Liebherr L 556 - Manual (Page 18)

18 // Quarrying
“SOMTP Centre can use the opportunity to present the R 950
SME to us as an alternative to its most important competitive
products,” Fabien Denis adds.
“This dealer really has orientated itself toward our requirements.
If necessary, he calls in the evening after production has stopped,”
says Alexandre Favin, who also stresses the responsiveness of
the dealer. When excavator driver Jean-François Méry explained
that it is sometimes difficult to dig into the piles
of material, Fabien Denis proposed trying out more pointed teeth.
“It’s easier with the more pointed teeth,” comments Jean-Francois
Mery. “We have now fitted the backhoe bucket with five teeth of
this form,” explains Alexandre Favin.
The Liebherr engine in the R 950 SME has six cylinders and a
power output of 295 ch, and it complies with European emissions
standard Tier 4i/Tier IIIB. It is equipped with a particulate filter
with active regeneration. “That is something new for us,” Alexandre
Favin says. The degree of contamination is shown on the monitor
on the cab display. When regeneration is due, it starts automati-
cally without interrupting work. “I can defer regeneration, for
example, to the next day if it becomes due near the end of the
day,” Jean-François Méry reports.
The R 950 SME has been in operation since the end of May 2013.
“It is dynamic and has a high rpm speed,” Jean-François Méry
declares. He also appreciates the comfort of the driver’s cab and
the low noise level of the excavator.
The dumper truck is now loaded in nine cycles instead of seven.
“That is just what we need,” says Alexandre Favin. “It is a highly
versatile excavator.” Half the time it is used in production. The
rest of the time it is used for spoil work, loading blocks, and
exploratory work at new parts of the quarry. “The R 950 SME is
equipped for high-volume turnover, which extends its range of
applications. And the excavator driver is able to choose the most
suitable of four working modes for his current work,” Alexandre
Favin adds. “In addition, our excavator driver asked us to choose
the optional boom float function, which prevent unnecessary
“The first R 950 SME
within the Eurovia Group.”
Alexandre Favin, operations manager of
the “Carrière des Grands Usages” Quarry
Quarrying in profile: Carrière des Grands Usages