Manitowoc 777 User Manual

Reference Only
Manitowoc Published 10-01-12, Control # 044-05 4-15
777 OPERATOR’S MANUAL SET-UP AND INSTALLATION
4
3. If crane will be equipped with Series-2 counterweight,
install carbody counterweights as follows, before
installing upper counterweight. If not, go to step 4.
a. Hook onto carbody counterweight with chain sling
and lift into position at rear end of carbody — lift at
four lifting lugs (Figure 4-9, View A).
b. Boom, swing, and hoist as required to engage slots
in counterweight with lugs on carbody (Figure 4-9,
View B).
c. Lower counterweight and disconnect chain sling.
d. Install pins (Figure 4-9, View B) to connect carbody
counterweight to carbody.
e. Swing 180° and repeat steps 3a – 3d for front
carbody counterweight.
NOTE: Use the boom hoist control in cab for steps 4 – 11.
4. Raise boom until mast is vertical.
5. Disconnect counterweight lifting pendants from storage
position on mast (Figure 4-9, View D). Same pins are
used in step 7.
6. Raise boom butt until lifting pendants can be connected
to counterweight lifting links (Figure 4-9, View C).
7. Pin counterweight lifting pendants to links (Figure 4-9,
View E).
8. Lower boom butt until pivot frame is near vertical
(Figure 4-9, View F).
9. Unhook counterweight handling pendants from storage
position (Figure 4-9, View G).
10. Fold counterweight handling pendant storage brackets
to storage position (Figure 4-9, View H).

Manitowoc 777 Specifications

General

Brand	Manitowoc
Model	777
Category	Construction Equipment
Language	English