Liebherr TA 230 Litronic - Manual (Page 16)

30 // Quarrying Quarrying // 31
“We have positive experience with the
R 964 C SME. It was specially developed for
use in quarries, has a robust construction
and is extremely versatile.”
Alexandre Pfeiffer, technical manager of the quarry
Company profile
Carrière des Grands Caous
Quarrying in profile: Carrière des Grands Caous
In the Grands Caous quarry, a Liebherr L 586 is
used to load the end products.
To operate a hydraulic excavator economically, the teeth must have the right shape for the intended application. Liebherr’s new,
patented tooth system provides the right solution for every application. It consists of a tooth adapter, tooth, securing bolt with lock
and protective plug. To change a tooth, all that is needed is a simple removal tool. No hammer is needed. The securing bolt, which
connects the tooth and the adapter, can be quickly and easily removed by one person without the need for great force.
The advantages of the Z tooth system:
• Optimised tooth design for a clear increase in productivity.
• High-strength steel for increased wear resistance.
• Lip and side shrouds for increased
bucket service life.
• Long-lasting tooth performance due to
self-sharpening shape.
• Innovative tooth forms designed for every type of ground,
offering better penetration and higher efficiency.
Unlocking the securing bolt with
the locking wrench.
The Liebherr Z tooth system
The right tooth for every application: a comprehensive tooth range and many
different tooth shapes form the basis for a wide variety of tasks.
Sector:
Size of company:
Founded:
Location:
Managing Director:
Website:
Liebherr machines
in operation:
Excavation of building materials
30 employees
1959
Saint-Raphaël (83) / France
Dominique Seux
www.eiffagetravauxpublics.com
R 964 C SME, R 944, L 586
The Liebherr R 964 C SME, which was procured in June 2008,
had clocked up 11,200 operating hours, so it was time to have
it replaced. Inquiries were made to four manufacturers. “With
one of the dealers it was difficult to even get an answer,”
Dominique Seux says. Another dealer was located an hour away
from the quarry. “In an operation like ours, everything revolves
around the excavator that works directly at the face. If that is
out of action for just one hour, the consequences are far-
reaching.” So there remained a third manufacturer and Liebherr,
which both have dealers close to the quarry. “The decision was
made on the final straight,” Dominique Seux confesses. “We
used to have an excavator from another manufacturer, but we
had lots of problems with that. It wasn’t built for use in a quarry,”
the manager adds.
undercarriage of the next larger model in a X-shaped construction
to realise a better distribution of forces and prevent material
from accumulating.”
Several times a year, an inspector from Liebherr customer
services conducts an on-site visit together with his colleague
from Pic. The technical manager of the quarry appreciates such
visits. On one of these visits, a crack was discovered in the
boom. “ Liebherr replaced the defective equipment; that’s what
I call proactive service,” he explains. “Whenever Pic performs a
repair, then everything really is in proper working order.”
It was partly the experience with the excavator and partly the
experience with the Liebherr contractual dealer that led to the
procurement of the R 964 C SME. The decision to purchase was
made by the director of the “Grands Caous” quarry, in agreement
with the local technical manager, the regional director of the
quarries and the regional manager of Eiffage Travaux Publics for
building materials. The new R 964 C SME has an operating
weight of 78 tonnes and is powered by a V8 engine generating
320 kW. It has now taken over the work of the previous Liebherr
excavator and has been loading the four dumper trucks at the
quarry since May 2013.
“By contrast, we only have positive experience with the Liebherr
R 964 C SME,” explains Alexandre Pfeiffer, technical manager
of the quarry. He sees one advantage in the steel construction
of the excavator. “The Liebherr crawler excavator is more flexible
than the excavators made by the competitors, and also the
heaviest,” he adds. Jeoffrey Sausse, commercial director of
Pic, Liebherr’s contractual dealer, explains, “This excavator has
been specially developed for use in quarries. It features the