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PELLE HYDRAULIQUE ET PELLE SPECIALE
Matériel didactique : craie de couleur
Objectif opérationnel : A la fin de la leçon, l'apprenant sera capable de fonctionner la pelle hydraulique.

.a) Révision

Que signifient :

R.E ? , R.D ?

a) Révision

R.E C'est le rayon maximum d'excavation.

R.D Rayon maximal de déchargement.

b) Motivation

Parmi les pelles citez ci-haut, la quelle n'avons-nous  pas étudié ?

b) Motivation

Parmi les pelles citez ci-haut, c'est la pelle hydraulique que nous n'avons pas étudié.

c) Annonce du sujet

Qu'allons-nous étudier aujourd'hui ?

c) Annonce du sujet

Nous allons étudier aujourd'hui la pelle hydraulique.

Quels sont les avantages de système de la pelle hydraulique ?

Qu'est-ce que les chargeurs pelleteuse ? 

PELLE HYDRAULIQUE

Le principe de fonctionnement est identique qu'à celui de la pelle mécanique, la seule différence est que les commandes par câble sont remplacées par des commandes hydrauliques, le mouvement de la flèche et du bras étant assurés par deverin.

Les avantages de ce système sont :

- Une conduite plus souple et plus facile ;

- Un rendement améliore ;

- Une plus grande rapidité ;

- Une économie de la main d'oeuvre puis que le conducteur n'a pas besoin d'être aussi qualifié que celui de pelle mécanique.

La capacité de godet à l'origine limitée à un demi m3 environ considérablement augmenter et atteignant maintenant 2 et 3 m3.

Cependant pour les grandes capacités, les utilisateurs semblent encore préférer la pelle mécanique.

C'est en particulier le cas d'exploitant les carrières mais dans les petites capacités, la pelle hydraulique courant très fortement la pelle mécanique.

L'équipement peut être en pelle, en butte ou en pelle, en rétro et même en benne preneuse mais on équipe ni un niveleuse ni en dragline.

b.3.2. PELLE SPECIALE

3.2.1. LE BACKHOE LOUDER OU CHARGEUSE PELLETEUSE

Ce sont les engins combinés qui comprennent :

- Un chassé porteur en pneu ou en chenille ;

- Un équipement de chargeur à l'avant ;

- Un équipement de pelle hydraulique en rétro à l'arrière ;

Ces engins conviennent bien pour les petits et moyens travaux.

Comment est le fonctionnement de la pelle hydraulique ?

Le principe de fonctionnement de la pelle hydraulique est indiqué qu'à celui de la pelle mécanique.

8.1.28PHP Version147msRequest Duration6MBMemory UsageGET lessons/{id}/{slug}Route
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    • Application (109ms)
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