جرافة ذات عجلات Liebherr L538

Manufacturer
Liebherr
Model
L538
Year
2010
Observations
Wheel loader
Working hours: 8,435h. Needs repair of the rear differential.
Engine
· Diesel engine: D 934 S A6
· Construction Type: Water-cooled 4-cylinder engine, exhaust gas turbocharger and intake air cooling (charge air)
· Rated power (ISO 9249): 105 kW at 2,000 rpm
· Per xaximo: 770 Nm at 1,000-1,300 rpm
· Displacement: 6.36 litres
· Bore/Stroke: 122/136 mm
· Air Filtration System: Dry Air Filter with Main and Safety Element, Pre-Separator, LCD Display Maintenance Indication
Electrical system
· Operating voltage: 24 V
· Battery: 2 × 135 Ah / 12 V
· Alternator: Three-phase current 28 V / 80 A
· Starter: 24 V / 5.4 kW
· Emissions: Exhaust gas emissions are below Tier IIIA/Tier 3 limit values.
Translation mechanism
· Drive: Hydrostatic, continuously variable
· Type: Variable displacement hydraulic pumps and two hydraulic motors in closed circuit with transfer case. Forward and reverse gear is reversed by changing the direction of the flow of the travel pump.
· Filtration: Suction filter for the closed circuit
· Control: By accelerator and Inch pedal. The Inch pedal allows for stepless traction and speed control even with the motor at maximum RPM. The Liebherr joystick is used for forward/reverse selection and for the movements of the implement and bucket/bucket.
· Walking speeds:
oEtapa 1: 0 - 6.0 km/h
oStage A1-2: 0 - 16.0 km/h
oStage A1-3: 0 - 40,0 km/h
(Speeds valid for standard machine tires)
Axles
· Traction: Four-wheel drive
· Front axle: Fixed
· Rear axle: Oscillating (pendulum) with an angle of 6° on each side; Overcome obstacles up to 470 mm high, keeping all 4 wheels in contact with the ground
· Differentials: Self-locking with a locking value of 45% acting automatically on both axles
· On-shaft drive: Planetary gearboxes on the wheel hubs
· Track (track width): 1,900 mm for all types of tyres
Brakes
· Wear-free service brake: Self-locking of the hydrostatic drive of the travel system acting on all 4 wheels and, additionally, hydraulic brake by means of a pump accumulator, with wet disc brakes (lamellae) on the wheel hubs. Two independent braking circuits.
· Parking brake: Electro-hydraulic drive system on the axle differential
· Standard: The brake system complies with EC 71/320.
Address
· Construction: Oscillating central joint with damping elements
· Articulation angle: 40° (on each side)
· Oscillation angle: 6° (on each side)
· Maximum working pressure: 230 bar
· Emergency Steering: Electro-hydraulic emergency steering system
Operator's Cab
· Construction: ROPS-FOPS cab mounted on elastic silentblocks in the rear section, with acoustic insulation. Door with optional sliding window (opening angle 180°), right-hand tilting glass, front windscreen made of safety glass in green hue as standard, one-piece side windows in grey tinted safety glass, adjustable steering column and control levers/controls as standard, rear window with defroster.
· ROPS (tipping) protection: according to DIN/ISO 3.471 / EN 474-3
· FOPS (falling objects) protection: according to DIN/ISO 3.449 / EN 474-1
· Operator's seat: 6-way adjustable, shock and suspension adjustable to the operator's weight
· Heating and ventilation: Cabin with 4 levels of air control, coolant heating, defrosting and air conditioning with electronic control valve, plus electronic recirculation/outside air control. Filter system with pre-filter, outdoor and indoor air filter, easy to replace. Air conditioning as standard; Optional automatic climate control.
Noise emission
· ISO 6396: LpA (in the operator's cab) = 69 dB(A)
·2000/14/EC: LWA (outdoor) = 102 dB(A)
Filling capacities
· Fuel tank: 170 l
· Diesel engine (with filter change): 29 l
· Transfer case: 3.8 l
· Front axle / wheel hub: 16.3 / 2.6 l
· Rear axle / wheel hub: 15 / 2.6 l
· Hydraulic tank: 110 l
· Complete hydraulics: 180 l
Work team
· Kinematics: Powerful Z-kinematics with a tipping cylinder; Hydraulic quick hitch (optional)
· Bearings: Sealed
· Duty cycle at rated load:
oElevar: 5,9 s
oDischarge/Empty: 1.6 s
oLower (empty): 4.0 s
Service hydraulics
· Construction: Variable axial piston pump "Load-Sensing" with power control and pressure cut-off in the valve block
· Cooling: Cooling of the hydraulic fluid by means of a fan controlled by thermostat and radiator
· Filtration: Return filter in the hydraulic tank
· Control: Joystick control, hydraulic pre-control
· Lifting circuit: Up, neutral, down. Floating via Liebherr joystick with interlocking; automatic disconnection of the lifting movement; Optional automatic load limiting circuit
· Bucket/Bucket Circuit: Filling, Neutral, Discharge. Automatic bucket return
· Caudal máximo: 140 l/min
· Maximum working pressure: 330 bar