Liebherr R 996 B - Manual (Page 2)

2 TD R 996 Arctic Litronic
Technical Data
Engine
2 Cummins diesel engines
Rating per
SAE J 1995
________________ 3000 HP/2240 kW at 1800 RPM
Model ________________________ K 1800 E
Type __________________________ 16 cylinder V-engine,
water-cooled,
direct injection,
turbo-charged,
after-cooler
Displacement ____________ 50,3 l/3069 cu.in
Bore/Stroke ________________ 159/159 mm/6.26/6.26 in
Air cleaner ______________________ dry-type air cleaner with pre-cleaner, with
automatic dust ejector, primary and safety
elements
Fuel tank ________________________ 13 000 l/3440 gal
Electrical system
Voltage ______________________ 24 V
Batteries ____________________ 8 (+ 4) x 170 Ah/12 V
Alternator __________________ 4 x 24 V/150 Amp
Engine idling ____________________ sensor controlled
Option ____________________________ alternate diesel engines or electric motors
on request
Swing Drive
Hydraulic motor ________________ 4 Liebherr axial piston motors
Swing gear ______________________ 4 Liebherr planetary reduction gears
Swing ring ______________________ Liebherr, sealed triple roller swing ring,
internal teeth
Swing speed ____________________ 0 – 3.5 RPM
Swing-Holding brake ________ hydraulically released, maintenance-free,
multi-disc brakes integrated in each swing
gear
Hydraulic Controls
Servo circuit ____________________ independant, electric over hydraulic
proportional controls of each function
Emergency control ______ via accumulator for all attachment func-
tions with stopped engine
Power distribution ____________ via monoblock control valves with inte-
grated primary relief valves and flanged on
secondary valves for travel
Flow summation ________ to attachment and travel drive
Control functions
Attachment and
swing
________________________ proportional via joystick levers
Travel ________________________ proportional via foot pedals or hand levers
Bottom dump bucket __ proportional via foot pedals
Operation with one engine possible
Hydraulic System
Hydraulic pumps
for attachment and
travel drive
________________ 8 variable flow axial piston pumps
Max. flow __________________ 8 x 840 l/min./8 x 222 gpm
Max. hydr. pressure ____ 320 bar/4640 PSI
Hydraulic pumps
for swing drive ____________ 4 reversible swash plate pumps, closed-
loop circuit
Max. flow __________________ 4 x 413 l/min./4 x 109 gpm
Max. hydr. pressure ____ 350 bar/5076 PSI
Pump regulation ______________ electro-hydraulic,
pressure compensation,
flow compensation,
automatic oil flow optimizer
Hydraulic tank capacity ____ 4600 l/1216 gal
Hydraulic system
capacity
__________________________ 8200 l/2169 gal
Hydraulic oil filter ______________ filtration of entire return flow, 1 high
pressure filter for each main pump
Hydraulic oil cooler __________ 2 separate coolers, 4 temperature
controlled fans driven via hydraulic piston
motors
Electronic engine
speed sensing
__________________ over the entire engine RPM range
Lubrication ______________________ central lubrication system
Uppercarriage
Design ____________________________ torque resistant designed upper frame in
box type construction for superior strength
and durability
Attachment mounting ________ parallel longitudinal main girders in box-
section construction
Catwalks ________________________ on the right side with a hydraulically driven
access ladder, additional emergency ladder
in front of the cab
Service Flap
Design ____________________________ 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
Quick coupler upon request