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 m3 / 20.0 – 23.5 yd3 |
Shovel Capacity: |
15,30 – 18,00 m3 / 20.0 – 23.5 yd3 |
Operating Temperature: |
– 40 °C to + 40 °C / – 40 °F to + 104 °F |
Technical Data
Engine
1 Cummins diesel engine Rating per
SAE J 1995 ________________ 1500 hp (1120 kW) at 1800 rpm
Model ________________________ QSK45
Type __________________________ 12 cylinder turbocharged V-engine, after-cooler,
two separate water cooling circuits, direct injection system
Displacement ____________ 45 l/2745 in3
Bore/Stroke________________ 159/190 mm / 6.26/7.48 in
Engine cooling system ______ fans driven via hydraulic piston motor
Air cleaner ______________________ dry-type air cleaner with pre-cleaner, with automatic dust ejector, primary and safety elements
Fuel tank ________________________ 5815 l/1536 gal
Electrical system
Voltage ______________________ 24 V
Batteries ____________________ 4 (+ 2) x 170 Ah/12 V Alternator __________________ 24 V/260 Amp
Engine idling ____________________ sensor controlled Electronic engine
control system ________________ engine speed sensing over the entire engine RPM range. Provides integration of engine with other machine systems
Option ____________________________ alternate diesel engine or electric motor on request
Hydraulic System
Hydraulic pumps
for attachment and
travel drive ________________ 4 variable flow axial piston pumps Max. flow __________________ 4 x 754 l/min. / 4 x 199 gpm Max. hydr. pressure ____ 320 bar/4640 psi
Hydraulic pump
for swing drive ____________ 2 reversible swash plate pumps, closedloop circuit
Max. flow __________________ 2 x 390 l/min. / 2 x 103 gpm Max. hydr. pressure ____ 350 bar/5076 psi
Pump regulation ______________ electro-hydraulic, pressure compensation, flow compensation,
automatic oil flow optimizer Hydraulic tank capacity ____ 2200 l/581 gal
Hydraulic system
capacity __________________________ 4200 l/1110 gal
Hydraulic oil filter ______________ filtration of entire return flow, 1 high pressure filter for each main pump
Hydraulic oil cooler __________ 2 separate coolers, 2 temperature controlled fans driven via hydraulic piston motor
Hydraulic Controls
Servo circuit ____________________ independant, electric over hydraulic proportional controls of each function
Emergency control ______ via accumulator for all attachment functions with stopped engine
Power distribution ____________ via monoblock control valves with integrated primary relief valves and flanged on secondary valves
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
Swing Drive
Hydraulic motor________________ 2 Liebherr axial piston motors Swing gear ______________________ 2 Liebherr planetary reduction gears
Swing ring ______________________ Liebherr, sealed triple roller swing ring, internal teeth
Swing speed ____________________ 0 – 3.7 rpm
Swing torque __________________ 1120 kNm/82,607 lbf ft
Swing-Holding brake ________ hydraulically released, maintenance-free, multi-disc brakes integrated in each swing gear
Uppercarriage
Design ____________________________ torque resistant designed upper frame in box type construction for superior strength and durability
Attachment mounting________ parallel longitudinal main girders in boxsection construction
Catwalks ________________________ 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
Service Flap
Design ____________________________ 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
Quick couplers on request
2 R 9350 Arctic
Technical Data
Operator’s Cab |
Design ____________________________ resiliently mounted, sound insulated, large windows for all around visibility, integrated falling object protection FOPS
Operator’s seat ________________ suspended, body-contoured with shock absorber, adjustable to operator’s weight
Cabin windows ________________ 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
Heating system/
Air conditioning ________________ 1 heating system + air conditioning (double unit optionally available)
Cabin pressurization ________ ventilation with filter
Controls __________________________ joystick levers integrated into armrest of seat
Monitoring ______________________ via LCD-Display, data memory Automatic engine
shut off ____________________________ engine self-controlled shut off Destroking of main
pumps ____________________________ in case of low hydraulic oil level
Safety functions ______________ additional gauges with constant display for: engine speed, hourmeter, voltmeter, safety mode for engine speed control and pump regulation
Noise emission
ISO 6396________________ LpA (inside cab) = 89 dB(A)
with AC/heater 100 % running fans
Central Lubrication System
Type ________________________________ Lincoln Centromatic lubrication system, for the entire attachment and swing ring
Grease pumps ________________ Lincoln Powermaster pump plus separate pump for swing ring teeth
Capacity __________________________ 200 l/52.8 gal bulk container for attachment and swing ring, separated 80 l/21 gal bulk container for swing ring teeth
Refill ______________________________ via the service flap for both containers. Fill line with grease filters
Attachment
Design ____________________________ box-type structure with large steel castings in all high-stress areas
Pivots ____________________________ sealed with double side centering with 1 single floating pin per side,
all bearings with wear resistant steel bushings,
bolts hardened and chrominium-plated Hydraulic cylinder ____________ Liebherr design, all cylinders located in well
protected areas
Hydraulic connections ______ pipes and hoses equipped with SAE splitflange connections
Kinematics ______________________ Liebherr parallel face shovel attachment geometry, backhoe bucket pivoting angle 150°, electronic controlled end-cushioning
Undercarriage
Design ____________________________ 3-piece undercarriage,
box type structures for center piece and side frames (stress relieved steel work component as a standard)
Hydraulic motor________________ 2 axial piston motors per side frame Travel gear ______________________ Liebherr planetary reduction gear Travel speed ____________________ 0 – 2,4 – 3,1 km/h / 0 – 1.49 – 1.93 mph Parking brake __________________ spring engaged, hydraulically pressure
released wet multi-disc brakes for each travel motor, maintenance-free
Track components ____________ D 12, maintenance-free, forged double grouser pad
Track rollers/
Carrier rollers __________________ 9/2
Automatic track
tensioner ________________________ pressurized hydraulic cylinder with accumulator
Transport ________________________ undercarriage side frames are removable
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 ________ 2 preheaters from 4 kW
automatic preheating/warm keeping (own thermostat) of coolant of diesel engine
Electrically driven warm
air blowers ________________________ 6 blowers from 3 kW
automatic warm keeping (blowers with own thermostat) of the ambient air temperature in pumps compartment, main valves compartment, cab elevation and engine compartment, warm keeping of the hydraulic piloting units and electric boxes
Electrical oil heater units
in the hydraulic tank ______ 7 resistors from 2 kW
automatic preheating/warm keeping (own thermostat) of hydraulic oil in the hydraulic tank
in the splitterbox __________ 2 resistors from 500 W
automatic preheating/warm keeping (own thermostat) of splitterbox oil
in the engine oil pan ______ 4 resistors from 500 W
automatic preheating/warm keeping (own thermostat) of engine oil
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 __________________________ filaments in the windshield and all the side windows
automatic defrosting of the cabin windows Electrical cabin preheater ____ 1 preheater from 3 kW
automatic preheating/warm keeping (own thermostat) of the cabin
Heating covers around the
grease containers ______________ automatic preheating/warm keeping (own thermostat) of the greasing tank
Heating covers around the
batteries __________________________ automatic preheating/warm keeping (own thermostat) of batteries
24 V resistor heating __________ resistors from 20 W and 150 W
automatic heating and drying of electric boxes and operator’s seat
Two forced circulating
heating system __________________ 2 preheaters from 9 kW
automatic preheating/warm keeping of all working pumps, slew pumps, fan pumps, slew motors, drive motors and valves blocs
Fuel preheater __________________ 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.
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 ____________________ operator’s cab, cab elevation, valve bank compartment, engine compartment
Heated components __________ engine and splitter box, main, slew, oilcooler, watercooler pumps, batteries, travel, swing motors, main valves blocks, electrical boxes and joysticks, grease pumps and control valves
Insulation
Thermal insulated
components______________________ complete power pack, main control valve compartment, hydraulic tank module, fuel tank and cab elevation, battery compartment, cab roof, floor and walls, grease containers
Closed carbody openings ____ mechanically adjustable louvers to isolate the excavator
–in front of engine radiator
–in front of hydraulic radiator
Snow protection for
engine air filter intake __________ optional air intake from the engine compartment is possible
Central Lubrication System
Design ____________________________ thermal insulated grease containers, large nominal width for all grease lines, special injector for cold climate
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 corresponding to CSA standards.
–Different components with CSA approval
–Different tension and frequency 440 V/254 V/60 Hz
Safety IT-System ________________ isolated ground, monitoring of: short circuit, overload, isolation; system reactions: warning (acoustical/optical), shut down
Battery charge __________________ continuously during standstill 24 V board network ____________ continuous power supply
Accessory parts ________________ 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
Operator’s Cab
Design ____________________________ increased thermal insulation at walls, roofs and cab floor
Heating system__________________ heating capacity adapted to arctic conditions, windshield and front side windows preheated to defrost, and also insulation glass, heated operator’s seat (minimum temperature inside the operator’s cab during standstill + 15 °C/
+ 59 °F)
Controls __________________________ electrical boxes and joysticks equipped with 24 V electrical heating elements
Additionnal Measures
Low temperature adapted lubricants
Undercarriage components
in – 40 °C version ________________ accumulators, track tensioning cylinder, (standard track roller are good for – 40 °C)
Uppercarriage components
in – 40 °C version ________________ splitter box, gear pumps, accumulators, fan drive motors
Attachment ______________________ use of special low temperature hoses for uppercarriage to attachment and attachment hoses
4 R 9350 Arctic
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