20
33 ft – 56 ft luffing bi-fold boom extension with inserts
(Mode B) (intermediate offsettable angles)
THIS CHART IS ONLY A GUIDE AND SHOULD NOT BE USED TO OPERATE THE CRANE.
The individual crane’s load chart, operating instructions and other instructional plates must be read and understood prior to operating the crane.
Feet
72 ft LENGTH (56 ft + 1 INSERT)
88 ft LENGTH (56 ft + 2 INSERTS)
5° - 20°
OFFSET
20° - 40°
OFFSET
5° - 20°
20° - 40°
OFFSET
#0095 #1095
70 6090
75 5920 5000
80 5750 5340 5000
85 5600 5260 5000 4460
90 5460 5100 4790 4460
95 5260 4800 4420 4150
100 4910 4520 4090 3860
105 4610 4270 3790 3600
110 4310 4020 3490 3340
115 3840 3790 3230 3110
120 3180 3570 2980 2890
125 2570 3290 2720 2680
130 2020 2680 2160 2480
135 1510 2120 1640 2300
140 1040 1600 1170 1780
145 1130 1300
Min. boom
angle for
indicated
length (no
load)
52° 52° 56° 56°
Max. boom
length at 5°
boom angle
(no load)
76.7' 63.7'
#LMI operating code. Refer to LMI manual for operating instructions.
A6-829-103526
Pounds
37.3 ft – 141.7 ft1 or 2
16 ft inserts
22,000 lb
33 ft – 56 ft
100%
24 ft spread
360˚
NOTES:
1. All capacities above the bold line are
based on structural strength of boom
extension and do not exceed 85% of
tipping loads, in accordance with SAE
J-765.
2. The 56 ft luffing folding boom
extension may be used for single line
lifting service only
WARNING: Lifting with the 33
ft extension base, with the 23 ft
extension fly either erected or folded
along side of extension base, or with
either one or two 16 ft insert sections
installed, is strictly prohibited.
3. WARNING: Operation of this
machine with heavier loads than the
capacities listed is strictly prohibited.
Machine tipping with boom
extension occurs rapidly and without
advance warning.
4. The loads for luffing depend on the
angle of the main boom, angle of
the boom extension and dynamic
working pressure of the luffing
cylinder for the boom extension.
5. When lifting over the main boom
nose with 56 ft extension erected and
inserts, the outriggers must be fully
extended and vertical jacks set only.
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