r992 gb tb .pdf



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F
R 992
litronic

Technical Description
Hydraulic Excavator

`

Operating weight with backhoe attachment 138,8 – 143,0 t
Operating weight with shovel attachment 141,2 – 146,3 t
Engine output 575 kW / 782 HP
Bucket capacity 3,70 to 9,50 m3
Shovel capacity 7,00 to 12,00 m3

litronic

`
– the total “system” comprised of intelligent
electronics and functional hydraulics – controls, regulates and coordinates all key systems of the excavator.
Powerful – turbo-charged and after-cooled 12 cylinder
diesel engine, with direct injection and low operating
RPM.
Productive – optimum utilization of available engine
output via electronic engine speed sensing pump regulation. Increased work speed through pump flow summation.
Operating safety – the electronic engine-speed-sensing
control protects the engine from overload. Pressure –
and flow compensation eliminate unnecessary oil circulation and consequently avoid excess heat as well as
component wear.

Comfortable – large well equipped, air conditioner and
sound insulated cab. Seat and joystick console independently adjustable to individual operator’s size and
weight.
Environmentally sound – low noise and exhaust emission. Optional: Bio degradable oil.
Easy service – clear and easy access to all components.
Large catwalks, steps and platforms. Sealed attachment pivots, central lubrication system and extended
service intervals reduce maintenance costs.
Versatile – different lengths of gooseneck booms,
assortment of sticks and an extensive variety of
buckets, bottom dump shovels and grapples provide
application versatility.
Economical – the combination of all the above, results in
top performance at low operating costs.
`
This is
.

litronic

The Better Machine.

Engine
Cummins diesel engine
Rating per
DIN/ISO 3046-1
Model
Type
Displacement
Bore/Stroke
Air cleaner
Fuel tank
Electrical system
Voltage
Batteries
Alternator
Engine idling
Air system

Swing Drive
575 kW/782 HP at 1900 RPM
reduced to 492 kW/668 HP at
1800 RPM
VTA 28 C 800
12 cylinder V-engine, water-cooled,
direct injection, turbo-charged,
after-cooled
28 l
140/152 mm
dry-type air cleaner with automatically dust ejector, primary
and safety elements
1780 l
24 V
2 x 170 Ah/12 V
24 V/75 Amp
sensor controlled
1 cylinder compressor, maintenance-free, pressure regulator,
anti-freeze pump

Hydraulic motor
Gear
Swing ring
Swing speed
Swing torque
Swing-Holding brake

Uppercarriage
Design
Attachment mounting
Catwalks

Hydraulic pumps
for attachment and
travel drive
Max. flow
Max. hydraulic
pressure
Pump regulation
Hydraulic pump
for swing drive
Max. flow
Max. hydraulic
pressure
Hydraulic tank
pressurization
Hydraulic tank capacity
Hydraulic system capacity
Hydraulic oil filter
Hydraulic oil cooler
Electronic engine
speed sensing
Lubrication

3 variable flow axial piston pumps
2 x 555 l/min + 1 x 318 l/min
320 bar
Electro-hydraulic, pressure compensation, flow compensation,
automatic oil flow optimizer
1 reversible swash plate pump,
closed-loop circuit
450 l/min

torque resistant modular design
upper frame
parallel length girders
on both sides of the upper

Operator’s Cab
Design

Operator’s seat

Hydraulic System

Liebherr axial piston motor
Liebherr planetary reduction gear
Liebherr, sealed triple roller swing
ring, internal teeth
0 – 5,6 RPM
415 kNm
air-over hydraulic multi-disc brakes,
maintenance-free

Option
Controls
Monitoring
Acoustical and
optical signal
Optical signal
Heating system/
air conditioning
Noise emission
(86/662/EWG)

resiliently mounted, sound insulated,
large windows for 360 h visibility,
integrated falling object protection
(FOPS)
suspended, body-contoured with
shock absorber, adjustable to operator’s weight
additional training seat
joystick levers integrated into armrest of seat
via LED Display
in case of low engine oil pressure or
low coolant level. Automatic engine
shut of
in case of engine overheating or low
hydraulic oil level. Destroking of
main pumps
heavy duty, high output air conditioner and heater unit
inside cab = 78 dB(A)
outside
= 116 dB(A)

340 bar
0,5 bar
1380 l
2190 l
1 full flow filter in return line,
1 high pressure filter for each main
pump
2 separate coolers thermostatically
regulated fan
at rated engine speed setting
central lubrication system

Undercarriage
Hydraulic motor
Travel gear
Travel speed
Drawbar pull
Parking brake
Hydraulic brake valve
Track components
Track rollers/
carrier rollers
Track pads
Track chain adjustment
Transport

Axial piston motor
Liebherr planetary reduction gear
0 – 3,1 km/h
886 kN
hydraulically actuated wet multi-disc
brakes, maintenance-free
integrated in main valve block
B 10 S, maintenance-free
9/2
Forged double grouser
hydraulic
undercarriage side frames are
removable

Hydraulic Controls
Servo circuit
Emergency control
Power distribution
Flow summation
Control functions
Attachment and swing
Travel
Additional functions

Independant, electric over
hydraulic proportional controls of
each function
via accumulator for attachment
functions with stopped engine
via 3 monoblock control valves
with integrated primary and
flanged-on secondary relief valves
to attachment, hoist, stick and
bucket cylinders and travel drive
– proportional via joystick levers
– proportional via foot pedals or
hand levers for all travel functions
– via foot pedals or joystick toggle
switch

Technical Data
2

Attachment
Design
Pivots
Pivots bucket-to-stick
bucket-to-link
Lubrication
Hydraulic cylinder
Hydraulic connections
Bucket

box-type, welded structures with
large cast steel components
sealed and lubricated
O-ring sealed and completely
enclosed
connected to the centralized lubrication system
Liebherr manufactured cylinders,
sealed sherical, self aligning bearings, hydraulic piston cushioning
pipes and hoses equipped with SAE
split-flange connections
with lifting eye 50 t

A
A1
A2
C
D
D1
E
K
L
X
M

mm
4200
4700
5825
6280
4915
5035
3973
1893
5407
3200
6962

A
A1
A2
C
D
D1
E
K
L
X
M

mm
4200
4700
5825
6280
4915
5035
3973
1893
5407
3200
6962

P
Q
T
W
N
B
G

600
5300

mm
1832
806
8253
4500
800
5300
5585

C1
T1
T2

6350
10850
15300

P
Q
T
W
N
B
G

mm
1830
805
8253
4500
800
5300
5525

C1
T1
T2

600
5300
5525

4850
12700
16000

Dimensions
3

Diesel engine
The heavy duty, water-cooled, turbo-charged and aftercooled Cummins Diesel engine delivers superior power
and high power reserves. Its low operating speed
results in lower fuel consumption, reduced emissions
and an extended engine life. The enclosed engine compartment is easily accessible through full sized, easy to
open doors and permits “walk in” access to all components for easy service.

Litronic-System
The electronic engine-speed-sensing pump regulation
allows full utilization of the engines available output,
independent from external influences. The variable
displacement axial piston pumps are fitted with an
electro-hydraulic regulator which reacts in fractions of
a second to the changing requirements of power or
speed.
Flow compensation reduces pump flow to a minimum
when joystick levers are in neutral, avoiding excess
heat and energy loss. The same effect is achieved with
pressure compensation which minimizes pump flow
prior to reaching maximum operating pressure. An
automatic oil flow optimizer assures efficient power
distribution to each individual function.
The operators comfort and efficiency is enhanced by
the LED display and monitoring system. It monitors all
vital machine functions and includes a variety of automatic safety features. The Litronic system offers extensive customer benefits, such as improved efficiency,
reduced fuel consumption and overall economy.

Undercarriage
An overall low center of gravity for the machine is
achieved through favorable weight distribution of the
machine’s undercarriage, upper structure and attachment. This low center of gravity, combined with a wide
undercarriage base, provides excellent stability for
smooth, precise work and efficient transmission of the
high dig and breakout forces. It also increase the life
expectancy of undercarriage components. Standard
bolt-on track chain guides on each side frame protect
and improve the life expectancy of track components.
The two side frames are removable for easy transportation. Carbody and side frames are connected with a unique “hook and key” design, which shortens and simplifies assembly.

More Benefits Through Advanced Techno
4

Cab
The raised, spacious and comfortable cab features
oversized, tinted windows and offers an excellent view
of the trucks being loaded and general all-around visibility. The comfortable, air suspended and shock absorbed seat is adjustable to each individual operators
size and weight. An air conditioner, integrated into the
cab roof, is standard and increases operator comfort
even in the most adverse conditions. A falling object
protective structure (FOPS) is integrated into the roof.
The control and instrument panel is within easy view of
the operator. Service and control indicators, combined
in a display screen, conveniently and continuously
informs the operator, via symbols, of all machine functions. Effortless and precise joystick levers are comfortably integrated into the seat console.

Attachments
Strict use of fine grain alloy steel plates, true hollow
box structures and large size cast steel components in
high stress areas result in strong attachments with
high availability and long life expectancy. Widely spaced
pivots in the attachment allow the use of two short,
large diameter, hardened and chromed pins and low
wear, high alloy steel bushings. Completely sealed,
floating pins and bushings increase lubrication intervals and attachment availability.
Shovel and backhoe buckets are especially strong and
wear resistant. The optimized bucket shape achieves a
faster and higher degree of fill. A number of different
length sticks, booms and various size buckets allow the
machine to be tailored to all types of materials and
applications.

Swing Drive
Swing acceleration of the upper carriage is accomplished via an axial piston motor flanged to a Liebherr
planetary reduction gear. The swing pump and swing
motors are linked in an independent closed-loop
circuit. This system produces high swing torque, fast
swing accelerations and deceleration, requires less
power and shortens cycle times.
The high swing torque created by the Liebherr planetary reduction gear, is transmitted to the Liebherr
swing ring which features internal teeth for maximum
protection from external damage and contamination.
The swing operation is independent from all other
travel and attachment functions.

logy
5

To order a complet machine
you need the following:
x Basic machine and track pads
x Hoist cylinders

Id. No.
see page 12

9327202

x Gooseneck boom

8,00 m

9377146

x Stick with bucket cylinder 3,65 m

9377203

x Bucket – size as applicable

see below

Max. reach at ground level
Max. teeth height
Max. dump height
Max. digging depth

14,40 m
15,20 m
9,90 m
8,30 m

Max. digging force:
Max. breakout force:

512 kN (52,2 t)
640 kN (65,2 t)

Buckets
Cutting width SAE
mm
Capacity SAE heaped
m3
Weight
kg
Id. No.

Suitable for material up to a specific weight of t/m3
1)
2)
3)

20001)
5,70
6900
9355834
2,40

22001)
6,50
7600
9357602
2,20

24502)
7,50
7000
9355835
2,00

Heavy duty rock bucket with teeth size 86 (SD)
Bucket with teeth size 76 (FP)
Loading bucket with teeth size 76 (FP)

Backhoe Attachment
with Gooseneck Boom 8,00 m
6

26502)
8,50
7200
9355837
1,80

29003)
9,50
6900
9355836
1,50

To order a complete machine
you need the following:
x Basic machine and track pads
x Hoist cylinders
x Gooseneck boom

Id. No.
see page 12

9327202
9,40 m

9322569

x Stick with bucket cylinder 3,65 m
5,15 m

9377203
9332575

x Bucket – size as applicable

see below

Digging envelope
1
2

Stick
Stick

3,65 m
5,15 m

Stick length
Max. reach at ground level
Max. teeth height
Max. dump height
Max. digging depth

m
m
m
m
m

Max. digging force:
Max. breakout force:

3,65
15,90
16,20
10,90
9,50

5,15
17,40
17,10
11,80
11,00

512 kN (52,2 t)
640 kN (65,2 t)

Buckets
Cutting width SAE
Capacity SAE heaped
Weight
Id. No.
Suitable for material
up to a specific weight of
1)
2)

with Stick 3,65 m
with Stick 5,15 m

mm
m3
kg

t/m3
t/m3

16501)
3,70
5500
9333517

2,20

18501)
4,50
6000
9333518
2,20
1,80

20002)
5,70
6900
9355834
1,80
1,50

22002)
6,50
7600
9357602
1,50


Bucket with teeth size 76 (FP)
Heavy duty rock bucket with teeth size 86 (SD)

Backhoe Attachment
with Gooseneck Boom 9,40 m
7

To order a complete machine
you need the following:
x Basic machine

Id. No.
see page 12

x Extra hydraulic controls
for bottom dump bucket

9579465

x Hoist cylinders

9327202

x Shovel boom
with crowd cylinder

9358879

x Shovel stick
with bucket cylidners

9358878

x Bottom dump bucket – size as applicable

see below

Max. reach at ground level
Max. dump height 45 h
Max. crowd length
Bucket opening width F

10,80 m
10,00 m
4,30 m
2110 mm

Crowd force at ground level:
Max. crowd force:
Max. breakout force:

705 kN (71,8 t)
900 kN (91,7 t)
700 kN (71,3 t)

Buckets
Cutting width SAE
mm
Capacity SAE heaped
m3
Weight
kg
Id. No.

Suitable for material up to a specific weight of t/m3
1)
2)
3)

26501)
7,00
11500
9368041
2,60

Bottom dump bucket with Delta cutting edge and teeth size 86 (LP)
Bottom dump bucket with Delta cutting edge and teeth size 76 (LP)
Coal bottom dump bucket with straight spade nose and teeth size 66 (FP)

Shovel attachment
8

30502)
8,60
11400
9368039
2,20

30502)
9,20
12000
9368044
2,00

30502)
10,00
14000
9368042
1,80

33503)
12,00
11800
9329783
1,40

Cab
L Length
H Height
Width
Weight

mm
mm
mm
kg

3400
2800
1700
2000

Cab elevation
L Length
H Height
Width
Weight

mm
mm
mm
kg

2460
1325
1700
1100

Upper with swing ring
L Length
H Height
Width
Weight

mm
mm
mm
kg

6960
2160
3650
29200

Counterweight
L Length
H Height
Width
Weight

mm
mm
mm
kg

675
2080
4960
18800

Fuel Tank (one)
L Length
H Height
Width
Weight

mm
mm
mm
kg

1330
1185
1180
900

Hydraulic oil cooling unit (one)
L Length
H Height
Width
Weight

mm
mm
mm
kg

1910
1185
1285
800

Side panel (one)
L Length
H Height
Width
Weight

mm
mm
mm
kg

545
1900
1660
320

Catwalk right
L Length
H Height
Width
Weight

mm
mm
mm
kg

5470
270
520
200

Dimensions and Weights
9

Catwalk left
L Length
H Height
Width
Weight

mm
mm
mm
kg

Catwalk for cab
L Length
H Height
Width
Weight

mm
mm
mm
kg

2850
270
520
110

lateral1)
3360
410
410
130

back2)
550
350
510
30

Railing (1 kit)
L Length
H Height
Width
Weight

mm
mm
mm
kg

2100
1500
1000
230

Undercarriage central girder
L Length
H Height
Width
Weight

mm
mm
mm
kg

3060
1890
3700
10200

Side frame with complete travel drive
(each)
Track pads

mm

600

800

L Length
H Height
Width
Weight

mm
mm
mm
kg

6962
1830
1215
21600

6962
1830
1215
23150

Ladder (one each)

Cab1)

Undercarriage2)

L Length
H Height
Width
Weight

600
2930
550
50

mm
mm
mm
kg

180
1330
925
2 x 80

Hoist cylinder (two)
L Length
l Diameter
Weight

mm
mm
kg

3550
380
2 x 1500

Gooseneck boom with stick cylinders
Length

mm

8000

9400

L Length
H Height
Width
Weight

mm
mm
mm
kg

8500
3000
1550
13000

9900
3200
1550
14000

Dimensions and Weights
10

Stick with bucket cylinders, link and
lever
Length

mm

3650

5150

L Length
H Height
Width
Weight

mm
mm
mm
kg

5000
2300
1100
8500

7000
2200
1100
9200

Backhoe buckets
Cutting width

mm

1450

1650

1850

2000

Capacities
L Length
H Height
Width
Weight

m3
mm
mm
mm
kg

3,00
3000
1750
1450
4300

3,70
3000
1750
1650
4900

4,50
3000
1750
1850
5100

5,70
3000
2100
2000
6000

Backhoe buckets
Cutting width

mm

2200

2450

2650

2900

Capacities
L Length
H Height
Width
Weight

m3
mm
mm
mm
kg

6,50
3000
2100
2200
6700

7,50
3000
2100
2450
6800

8,50
3000
2100
2650
7000

9,50
3100
2100
2900
7200

Shovel boom with two crowd cylidners
L Length
mm
H Height
mm
Width
mm
Weight without cylidners kg
Weight of crowd cylidners kg

5540
1550
1550
9400
2 x 800

Shovel stick
L Length
H Height
Width
Weight

mm
mm
mm
kg

4100
1250
1750
5800

Bucket tilt cylidners (two)
L Length
l Diameter
Weight

mm
mm
kg

3390
285
2 x 950

Bottom dump buckets
Cutting width

mm

2650

3050

3050

3050

3350

Capacity SAE
L Length
H Height
Width
Weight

m3
7,00
8,60
9,20 10,00 12,00
mm 2500 2500 2900 3200 2700
mm 2700 2700 2900 2900 2900
mm 2650 3050 3050 3050 3350
kg 10800 11400 12000 14000 11800

Dimensions and Weights
11

Basic Machine Contents

Id. No.

x Basic machine R 992 litronic`
HD-undercarriage

0001053

x Double grouser pads
600 mm
800 mm

9373196
9373197

Operating Weight and
Ground Pressure
With backhoe attachment 8,00 m
with 600 mm pads:
with 800 mm pads:

139000 kg – 1,95 kg/cm2
142000 kg – 1,49 kg/cm2

The operating weight includes the basic machine with
backhoe attachment, 8,00 m gooseneck boom, 3,65 m
stick and 8,50 m3 bucket.

With backhoe attachment 9,40 m
with 600 mm pads:
with 800 mm pads:

138800 kg – 1,95 kg/cm2
141800 kg – 1,49 kg/cm2

The operating weight includes the basic machine with
backhoe attachment, 9,40 m, gooseneck boom, 5,15 m
stick and 4,50 m3 bucket.

With shovel attachment
143200 kg – 2,00 kg/cm2
146300 kg – 1,54 kg/cm2

The operating weight includes the basic machine with
shovel attachment and bottom dump bucket 10,00 m3.

LIEBHERR-FRANCE S.A. 2, Avenue Joseph Rey, B.P. 287, F-68005 Colmar-Cedex, ç 03 89 21 35 10, Fax 03 89 21 37 93
www.liebherr.com, E-Mail: infoØlfr.liebherr.com
With compliments:

LFR/SP 8410685-2-03.95 Printed in Germany by Gagstatter. Illustrations and data may differ from standard equipment. Subject to change without notice.

with 600 mm pads:
with 800 mm pads:


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