Liebherr LH 80 C Litronic - Manual (Page 9)

9 Special timber handling machines from Liebherr
Travel Drive
Stepless hydrostatic travel drive
Design
_________________________ Swash plate type variable flow pump and two variable
axial piston motors in closed loop circuit and axle
transfer case. Direction of travel is reversed by chan-
ging the flow-direction of the variable-displacement
pump
Filtering system ______________ Suction return line filter for closed circuit
Control ________________________ By travel and inching pedal. The inching pedal makes
it possible to control the tractive and thrust forces
steplessly at full engine speed. The Liebherr joystick
is used to control forward and reverse travel
Travel speed range ________________ Speed range 1 ____________________________ 0 – 6.0 km/h
Speed range A1-2 ________________________ 0 – 16.0 km/h
Speed range A1-3 ________________________ 0 – 40.0 km/h
The quoted speeds apply with the tyres that are
standard equipment on the loader.
Axles
Four-wheel drive
Front axle
___________________________ Fixed
Rear axle ___________________________ Centre pivot, with 10° oscillating angle to each side.
470 mm in height can be driven over (with all four
wheels remain in contact with the ground)
Differentials _________________________ Automatic limited-slip differentials with 45% locking
action in both axles
Reduction gear _____________________ Planetary final drive in wheel hubs
Track width ________________________ 1,960 mm with all types of tyres (L 524, L 528)
1,900 mm with all types of tyres (L 538, L 542)
Brakes
Wear-free service brake ___________ Self-locking of the hydrostatic travel drive (acting on
all four wheels) and additional pump-accumulator
brake system with wet multi-disc brakes located in
the differential housing (two seperate brake circuits)
Parking brake ______________________ Electro-hydraulically actuated spring-loaded disc
brake system on the front axle
The braking system meets the requirements of the EC guidelines 71/320.
Steering
Design ______________________________ „Load-sensing“ swash plate type variable flow pump
with pressure cut-off and flow control. Central pivot
with two double-acting steering cylinders
Articulation angle __________________ 40° (to each side)
Emergency steering _______________ Electro-hydraulic emergency steering system
Operator‘s Cab
Design ______________________________ On elastic bearing on rear section, soundproof
ROPS/FOPS cab. Operator‘s door with optional fold-
out window, 105° opening angle, ventilation opening
on the right side, front windscreen made of com-
pound safety glass, green tinted as standard, side
windows made of single-pane safety glass,
grey tinted, continuously adjustable steering column
and joystick control as standard, heated rear window
(ESG)
ROPS roll over protection per EN/ISO 3471/
EN 474-1
FOPS falling objects protection per EN/ISO 3449/
EN 474-1
Liebherr Operator‘s seat __________ 6 way adjustable seat with lap belt, vibration damping
and suspension adjustable for the operator‘s weight
(mechanically sprung)
Cab heating and ventilation _______ Operator‘s cab with 4-level air control, cooling water
heating, defroster and air conditioning with electronic
valve control, as well as electronic fresh/recirculated
air control, filter system with pre-filter, fresh air filter
and recirculated air filter, easily replaced, air condition /
automatic air conditioning system optional
Noise Emission
L 524 L 528 L 538 L 542
ISO 6396
L
pA
(inside cab) _______________ 69 dB(A) 69 dB(A) 69 dB(A) 69 dB(A)
2000/14/EG
L
WA
(surround noise) _________ 101 dB(A) 101 dB(A) 102 dB(A) 102 dB(A)
Capacities
L 524 L 528 L 538 L 542
Fuel tank
(plastic design)
___________________ l 205 205 205 205
Fuel tank
(steel version, optional)
___________ l 220 220 220 220
Engine oil
(inclusive filter change)
___________ l 14.7 20.5 20.5 20.5
Transmission ______________________ l 3.8 3.8 3.8 3.8
Coolant ____________________________ l 38 38 38 38
Front axle/wheel hubs ____________ l 16.3/2.6 16.3/2.6 16.3/2.6 16.3/2.6
Rear axle/wheel hubs _____________ l 15/2.6 15/2.6 15/2.6 15/2.6
Hydraulic tank ____________________ l 110 110 110 110
Hydraulic system, total ___________ l 170 170 180 180
Attachment
Geometry can be chosen _________ Powerful Z-bar linkage with one tilt cylinder,
hydraulic quick-hitch – optional equipment;
_________ Parallel linkage with two tilt cylinders, hydraulic
quick-hitch – standard equipment
Bearings ____________________________ Sealed
Cycle time at nominal load ________ L 524 L 528 L 538 L 542
ZK PK ZK PK ZK PK ZK PK
Lifting __________________________ 6.6 s 6.6 s 5.4 s 5.4 s 5.3 s 5.3 s 5.3 s 5.3 s
Dumping ______________________ 1.8 s 3.5 s 1.8 s 3.5 s 1.6 s 3.5 s 1.6 s 3.5 s
Lowering (empty) _____________ 4.0 s 4.0 s 4.0 s 4.0 s 4.0 s 4.0 s 4.0 s 4.0 s
Attachment Hydraulics
Design ______________________________ „Load-Sensing“ variable axial piston pump with
output and flow control, and pressure cut-off in the
control block
Cooling _____________________________ Hydraulic oil cooling using thermostatically controlled
fan and oil cooler
Filtration ____________________________ Return line filter in the hydraulic reservoir
Control ______________________________ „Liebherr joystick“ with hydrostatic servo control
Lift circuit ___________________________ Lifting, neutral, lowering
and float position controlled by Liebherr joystick with
detent; automatic hoist kick out optional
Tilt circuit ___________________________ Tilt back, neutral, dump
automatic bucket return to dig
L 524 L 528 L 538 L 542
Max. flow ____________________ l/min. 105 141 223 223
Max. pressure __________________ bar 315 330 350 350
Technical data
L 524 - L 542