Manitowoc 3900W - Worksheet G - Determining Total Load and Maximum Working Radius from Intermediate Fall Point on Luffing Jib

F2081-9
CAPACITY CHART INFORMATION
Worksheet G – Determining Total Load and Maximum Working Radius From Intermediate Fall Point on Luffing Jib
(see Note 1:)
DESCRIPTION WEIGHT
Component Weights
1 Load Block/Hook and Weight Ball (below intermediate fall point) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
__________
2 Fixed Jib (see Jib Deduct Table in capacity chart) see Note 2: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
__________
3 Load Block/Hook and Weight Ball (below fixed jib point, if installed) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
__________
4 Upper Luffing Jib Point (from capacity chart if noted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
__________
5 Load Block/Hook and Weight Ball (below upper luffing jib point, if installed) . . . . . . . . . . . . . . . . . . . . . . .
__________
6 Load Block/Hook and Weight Ball (below lower luffing jib point, if installed) . . . . . . . . . . . . . . . . . . . . . . .
__________
7 Load Block/Hook and Weight Ball (below lower boom point, if installed) see Note 3: . . . . . . . . . . . . . . . .
__________
8
Total Weight of Slings and Other Lifting Equipment Below Fixed Jib Point, Upper Luffing Jib Point, Lower
Luffing Jib Point, Intermediate Fall Point, and Lower Boom Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
__________
9
Total Weight of Wire Rope Below Fixed Jib Point, Upper Luffing Jib Point, Lower Luffing Jib Point,
Intermediate Fall Point, and Lower Boom Point (see Load Line or Wire Rope Specifications Chart for
weight of wire rope)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
__________
Totals
A Total Component Weights
(ADD items 1-9 above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
__________
B Weight of Load to be Lifted. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
__________
C Total Load to be Lifted (ADD A and B above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
__________
D
Maximum Working Radius
(for Total Load to be Lifted from C above — see
correct capacity chart)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
__________
A922
6, 8
9
5, 8
9
4
7, 8
9
9
1
9
2
3, 8
Note 1: For most applications, weight of luffing jib and
a certain amount of weight below lower luffing
jib point have been included in intermediate fall
capacity determination and do not have to be
added to total load.
See capacity chart for
detailed information
.
Note 2: For most applications, weight of fixed jib and a
certain amount of weight below fixed jib point
have been included in intermediate fall
capacity determination and do not have to be
added to total load.
See capacity chart for
detailed information
.
Note 3: Depending on jib length, some lower boom
point sheaves may have to be removed.
See
capacity chart for detailed information
.
B
8
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