Front shovel, Digging envelope, Operating weight and ground pressure – Liebherr R 976 User Manual
Page 22: Front shovels

22
R 976 Litronic
Front Shovel
0 m
0
-1
-2
-3
-4
10
12
8
6
4
2
1
11
9
7
5
3
0
-5
-10
35
30
m
R0018
T
ft
25
20
15
10
5
2
4
5
10
15
20
25
30
35
6
8
10
1
3
5
7
9
11
0 ft
Digging Envelope
Max. reach at ground level
9.40 m
Max. dump height
7.80 m
Max. crowd length
3.90 m
Bucket opening width T
1,825 mm
Max. crowd force
690 kN/70.4 t
Max. crowd force at ground level
490 kN/50.0 t
Max. breakout force
500 kN/51.0 t
Operating Weight
and Ground Pressure
Operating weight includes basic machine with cab elevation 800 mm,
shovel attachment and front shovel 5.10 m
3
(9,100 kg), level II.
Undercarriage
HD
Pad width
mm 500
600
750
Weight
kg 90,800 91,500 92,600
Ground pressure
kg/cm
2
1.75
1.47
1.19
Level I: For non-abrasive materials, such as limestone without flint inclusion, shot material or easily breakable rock,
i.e., deteriorated rock, soft limestone, shale, etc.
Level II: For pre-blasted heavy rock, or deteriorated, cracked material (classification 3 to 4, accord. to DIN 18300)
Level III: For highly-abrasive materials such as rock with a high silica content, sandstone etc.
Max. material weight
X
= ≤ 2.2 t/m
3
,
Y
= ≤ 1.8 t/m
3
,
V
= ≤ 1.65 t/m
3
Front Shovels
Cutting
width
Capacity
ISO 7451
Weight
Wear kit
level
HD-Undercarriage
Shovel Attachment
mm
m
3
kg
2,300
4.40 8,300
II
X
2,300
4.40 9,150
III
X
2,700
5.10 8,450
I
Y
2,700
5.10 9,100
II
Y
2,700
5.10 10,150
III
Y
2,700
5.40 9,900
III
V
2,700
5.60 8,750
I
V
2,700
5.60 9,450
II
V