Liebherr LR 1280 - Manual (Page 2)

Dimensions
2 LR 1280
Operating weight
The operating weight includes the basic machine with crawlers, 2 main
winches 33,100 lbs and 66 ft main boom, consisting of A–frame, boom foot
(23 ft), boom head (23 ft), boom extension (20 ft) 188,500 lbs basic
counterweight, 79,400 lbs carbody counterweight and 661,400 lbs hook
block.
Total weight appr. 494,700 lbs
Ground pressure
Ground bearing pressure 16.8 PSI
Basic machine with undercarriage
Equipment
Main boom (No. 2220.xx) max. length 296 ft
High reach (No. 2220.xx and 1916.xx) 391 ft
Luffing jib (No. 1916.xx) max. length 312 ft
Max. combination boom 181 ft and luffing jib 312 ft
Fixed jib (No. 1008.xx) 36 ft – 85 ft
Auxiliary jib 66150 lbs lifting capacity
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Remarks
1. The lifting capacities stated are valid for lifting operation only (corres–
ponds with crane classification according to F.E.M. 1.001, crane group A1)
2. Crane standing on firm, horizontal ground.
3. The weight of the lifting device (hoisting ropes, hook block, shackle etc.)
must be deducted from the gross lifting capacity to obtain a net lifting
value.
4. Additional equipment on boom (e.g. boom walkways, auxiliary jib) must
be deducted to get the net lifting capacity.
5. For max. wind speed please refer to lift chart in operator’s cab or manual.
6. Working radii are measured from centre of swing and under load.
7. The lifting capacities are valid for 360 degrees of swing.
8. Calculation of stability under load is based on 75% tipping load,
ANSI B 30.5 and ISO 4305 Table 2.
9. The structures are calculated according to F.E.M. 1.001 – 1998
(EN 13001–2 / 2004) and tested according to SAE J 987.