Liebherr R 976 User Manual

Crawler excavator R 976

Operating Weight with Backhoe Attachment: 85,300 – 95,500 kg Operating Weight with Shovel Attachment: 90,800 – 92,600 kg Engine Output: 400 kW / 544 HP Bucket Capacity: 2.00 – 6.60 m³ Shovel Capacity: 4.40 – 5.60 m³

Equipment

•Caststeelelements

•Greaterresistancetostresses

•Longerservicelife

•Safetycheckvalvesforstickandboom cylinderswithintegratedregeneration forlessfuelconsumption

Tools

•Differentlevelsofprotectiontosuit thedifferentareasofapplication

•NewLiebherrZ-typetoothsystem

R 976 Litronic

Operator’s cab

•Newcomfortableandergonomicdesign

•7”highdenitioncolourtouchscreen

•Widerthanthecabinthesmallexcavatorsrange

•Bullet-proofpanelsatthefrontand intheroofasstandard

•OptionalFOPSandFGPSprotectiveguards

Accessibility

•Maintenanceplatformin theenginecompartment

•Broad,anti-slipsidecatwalksasstandard

•Newlydesignedundercarriagesteps foralongerservicelife

Undercarriage

•Robuststructurethankstothemorerigidprole

•Improvedself-cleaningcapacity

•Moldedtwo-toothsprocketforalongerservicelife

•Twotypesofundercarriageavailable:anHDxed-track gaugeandLC-Vvariable-trackgauge

R 976 Litronic

Equipment

•Caststeelparts

•Parallelkinematicsforpowerfulandregulardigging

•Bucketcylinderspositionedundertheequipment forbetterprotectionagainsttheelements

•Safetyvalvesonboomcylinderforpipe burstprotection

Buckets

•Thefrontshovelistheperfectshapefordiggingdeep intothematerialandforahighllingrate

•Severallevelsofprotectionforthefrontshovel, dependingonrequirements

R 976 Litronic

Operator’s cab

•Newcomfortableandergonomicdesign

•7”high-resolutioncolourtouchscreen

•Widerthanthecabinthesmallexcavatorsrange

•Bullet-proofpanelsatthefrontandintheroofasstandard

•OptionalFOPSandFGPSprotectionguards

•Operator’scabwithaxedriserforafull viewovertheworkarea

R 976 Litronic

Technical Data

Engine

Rating per ISO 9249

��

Model

��

Type Bore/Stroke Displacement Engine operation

Exhaust gas treatment

��

Cooling

Air cleaner

Fuel tank Urea tank Electrical system Voltage Batteries Starter Alternator Engine idling Motor management

��

400 kW (544 HP) at 1,800 RPM Liebherr D 9508 A7 SCR 8 cylinder V engine 128/157 mm

16.16 l 4-stroke diesel

Common-Rail

SCR system (Selective Catalytic Reduction)

emission standard stage IIIB / Tier 4i

water-cooled and integrated motor oil cooler,

after-cooled and fuel cooled

dry-type air cleaner with pre-cleaner, primary and

safety elements 1,498 l 140 l

24 V 2 x 180 Ah/12 V 24 V/7.8 kW three phase current 28 V/100 A sensor-controlled connection to the integrated excavator system

controlling via CAN-BUS to the economical

utilisation of the service that is available

Hydraulic System

Hydraulic pump for attachment and travel drive Max. flow Max. pressure Pump regulation

Hydraulic pump for swing drive

Max. flow Max. pressure Hydraulic tank Hydraulic system Hydraulic oil filter

Hydraulic oil cooler

MODE selection

RPM adjustment

Tool Control

��

two Liebherr variable flow, swash plate pumps 2 x 496 l/min. 350 bar electro-hydraulic with electronic engine speed

sensing regulation, pressure compensation, flow

compensation, automatic oil flow optimizer

reversible, variable flow, swash plate pump,

closed-loop circuit 315 l/min. 350 bar 536 l

1.134 l 2 full flow filters in return line with integrated fine

filter area (5 µm) compact cooler for water cooler, after-cooler, fuel

cooler and transmission pump oil, sandwiched

with cooler for oil and condenser of air-condition-

ing with hydrostatically controlled fan drives adjustment of engine and hydraulic performance

via a mode pre-selector to match application for

especially economical and environmentally

friendly operation or for maximum digging perfor-

mance and heavy-duty jobs stepless adjustment of engine output via RPM at

each selected mode 10 preadjustable pump flows and pressures for

add-on tools

Hydraulic Controls

Power distribution

Flow summation Closed-loop circuit Servo circuit Attachment and swing Travel

– speed pre-selection Additional functions

��

via control valves in single block with integrated

safety valves to boom and stick for uppercarriage swing drive electro-hydraulic control proportional via joystick levers – proportional via foot pedals or removable

handlevers

via foot pedals or joystick toggle switch

Swing Drive

��

Drive by

Transmission Swing ring

Swing speed Swing torque Holding brake Option

��

Operator’s Cab

��

Cab

Operator’s seat

Control system Operation and displays

Air-conditioning

Noise emission ISO 6396 2000/14/EC

��

Undercarriage

Version

��

HD LC-V Drive

Transmission Travel speed

Net drawbar pull on crawler Track components Track rollers/Carrier rollers

Tracks Track pads Digging locks

Brake valves Lashing eyes

��

Attachment

��

Type

Hydraulic cylinders

��

Pivots Lubrication

Hydraulic connections

��

Bucket

��

Liebherr swash plate motor with integrated brake

valves Liebherr compact planetary reduction gear Liebherr, sealed single race ball bearing swing

ring, internal teeth 0 – 5.9 RPM stepless 295 kNm wet multi-disc (spring applied, pressure released) pedal controlled positioning brake

work headlights integrated in the ceiling, a door

with a side window (can be opened on both

sides), large stowing and depositing possibilities,

shock-absorbing suspension, sounddamping

insulating, tinted laminated safety glass, separate

window shades for the sunroof window and wind-

screen, 12 V plug, storage bins, lunchbox, cup

holder

Liebherr-Comfort seat, airsprung with automatic

weight adjustment, vertical and horizontal seat

damping including consoles and joysticks. Seat

and armrests adjustable separately and in combi-

nation, seat heating as standard arm consoles, swinging with the seat large high resolution colour display with selfexpla-

natory operation via touch screen, video, versatile

adjusting, control and monitoring facilities, e.g.

climate control, implement and tool parameters standard automatic air-conditioning, ambient air

function, fast de-icing and demisting at the press

of a button, air vents can be operated via a menu;

ambient air and fresh air filters can be easily

replaced and are accessible from the outside;

heating- cooling unit, designed for extreme out-

side temperatures, sensors for solar radiation,

inside and outside temperatures

LpA (inside cab) = 71 dB(A) LWA (surround noise) = 109 dB(A)

gauge 3,600 mm gauge 3,590 mm Liebherr swash plate motors with integrated

brake valves on both sides Liebherr planetary reduction gears low range – 2.7 km/h

high range – 4.3 km/h

��

538 kN D 9 G, maintenance-free

��

HD: 8/2

LC-V: 9/3 sealed and greased double grouser wet multi-discs (spring applied, pressure

released) outside the travel motor integrated

combination of resistant steel plates and cast

steel components Liebherr cylinders with special seal-system,

shock protection sealed, low maintenance automatic central lubrication system (except link

and tilt geometry) pipes and hoses equipped with SAE split-flange

connections standard equipped with Liebherr tooth system

6 R 976 Litronic

Dimensions

L U

HD mm LC-V mm A 3,565 3,565 A1 4,355 4,355 A2 4,730 4,730 C 3,695/3,890* 3,835/4,030* D 4,515 4,515 E 4,640 4,640 H 3,725 3,865 K 1,620 1,755 L 4,770 5,160 P 1,460 1,495 Q 682 955 S 3,600 2,750**/3,590 U 5,955 6,335 N 500 600 750 500 600 750 B 4,290 4,290 4,350 3,490** 3,490** 3,500** G 4,540 4,540 4,540 3,870** 3,870** 3,870** Z 7,490 7,680

* with FOPS top guard ** transport position

B G

HD-Undercarriage Stick Mono Mono Mono Length Boom Boom Boom

7.20 m 8.60 m 10.50 m

m mm mm mm V 2.90 8,450 – –

3.30 8,200 9,950 12,050

3.80 8,100 9,850 11,900

4.70 7,950 9,650 11,700

5.80 – 9,650 11,550 W 2.90 5,100 – –

3.30 5,250 5,450 5,750

3.80 5,550 5,600 5,900

4.70 6,050 6,000 6,100

5.80 – 6,800 6,800 X 2.90 13,800 – –

3.30 13,500 14,900 16,800

3.80 13,400 14,750 16,650

4.70 13,150 14,550 16,450

5.80 – 14,150 16,150

LC-V-Undercarriage Stick Mono Mono Mono Length Boom Boom Boom

7.20 m 8.60 m 10.50 m

m mm mm mm V 2.90 8,600 – –

3.30 8,350 10,100 12,200

3.80 8,200 10,000 12,050

4.70 8,050 9,800 11,850

5.80 – 9,750 11,700 W 2.90 5,150 – –

3.30 5,350 5,500 5,850

3.80 5,600 5,700 6,000

4.70 6,150 6,000 6,200

5.80 – 6,750 6,800 X 2.90 13,800 – –

3.30 13,500 14,900 16,800

3.80 13,450 14,750 16,650

4.70 13,250 14,550 16,500

5.80 – 14,250 16,250

R0013

R 976 Litronic 7

Backhoe Bucket

with Mono Boom 7.20 m

-10

-15

-20

-25

-30

-1

-5

-2

-3

-4

-5

-6

-7

-8

-9

-10

6789101112131415

R0014

0 m1

2345

5101520253035404550

0 ft

Digging Envelope 1 2 3 4

Stick length m 2.90 3.30 3.80 4.70

Max. digging depth m 7.60 8.00 8.50 9.40 Max. reach at ground level m 12.35 12.75 13.20 14.10 Max. dump height m 8.10 8.35 8.60 9.05 Max. teeth height m 12.45 12.70 12.95 13.40

Digging force ISO kN 390 361 329 284 t 39.8 36.8 33.5 28.9 Breakout force ISO kN 485 485 485 485 t 49.4 49.4 49.4 49.4

Operating Weight and Ground Pressure

Operating weight includes basic machine with mono boom 7.20 m, stick 2.90 m and bucket 5.20 m

Undercarriage HD LC-V

Pad width mm 500 600 750 500 600 750 Weight kg 85,300 86,000 87,100 90,400 91,200 92,300 Ground pressure kg/cm

Optional: heavy counterweight (heavy counterweight increases the operating weight by 1,900 kg and ground pressure by 0.04 kg/cm

(4,600 kg).

1.65 1.38 1.12 1.62 1.36 1.10

)

Buckets Machine stability per ISO 10567* (75 % of tipping capacity)

HD-Undercarriage

Cutting

width

Capacity

ISO 7451

mm m

1,800 3.80 4,000 1,950 4.30 4,200

2,150 4.80 4,450 2,300 5.20 4,600

STD

2,300 5.80 4,800 2,600 6.60 5,100 1,800 3.60 4,400 1,950 4.10 4,750

2,150 4.60 5,050 2,300 5.20 5,400

2,300 5.60 5,550 2,400 6.20 5,900 1,950 4.20 5,250

2,150 4.70 5,550 2,300 5.20 5,850

HDV

2,300 5.70 6,400

Weight

2.90 3.30 3.80 4.70 2.90 3.30 3.80 4.70

X X X Y X X X Y X X X Y X X X Y X X Y V X X Y V Y Y Y y X X Y y Y Y V y Y Y V y V V y v V V y v

X X X Y X X X Y X X X V X X X Y X X Y V X X Y V Y Y V y Y Y Y y Y V V y Y Y V y V V y v V V y v

X X X v X X X v Y Y Y v X X Y v Y Y V v Y Y V v V V y v V V y v

* Indicated loads are based on ISO 10567 max. stick length, lifted 360° on firm

Standard bucket with Liebherr teeth Z 90

HD bucket with Liebherr teeth Z 90

HDV bucket with Liebherr teeth Z 90

Other backhoes available on request

Max. material weight

= ≤ 2.2 t/m3,

Stick length (m)

= ≤ 1.8 t/m3,

= ≤ 1.5 t/m3,

= ≤ 1.2 t/m3,

LC-V-Undercarriage

Stick length (m)

= not authorized

8 R 976 Litronic

Lift Capacities

with Mono Boom 7.20 m

Stick 2.90 m

3.0 m 4.5 m 6.0 m 7.5 m 9.0 m 10.5 m 12.0 m 13.5 m Under m carriage m

12.0

LC-V

10.5

LC-V

9.0

LC-V

7.5

LC-V

6.0

LC-V

4.5

LC-V

3.0

LC-V

1.5

LC-V

– 1.5

LC-V

– 3.0

LC-V

– 4.5

LC-V

– 6.0

LC-V

– 7.5

LC-V

– 9.0

LC-V

23.7* 23.7*

23.5* 23.5*

21.6* 21.6* 21.3* 21.3*

21.6* 21.6* 21.2* 21.2*

21.8* 21.8* 19.1 20.4* 19.1 20.2*

21.9* 21.9* 20.0 20.8* 19.7 20.2*

27.4* 27.4* 23.3* 23.3* 18.9 21.1* 16.6 19.9*

27.7* 27.7* 23.5* 23.5* 19.7 21.1* 17.2 19.9*

31.5* 31.5* 24.1 25.3* 18.3 22.0* 15.2 19.5

31.9* 31.9* 25.1 25.5* 19.1 22.0* 15.8 20.3*

31.6 35.1* 22.9 27.3* 17.6 22.9 14.4 18.7

32.9 35.4* 23.9 27.5* 18.4 23.0* 15.1 20.6*

30.2 36.9* 22.0 28.6* 17.1 22.3 14.3 18.6

31.6 37.0* 23.0 28.7* 17.9 23.7* 15.0 20.8*

29.6 36.7* 21.4 28.6 16.7 21.9 14.7 19.2

31.0 36.6* 22.5 28.8* 17.5 23.5* 15.6 20.9*

38.5* 38.5* 29.5 34.9* 21.3 27.8* 16.6 21.8 15.9 20.8

40.4* 40.4* 30.9 34.7* 22.3 27.6* 17.5 22.1* 16.9 21.0*

40.6* 40.6* 38.8* 38.8* 29.8 31.3* 21.5 24.8* 18.4 20.6*

42.5* 42.5* 38.2* 38.2* 30.8* 30.8* 22.6 24.4* 19.6 20.6*

30.4* 30.4* 24.6* 24.6* 19.1* 19.1*

29.5* 29.5* 23.7* 23.7* 18.9* 18.9*

6.4

8.0

9.0

9.7

10.1

10.3

10.2

9.9

9.3

8.5

7.1

Stick 3.30 m

3.0 m 4.5 m 6.0 m 7.5 m 9.0 m 10.5 m 12.0 m 13.5 m Under m carriage m

12.0

LC-V

10.5

LC-V

9.0

LC-V

7.5

LC-V

6.0

LC-V

4.5

LC-V

3.0

LC-V

1.5

LC-V

– 1.5

LC-V

– 3.0

LC-V

– 4.5

LC-V

– 6.0

LC-V

– 7.5

LC-V

– 9.0

LC-V

Height Can be slewed though 360° In longitudinal position of undercarriage Max. reach * Limited by hydr. capacity

The load values are quoted in tons (t) at stick end (without bucket), and may be swung 360° on firm and even ground. Adjacent values are valid forthe undercarriage when in the longitudinal position. Capacities are valid for 600 mm wide double grouser pads. Indicated loads are based on ISO10567 standard and do not exceed 75 % of tipping or 87 % of hydraulic capacity (indicated via *). Without bucket cylinder, link and lever the liftcapacities will increase by 1,300 kg. Lifting capacity of the excavator is limited by machine stability and hydraulic capacity. According to European Standard, EN 474-5: In the European Union excavators have to be equipped with an overload warning device, a load diagram and automatic safety check valves on hoist cylinders and stick cylinder(s), when they are used for lifting operations which require the use of lifting accessories.

20.1* 20.1*

19.9* 19.9*

20.3* 20.3* 18.2* 18.2*

20.3* 20.3* 18.1* 18.1*

20.8* 20.8* 19.4 19.8* 17.4* 17.4*

20.9* 20.9* 19.8* 19.8* 17.3* 17.3*

26.0* 26.0* 22.4* 22.4* 19.0 20.3* 15.6 17.1*

26.3* 26.3* 22.5* 22.5* 19.8 20.3* 16.2 17.1*

30.3* 30.3* 24.4 24.5* 18.4 21.3* 14.3 17.3*

30.6* 30.6* 24.7* 24.7* 19.2 21.4* 15.0 17.4* 15.0 17.4*

32.1 34.2* 23.2 26.7* 17.7 22.5* 14.0 18.1 13.7 17.7

33.4 34.5* 24.1 26.9* 18.5 22.6* 14.7 19.8* 14.4 18.1*

30.5 36.5* 22.1 28.3* 17.1 22.3 13.7 17.7 13.5 17.6

31.8 36.7* 23.1 28.4* 17.9 23.4* 14.4 20.0* 14.2 19.3*

29.7 36.9* 21.5 28.6 16.7 21.9 13.9 18.1

31.1 36.9* 22.5 28.8* 17.5 23.6* 14.7 20.0*

36.8* 36.8* 29.4 35.6* 21.2 28.2* 16.5 21.7 14.9 19.5

38.3* 38.3* 30.9 35.4* 22.3 28.0* 17.4 22.6* 15.8 20.2*

36.6* 36.6* 41.2* 41.2* 29.6 32.5* 21.3 25.8* 16.9 20.0*

38.2* 38.2* 40.7* 40.7* 31.1 32.1* 22.4 25.5* 18.1 20.0*

33.5* 33.5* 26.8* 26.8* 20.1* 20.1* 19.1* 19.1*

32.7* 32.7* 26.1* 26.1* 19.2* 19.2* 18.9* 18.9*

7.0

8.4

9.4

10.1

10.5

10.6

10.3

9.7

8.9

7.7

R 976 Litronic 9

+ 19 hidden pages

Liebherr R 976 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual