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

Page 22: Front shovels

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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

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