Lower the live mast so the fixed mast straps are resting
in the strap supports on the mast sections.
7. Remove the locking pins (7, View A) and the clevis
pins (8) from the equalizer (2).
8. Spool the wire rope onto the boom hoist drum in the
mast butt while performing the next step.
9. Using the assist crane, install the equalizer (2, View B)
onto the end of the fixed mast top.
10. Install the clevis pins (8, View B) and the locking pins (7)
11. Disconnect the SL 4 slings (4) from the equalizer.
12. Reinstall the rope guard (3, View A).
13. Remove the hand-held taglines from the counterweight
straps.
Item Description
1 Fixed Mast
2 Equalizer
3 Rope Guard with Cotter Pins
4 SL 4 slings – 3,80 m (12.50 ft),
11 340 kg (25,000 lb)
5 Lifting Lug (qty 4)
6 Blocking — 900 mm (35.43 in)
7 Locking Pin (qty 2)
8 Clevis Pin (qty 2)
FIGURE 4-88
View A
View B
CAUTION
150° Maximum
CAUTION
Avoid Mast Stop Damage
Do not lower the live mast below 150° maximum until the
mast stops are lowered (page 4-109
). Otherwise, the
mast stops will hit the live mast possibly resulting in
damage.
CAUTION
Avoid Wire Rope Damage
Remove the rope guard (3) and do not reinstall it until after
the equalizer (2) is stored on the mast top.
The wire rope can be damaged if this step is not taken.
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