Liebherr R 996 B User Manual
Technical Description
Hydraulic Excavator
Operating Weight with Backhoe Attachment 668 t/1,472,700 lb
Operating Weight with Shovel Attachment 677 t/1,492,500 lb
Engine Output 3000 HP (2240 kW)
Bucket Capacity 25,00 – 36,00 m
Shovel Capacity 25,00 – 36,00 m
Operating Temperature – 50 °C to + 40 °C/– 58 °F to + 104 °F
3
/32.7 – 47.1 cuyd
3
/32.7 – 47.1 cuyd
R 996
litronic
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Technical Data
Engine
2 Cummins diesel engines
Rating per
SAE J 1995
Model
Type
Displacement
Bore/Stroke
Air cleaner
Fuel tank
Electrical system
Voltage
Batteries
Alternator
Engine idling
Option
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Hydraulic System
Hydraulic pumps
for attachment and
travel drive
Max. flow
Max. hydr. pressure
Hydraulic pumps
for swing drive
Max. flow
Max. hydr. pressure
Pump regulation
Hydraulic tank capacity
Hydraulic system
capacity
Hydraulic oil filter
Hydraulic oil cooler
Electronic engine
speed sensing
Lubrication
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3000 HP/2240 kW at 1800 RPM
K 1800 E
16 cylinder V-engine,
water-cooled,
direct injection,
turbo-charged,
after-cooler
50,3 l/3069 cu.in
159/159 mm/6.26/6.26 in
dry-type air cleaner with pre-cleaner, with
automatic dust ejector, primary and safety
elements
13000 l/3440 gal
24 V
8 (+ 4) x 170 Ah/12 V
4 x 24 V/150 Amp
sensor controlled
alternate diesel engines or electric motors
on request
8 variable flow axial piston pumps
8 x 840 l/min./8 x 222 gpm
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320 bar/4640 PSI
4 reversible swash plate pumps, closedloop circuit
4 x 413 l/min./4 x 109 gpm
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350 bar/5076 PSI
electro-hydraulic,
pressure compensation,
flow compensation,
automatic oil flow optimizer
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4600 l/1216 gal
8200 l/2169 gal
filtration of entire return flow, 1 high
pressure filter for each main pump
2 separate coolers, 4 temperature
controlled fans driven via hydraulic piston
motors
over the entire engine RPM range
central lubrication system
Swing Drive
Hydraulic motor
Swing gear
Swing ring
Swing speed
Swing-Holding brake
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Uppercarriage
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Design
Attachment mounting
Catwalks
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Service Flap
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Design
Quick coupler upon request
4 Liebherr axial piston motors
4 Liebherr planetary reduction gears
Liebherr, sealed triple roller swing ring,
internal teeth
0–3.5 RPM
hydraulically released, maintenance-free,
multi-disc brakes integrated in each swing
gear
torque resistant designed upper frame in
box type construction for superior strength
and durability
parallel longitudinal main girders in boxsection construction
on the right side with a hydraulically driven
access ladder, additional emergency ladder
in front of the cab
hydraulically actuated service flap, easily
accessible from ground level to allow:
– fuel fast refill
– hydraulic oil refill
– engine oil quick change
– splitterbox oil quick change
– swing gearbox oil quick change
– swing ring gearing grease barrel refilling
via grease filter
– attachment/swing ring bearing grease
barrel refilling via grease filter
– windshield washer water refilling
Hydraulic Controls
Servo circuit
Emergency control
Power distribution
Flow summation
Control functions
Attachment and
swing
Travel
Bottom dump bucket
Operation with one engine possible
2 TD R 996 Arctic Litronic
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independant, electric over hydraulic
proportional controls of each function
via accumulator for all attachment functions with stopped engine
via monoblock control valves with integrated primary relief valves and flanged on
secondary valves for travel
to attachment and travel drive
proportional via joystick levers
proportional via foot pedals or hand levers
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proportional via foot pedals
Technical Data
Operator’s Cab
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Design
Operator’s seat
Cabin windows
Heating system/
Air conditioning
Cabin pressurization
Controls
Monitoring
Automatic engine
shut off
Destroking of
main pumps
Safety functions
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Undercarriage
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Design
Hydraulic motor
Travel gear
Travel speed
Parking brake
Track components
Track rollers/
Carrier rollers
Automatic track
tensioner
Transport
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resiliently mounted, sound insulated,
large windows for all-around visibility,
integrated falling object protection FOPS
suspended, body-contoured with shock
absorber, adjustable to operator’s weight
20,5 mm/0.8 in tinted armored glass for
front window and left hand side windows,
all other windows in tinted safety glass,
high pressure windshield-washer-system
with 75 l/20 gal watertank,
sun louvers on all windows in heavy duty
design
heavy duty, high output air conditioner and
heater unit
ventilation unit with filters
joystick levers integrated into armrest of
seat
via LCD-Display, data memory
in case of low engine oil pressure or low
coolant level
in case of engine overheating or low
hydraulic oil level
additional gauges with constant display for:
engine speed, hourmeter, engine oil
pressure, coolant temperature and
hydraulic oil temperature
3-piece undercarriage,
box type structures for center piece and
side frames,
stress relieved
2 axial piston motors per side frame
Liebherr reduction gear
0–2,2 km/h/0–1.4 mph
spring engaged, hydraulically released wet
multi-disc brakes for each travel motor,
maintenance-free
maintenance-free combined pad-link,
heavy duty track shoes
7/3
pressurized hydraulic cylinder with accumulator, maintenance free
undercarriage side frames are removable
Central Lubrication System
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Type
Grease pumps
Capacity
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Attachment
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Design
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Pivots
Hydraulic cylinders
Hydraulic connections
Kinematics
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Lincoln Centromatic lubrication system for
the entire attachment and swing ring
2 Lincoln Powermaster pumps with switch
over function,
plus 1 separate pump for swing ring teeth
1 x 600 l/158,5 gal bulk container for
attachment and swing ring, separated
1 x 80 l/21 gal grease drum for swing ring
teeth
box type structure with large steel castings
in all high-stress areas
sealed with double side centering with
1 single floating pin per side,
all bearings with wear resistant, steel
bushings,
bolts hardened and chromium-plated
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Liebherr design, all cylinders located in well
protected areas
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pipes and hoses equipped with SAE split
flange connections
Liebherr parallel face shovel attachment
geometry
TD R 996 Arctic Litronic 3
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