ENTRETIEN

nExercer une pression légère mais ferme. Limer en direction du coin avant de la dent.

nSoulever la lime de l’acier à chaque retour.

nEffectuer quelques passes fermes sur chaque dent. Limer toutes les gouges de gauche dans un sens. Ensuite, passer à l’autre côté et limer toutes les gouges de droite dans l’autre sens.

nÉliminer la limaille de la lime au moyen d’une brosse métallique.

ATTENTION :

Une chaîne émoussée ou incorrectement affûtée peut causer un régime excessif du moteur pendant la coupe et l’endommager gravement.

AVERTISSEMENT :

Un affûtage incorrect de la chaîne accroît le risque de rebond, ce qui peut causer des blessures graves.

AVERTISSEMENT :

L’utilisation d’une chaîne endommagée peut causer des blessures graves.

ANGLE D’AFFÛTAGE DE LA PLAQUE SUPÉRIEURE

Voir la figure 42

n CORRECT 30° − Les porte-limes sont dotés de repères permettant d’aligner la lime correctement, de façon à obtenir un angle de plaque supérieure satisfaisant.

n MOINS DE 30° − Pour le tronçonnage

n PLUS DE 30° − Tranchant aminci, s’émousse rapidement.

ANGLE DE PLAQUE LATÉRALE

Voir la figure 43.

n CORRECT 80° – Obtenu automatiquement si une lime de diamètre approprié est placée dans le porte-limes.

n CROCHET – « Accroche » le bois et s’émousse rapidement, ce qui accroît le risque de REBOND. Résulte de l’emploi d’une lime de trop petit diamètre ou d’une lime tenue trop bas.

DENTS DE

GAUCHE

DENTS DE

DROITE

Fig. 41

ANGLE D’AFFÛTAGE DE LA PLAQUE SUPÉRIEURE

30°

 

CORRECT

MOINS DE 30°

PLUS DE 30°

INCORRECT

Fig. 42

ANGLE D’AFFÛTAGE DE LA PLAQUE LATÉRALE

 

80°

 

CORRECT

CROCHET

ANGLE ARRIÈRE

INCORRECT

Fig. 43

n ANGLE ARRIÈRE – Nécessite une pression d’attaque excessive, causant l’usure prématurée du guide et de la chaîne. Résulte de l’emploi d’une lime de trop grand diamètre ou d’une lime tenue trop haut.

Page 27 — Français

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Image 57
Homelite UT43103 Angle D’AFFÛTAGE DE LA Plaque Supérieure, Angle DE Plaque Latérale, Dents DE Gauche Droite

UT43103 specifications

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