Technical data, Engine, Hydraulic system – Liebherr R 9800 User Manual

Page 16: Electro-hydraulic controls, Electric system, Swing drive, Uppercarriage, Electric motor (optional)

Advertising
background image

16

R 9800

Technical Data

Engine

2 Cummins diesel engine

Rating per

SAE J 1995

����������������

2 x 1.492 kW/2 x 2,000 HP at 1,800 rpm

Model

������������������������

Cummins QSK60

(USA/EPA Tier 2 or fuel consumption

optimized setting)

Type

��������������������������

16 cylinder V-engine

Displacement

�������������

60 l/3,661 in

3

Bore/Stroke

����������������

159/190 mm / 6.26/7.48 in

or

2 MTU diesel engine

Rating per ISO 3046

����

2 x 1.425 kW/2 x 1,910 HP at 1,800 rpm

Model

������������������������

12V4000 (USA/EPA Tier 2)

Type

��������������������������

12 cylinder V-engine

Displacement

�������������

57,2 l/3,490 in

3

Bore /Stroke

���������������

170/210 mm / 6.69/8.26 in

Engine cooling system

������

fans driven via hydraulic piston motors

Air cleaner

�����������������������

dry-type air cleaner with pre-cleaner,

automatic dust ejector, primary and safety

elements

Fuel tank

�������������������������

17.597 l/4,649 gal

Fuel filtration

��������������������

2 stage fuel filtration with water separator

and electric priming pump

Engine lubrication

�������������

pre-lube starting system

ELIMINATOR™ engine oil automatic

filtration system (Cummins) + centrifugal

filtration

engine oil automatic filtration system (MTU)

+ centrifugal filtration

Electrical system

Voltage

����������������������

24 V

Batteries

��������������������

8 x 170 Ah/12 V (Cummins)/

12 x 170 Ah/12 V (MTU) starting battery

4 x 170 Ah/12 V service systems

Alternator

�������������������

2 x 24 V/260 Amp (brushless)

Engine idling

��������������������

electronically controlled

Electronic engine

power management

����������

engine power and speed sensing over the

entire engine rpm range

Hydraulic System

Attachment and travel drive

Hydraulic pumps

��������

10 variable flow axial piston pumps

Max. flow

�������������������

10 x 750 l/min. / 10 x 198 gpm

Max. hydr. pressure

����

320 bar/4,641 psi

Swing drive

Hydraulic pumps

��������

4 reversible swash plate pumps,

closedloop circuit

Max. flow

�������������������

4 x 535 l/min. / 4 x 141 gpm

Max. hydr. pressure

����

320 bar/4,641 psi

Pump management

����������

electronically controlled pressure and flow

management with oil flow optimisation

Hydraulic tank capacity

�����

5.800 l/1,532 gal

Hydraulic system

capacity

��������������������������

10.000 l/2,642 gal

Hydraulic oil filter

��������������

1 high pressure safety filter after each high

pressure pump + fine filtration of entire

return flow (15/5 μm)

Hydraulic oil cooler

�����������

4 separate coolers, 4 temperature

controlled fans driven via hydraulic piston

motors

Main pump protection

�������

automatic protection against low oil level

Electro-Hydraulic Controls

Servo circuit

��������������������

independent, electronic over hydraulic

proportional controls of each function

Emergency control

������������

emergency lowering of the attachment to

the ground

Power distribution

������������

via monoblock control valves with inte-

grated primary relief valves and flanged on

secondary valves for travel and with inte-

grated proportional and safety valves

Flow summation

���������������

to attachment and travel drive

Electro-hydraulic servo control

Attachment and

swing

������������������������

electronic optimized control via

proportional valves

Travel

�����������������������

electronic optimized control via

proportional valves

Electronic damping

system

����������������������������

Liebherr designed electronic control of

cylinder end-position

Electric System

Electric isolation

���������������

easy accessible battery isolations

Working lights

������������������

LED lights:

– 4 on working attachment

– 4 on RHS of uppercarriage

– 4 on LHS of uppercarriage

– 2 on counterweight

– 2 on cab

Emergency stop switches

��

at ground level, in hydraulic compartment,

in engine and pumps compartment and in

operator cab

Electrical wiring

����������������

heavy duty execution in IP 65 standard for

operating conditions of – 50 °C to 100 °C/

– 58 °F to 212 °F

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 – 3.6 rpm

Swing-holding brake

���������

4 hydraulically released, maintenance-free,

external multi-disc brakes

Uppercarriage

Design

����������������������������

torsion resistant designed upper frame in

box type structure for superior strength and

durability

Attachment mounting

�������

parallel longitudinal main girders in

box-section structure

Machine access

���������������

45° access system with handrails on the

cab side of the uppercarriage. Full con-

trolled descent in case of emergency stop.

Additional emergency ladder fitted near the

cab

Electric Motor (optional)

2 electric motors

Power output

�������������������

2 x 1.700 kW/2,280 HP

Type

�������������������������������

3 phase AC squirrel cage motor

Voltage

����������������������������

6,600 V, other voltage on request

Frequency

�����������������������

50 Hz (or 60 Hz)

Revolutions

����������������������

1,500 rpm or 1,800 rpm

Motor cooling

������������������

integrated air-to-air heat exchanger

Starting method

���������������

inrush current limited to 2,2 full load current

Starting sequence

������������

successive startup of electric motors

Advertising