Liebherr R 9350 User Manual
Hydraulic Excavator R 9350 Arctic
Operating Weight
with Backhoe Attachment: 302,000 kg / 665,800 lb
with Shovel Attachment: 310,000 kg / 683,400 lb
Engine Output: 1120 kW / 1500 hp
Bucket Capacity: 15,30 – 18,00 m
Shovel Capacity: 15,30 – 18,00 m3/ 20.0 – 23.5 yd
Operating Temperature: – 40 °C to + 40 °C / – 40 °F to + 104 °F
3
/ 20.0 – 23.5 yd
3
3
Technical Data
Engine
1 Cummins diesel engine
Rating per
SAE J 1995
Model
Ty pe
Displacement
Bore/Stroke
Engine cooling system
Air cleaner
Fuel tank
Electrical system
Voltage
Batteries
Alternator
Engine idling
Electronic engine
control system
Option
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Hydraulic System
Hydraulic pumps
for attachment and
travel drive
Max. flow
Max. hydr. pressure
Hydraulic pump
for swing drive
Max. flow
Max. hydr. pressure
Pump regulation
Hydraulic tank capacity
Hydraulic system
capacity
Hydraulic oil filter
Hydraulic oil cooler
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1500 hp (1120 kW) at 1800 rpm
QSK45
12 cylinder turbocharged V-engine,
after-cooler,
two separate water cooling circuits,
direct injection system
45 l/2745 in
159/190 mm / 6.26/7.48 in
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fans driven via hydraulic piston motor
3
dry-type air cleaner with pre-cleaner, with
automatic dust ejector, primary and safety
elements
5815 l/1536 gal
24 V
4 (+ 2) x 170 Ah/12 V
24 V/260 Amp
sensor controlled
engine speed sensing over the entire
engine RPM range. Provides integration
of engine with other machine systems
alternate diesel engine or electric motor on
request
4 variable flow axial piston pumps
4 x 754 l/min. / 4 x 199 gpm
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320 bar/4640 psi
2 reversible swash plate pumps, closedloop circuit
2 x 390 l/min. / 2 x 103 gpm
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350 bar/5076 psi
electro-hydraulic,
pressure compensation,
flow compensation,
automatic oil flow optimizer
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2200 l/581 gal
4200 l/1110 gal
filtration of entire return flow, 1 high
pressure filter for each main pump
2 separate coolers, 2 temperature
controlled fans driven via hydraulic piston
motor
Swing Drive
Hydraulic motor
Swing gear
Swing ring
Swing speed
Swing torque
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 couplers on request
2 Liebherr axial piston motors
2 Liebherr planetary reduction gears
Liebherr, sealed triple roller swing ring,
internal teeth
0 – 3.7 rpm
1120 kNm/82,607 lbf ft
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 left side with a hydraulically driven
access ladder, catwalks in front of the
pumps and in the counterweight, additional
emergency ladder in front of the cab
hydraulically actuated service flap, with
lighting 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 teeth grease barrel refilling via
grease filter
– attachment/swing ring bearing grease
barrel refilling via grease filter
– windshield wash water refilling
Hydraulic Controls
Servo circuit
Emergency control
Power distribution
Flow summation
Control functions
Attachment and
swing
Travel
Bottom dump bucket
2 R 9350 Arctic
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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 inte grated primary relief valves and flanged on
secondary valves
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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Noise emission
ISO 6396________________ L
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 right hand side windows,
all other windows in tinted safety glass,
high pressure windshield-washer system
75 l/20 gal watertank,
steel sun louvers on all windows
1 heating system + air conditioning (double
unit optionally available)
ventilation with filter
joystick levers integrated into armrest of
seat
via LCD-Display, data memory
engine self-controlled shut off
in case of low hydraulic oil level
additional gauges with constant display for:
engine speed, hourmeter, voltmeter, safety
mode for engine speed control and pump
regulation
(inside cab) = 89 dB(A)
pA
with AC/heater 100 % running fans
3-piece undercarriage,
box type structures for center piece and
side frames (stress relieved steel work
component as a standard)
2 axial piston motors per side frame
Liebherr planetary reduction gear
0 – 2,4 – 3,1 km/h / 0 – 1.49 – 1.93 mph
spring engaged, hydraulically pressure
released wet multi-disc brakes for each
travel motor, maintenance-free
D 12, maintenance-free, forged double
grouser pad
9/2
pressurized hydraulic cylinder with accumulator
undercarriage side frames are removable
Central Lubrication System
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Ty pe
Grease pumps
Capacity
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Refill
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Attachment
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Design
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Pivots
Hydraulic cylinder
Hydraulic connections
Kinematics
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Lincoln Centromatic lubrication system, for
the entire attachment and swing ring
Lincoln Powermaster pump plus separate
pump for swing ring teeth
200 l/52.8 gal bulk container for attachment
and swing ring, separated 80 l/21 gal bulk
container for swing ring teeth
via the service flap for both containers.
Fill line with grease filters
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 chrominium-plated
Liebherr design, all cylinders located in well
protected areas
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pipes and hoses equipped with SAE splitflange connections
Liebherr parallel face shovel attachment
geometry, backhoe bucket pivoting angle
150°, electronic controlled end-cushioning
R 9350 Arctic 3
Arctic Kit
Electrical Preheating prior to Engine
Start
The hydraulic excavator can be preheated with an external electric power
supply (80 kW, 400 V, 50 Hz). The electric power supply must be connected
to the excavator through a connector situated on the cab elevation. The
following heating equipments are installed on the excavator and each heater
is designed to heat a part of the machine:
Electrically driven water
engine preheater units
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2 preheaters from 4 kW
automatic preheating/warm keeping (own
thermostat) of coolant of diesel engine
Electrically driven warm
air blowers
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6 blowers from 3 kW
automatic warm keeping (blowers with own
thermostat) of the ambient air temperature in
pumps compartment, main valves compart-
ment, cab elevation and engine compartment,
warm keeping of the hydraulic piloting units
and electric boxes
Electrical oil heater units
in the hydraulic tank
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7 resistors from 2 kW
automatic preheating/warm keeping (own
thermostat) of hydraulic oil in the hydraulic tank
in the splitterbox
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2 resistors from 500 W
automatic preheating/warm keeping (own
thermostat) of splitterbox oil
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in the engine oil pan
4 resistors from 500 W
automatic preheating/warm keeping (own
thermostat) of engine oil
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in the suction pipes
2 resistors from 500 W
automatic preheating/warm keeping (own
thermostat) of hydraulic oil in the suction pipes
Electrical heating cabin
windows
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filaments in the windshield and all the side
windows
automatic defrosting of the cabin windows
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Electrical cabin preheater
1 preheater from 3 kW
automatic preheating/warm keeping (own
thermostat) of the cabin
Heating covers around the
grease containers
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automatic preheating/warm keeping (own
thermostat) of the greasing tank
Heating covers around the
batteries
24 V resistor heating
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automatic preheating/warm keeping (own
thermostat) of batteries
resistors from 20 W and 150 W
automatic heating and drying of electric boxes
and operator’s seat
Two forced circulating
heating system
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2 preheaters from 9 kW
automatic preheating/warm keeping of all
working pumps, slew pumps, fan pumps, slew
Fuel preheater
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motors, drive motors and valves blocs
heat exchanger with warm engine coolant,
preheated fuel at the entry of the engine
Electrical Heating After Engine Start
(without Electrical Supply)
Continuous flushing of swing and travel motors with an additional gear
pump, in order to supply oil at operating temperature even if travel or swing
functions are not actuated.
Continuous preheating fuel with a warm engine coolant heat exchanger.
Insulation
Thermal insulated
components
Closed carbody openings
Snow protection for
engine air filter intake
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complete power pack, main control valve
compartment, hydraulic tank module, fuel
tank and cab elevation, battery compartment,
cab roof, floor and walls, grease containers
mechanically adjustable louvers to isolate the
excavator
– in front of engine radiator
– in front of hydraulic radiator
optional air intake from the engine compartment is possible
Central Lubrication System
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Design
thermal insulated grease containers, large
nominal width for all grease lines, special
injector for cold climate
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Heated components
electro thermal wrap around, both grease containers
Features of the Electrical Preheating
System
Electrical system is designed corresponding to europeen standards
400 V/230 V/50 Hz. Optionally the system can be delivered corre spond ing
to CSA standards.
– Different components with CSA approval
– Different tension and frequency 440 V/254 V/60 Hz
Safety IT-System
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isolated ground, monitoring of: short circuit,
overload, isolation; system reactions: warning
Battery charge
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24 V board network
Accessory parts
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(acoustical/optical), shut down
continuously during standstill
continuous power supply
additional alternator to ensure 100 % lighting
and heating, additional battery pack for
emergency lighting
Steel Construction
The steel structures of the Liebherr standard excavators are good for
–40 °C. Minimum required are Charpy impact values of 27 joule at minimum
ambient temperature.
Liebherr requirements:
for steel plates LH 380
for casting parts
for mining
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36 Joule at –40 °C
AOD (Argon Oxygen Decarburizing) or
VLS (Very Low Sufur) steel > 60 Joule at –20 °C
Operator’s Cab
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Design
Heating system
Controls
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increased thermal insulation at walls, roofs
and cab floor
heating capacity adapted to arctic conditions,
windshield and front side windows pre heated
to defrost, and also insulation glass, heated
operator’s seat (minimum temperature inside
the operator’s cab during standstill + 15 °C/
+ 59 °F)
electrical boxes and joysticks equipped with
24 V electrical heating elements
Stand-by Heating Operation
If the machine is turned off for more than one hour and the ambient air
temperature is below – 10 °C, connect the external generator set to start the
heaters (auto-regulated) in order to maintain the excavator in predefined
temperature and to be able to restart quickly.
Heated areas
Heated components
4 R 9350 Arctic
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operator’s cab, cab elevation, valve bank
compartment, engine compartment
engine and splitter box, main, slew, oil cooler,
watercooler pumps, batteries, travel, swing
motors, main valves blocks, electrical boxes
and joysticks, grease pumps and control valves
Additionnal Measures
Low temperature
adapted lubricants
Undercarriage components
in –40 °C version
Uppercarriage components
in –40 °C version
Attachment
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for uppercarriage, for undercarriage
accumulators, track tensioning cylinder,
(standard track roller are good for –40 °C)
splitter box, gear pumps, accumulators,
fan drive motors
use of special low temperature hoses for uppercarriage to attachment and attachment hoses
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