Backhoe bucket, With two-piece boom 4.70 m digging envelope, Operating weight and ground pressure – Liebherr R 956 User Manual
Page 26: Digging forces, Buckets
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26
R 956 Litronic
Backhoe Bucket
with Two-piece Boom 4.70 m
Digging Envelope
1
2
3
Stick length
m 2.35
2.90
3.80
Max. digging depth
m 7.70
8.25
9.15
Max. reach at ground level
m 12.35 12.90 13.80
Max. dump height
m 10.15 10.65 11.45
Max. teeth height
m 14.05 14.50 15.30
Operating Weight
and Ground Pressure
Operating weight includes basic machine with two-piece boom 4.70 m,
stick 2.90 m and bucket 2.00 m
3
.
Undercarriage
LC
LC-V
Pad width
mm 500
600
750
500
600
750
Weight
kg 53,150 53,750 55,000 55,250 55,850 57,100
Ground pressure
kg/cm
2
1.12 0.95 0.77
1.17 0.98 0.80
Undercarriage
HD
Pad width
mm 500
600
750
Weight
kg 55,250 55,800 56,600
Ground pressure
kg/cm
2
1.14 0.96 0.76
Optional: heavy counterweight
(heavy counterweight increases the operating weight by 2,000 kg and
ground pressure by 0.04 kg/cm
2
)
Digging Forces
1
2
3
Digging force ISO
kN
248
217
181
t 25.8
22.1
18.6
Breakout force ISO
kN
313
313
313
t 31.9
31.9
31.9
Breakout force max. ISO
345 kN (35.2 t)
Buckets
Machine stability per ISO 10567* (75 % of tipping capacity)
LC-Undercarriage
LC-V-Undercarriage
HD-Undercarriage
Stick length (m)
Stick length (m)
Stick length (m)
2.35
2.90
3.80
2.35
2.90
3.80
2.35
2.90
3.80
mm
m
3
kg
1,350 1.65 2,100
1,550 2.00 2,250
1,750 2.35 2,450
1,950 2.70 2,650
1,350 1.65 2,450
1,550 2.00 2,650
1,750 2.35 2,850
1,950 2.70 3,100
* Indicated loads are based on ISO 10567 max. stick length, lifted 360° on firm
1)
Standard bucket with Liebherr teeth Z 70 (appropriate for materials up to classification 5, according to VOB, Section C, DIN 18300)
2)
HD bucket with Liebherr teeth Z 70 (appropriate for materials above classification 6, according to VOB, Section C, DIN 18300)
Other backhoes available on request
Max. material weight
X
= ≤ 2.2 t/m
3
,
Y
= ≤ 1.8 t/m
3
,
V
= ≤ 1.5 t/m
3
,
y
= ≤ 1.2 t/m
3
,
v
= not authorized
Cutting
width
Capacity
ISO 7451
Weight
STD
1)
HD
2)
45
40
35
30
25
20
15
10
5
0 ft
R0062
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
16
13
14
15
m
14
15
13 12 11 10 9 8 7 6 5 4 3 2 1 0 m
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
ft
50
1
2
3