JI Case Europe, the construction and equipment subsidiary of US
firm Tenneco, ushered in Intermat '94 with a factory visit to
Crepy-en-Valois.
The French factory, which in recent years has had 300 million
francs pumped into production tooling, has now added the 1188
Powersensor excavator to its production schedule.
A replacement for the 1088, the 1188 not only offers im proved
cycle times, but is also sharp on style.
Some of its features include Powersensing hydraulics, a new
chassis, a curved boom - already present on the 1288 - and a
restyled cab.
Over its predecessor, the 1188 Powersensor also offers greater
service accessibility.
The Powersensor hydraulic system is fed by two main pumps: one twin
block pump with variable displacement supplies the drive motors and
the attachments, while the second monobloc pump, with fixed
displacement, powers the upperstructure swing and absorbs and uses
the flow not needed in the attachment circuit. Respective flow for
the pumps is 320 litres/min and 88 litres/min. Flow to the monobloc
system represents a 32 litre/min in crease on the 1088s. Pressure
remains at 350 bar. The system is designed for independent and
simultaneous control of all work and travel functions.
'With a different type of pump the 1188 has overcome the slight
slew problems of the 1088,' says UK construction and equipment
sales manager, David Sunshine.
In operation, the excavator's on-board computer synchronises the
hydraulic flow to the engine's speed in each of the three modes.
Powersensing ensures that there is always full power available at
the pumps.
Lift capacity for the 1188 remains the same as the 1088, as does
the engine size. Power is supplied by a sound-proofed Case 5.9
litre six cylinder turbo charged diesel engine with maximum output
of 104.4kW.
The five available versions of the 1188 comprise two tracked and
three wheeled models. Operating weights range from 21.3t to 23.4t
for the tracked machines and 18.8t to 20.4t for the wheeled
models.
To date, Crepy-en-Valois has produced 17 1188 excavators. This
July, the first 1188 will be manufactured for retail sale. Using
the current factory processes, many of which have been automated,
average assembly time for an excavator in the 12t-30t class is
between nine to 10 days.
In the forthcoming months, as part of a three year restructuring
programme, Crepy-en-Valois will also be used to manufacture Case's
range of backhoe loaders. These are currently produced in
Vierzon.
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