{"id":76,"date":"2026-04-08T10:28:26","date_gmt":"2026-04-08T10:28:26","guid":{"rendered":"https:\/\/www.mechabro.com\/blog\/How-to-maintain-and-service-the-rotary-reducer-of-concrete-pump-truck"},"modified":"2026-04-08T10:28:26","modified_gmt":"2026-04-08T10:28:26","slug":"how-to-maintain-and-service-the-rotary-reducer-of-concrete-pump-truck","status":"publish","type":"post","link":"https:\/\/www.mechabro.com\/fr\/how-to-maintain-and-service-the-rotary-reducer-of-concrete-pump-truck\/","title":{"rendered":"Comment entretenir et r\u00e9parer le r\u00e9ducteur rotatif d'un camion-pompe \u00e0 b\u00e9ton"},"content":{"rendered":"
\n

Le r\u00e9ducteur rotatif du\u00a0\u00a0camion pompe \u00e0 b\u00e9ton<\/strong><\/a>\u00a0 est rempli d'huile de transmission API GL4 de viscosit\u00e9 SAE 90 (l'huile pour engrenages Shell VG150 est vers\u00e9e en usine). La quantit\u00e9 d'huile pour engrenages \u00e0 ajouter varie en fonction du type de r\u00e9ducteur (environ 8 litres pour les mod\u00e8les Bruvini et environ 4 litres pour les mod\u00e8les Comman). Elle doit \u00eatre remplac\u00e9e toutes les 500 heures de pompage ou tous les six mois.<\/p>\n

Inspection quotidienne du r\u00e9ducteur rotatif<\/h2>\n

1. Nettoyez quotidiennement et en temps voulu le sable et le gravier pr\u00e9sents dans le m\u00e9canisme du palier de rotation et v\u00e9rifiez si les boulons du palier de rotation et ceux fixant le r\u00e9ducteur sont desserr\u00e9s ou cass\u00e9s. Si vous constatez que des boulons sont desserr\u00e9s ou cass\u00e9s, ils doivent \u00eatre resserr\u00e9s ou remplac\u00e9s ;<\/p>\n

\"1\"<\/p>\n

2. Ouvrez le capot sup\u00e9rieur : vous verrez alors les engrenages du r\u00e9ducteur et la couronne dent\u00e9e du plateau tournant. Veillez \u00e0 nettoyer r\u00e9guli\u00e8rement le mortier et les salissures pr\u00e9sents sur les engrenages en prise, et appliquez de la graisse sur le r\u00e9ducteur, c'est-\u00e0-dire sous le pignon, afin d'emp\u00eacher l'eau de p\u00e9n\u00e9trer dans le r\u00e9ducteur ;<\/p>\n

\"2\"<\/p>\n

3. V\u00e9rifiez chaque mois la qualit\u00e9 et le niveau d'huile du r\u00e9ducteur ;<\/p>\n

4. Remplacer l'huile pour engrenages toutes les 500 heures de fonctionnement ; ou remplacer l'huile pour engrenages chaque hiver avant l'arriv\u00e9e du gel ;<\/p>\n

5. Pour les r\u00e9ducteurs dont le temps de fonctionnement d\u00e9passe 500 heures, le jeu axial du r\u00e9ducteur doit \u00eatre v\u00e9rifi\u00e9 une fois par mois (Remarque : 800 heures correspondent \u00e0 la p\u00e9riode o\u00f9 les d\u00e9faillances sont les plus fr\u00e9quentes) ;<\/p>\n

6. La m\u00e9thode pr\u00e9cise d'inspection r\u00e9guli\u00e8re est la suivante :<\/p>\n

Retirez le capot sup\u00e9rieur et utilisez la tige de levage pour extraire le petit engrenage du r\u00e9ducteur. S'il y a un jeu (m\u00eame si celui-ci n'est que de 1 mm), cela signifie que le roulement du r\u00e9ducteur est endommag\u00e9 et qu'il faut imm\u00e9diatement arr\u00eater la machine et le remplacer ; les r\u00e9f\u00e9rences des deux roulements sont : 32220, 30217. Il est pr\u00e9f\u00e9rable de demander aux clients d'acheter des roulements import\u00e9s. Parmi les marques nationales, optez pour les roulements Wafangdian ou Harbin.<\/p>\n

Les cons\u00e9quences n\u00e9fastes d'un contr\u00f4le tardif du r\u00e9ducteur rotatif<\/h2>\n

1. Lorsque le roulement du r\u00e9ducteur est us\u00e9, l'engr\u00e8nement des pignons a tendance \u00e0 se desserrer et la tourelle de commande ne peut plus \u00eatre verrouill\u00e9e, ce qui peut entra\u00eener des accidents li\u00e9s \u00e0 la s\u00e9curit\u00e9.<\/p>\n

2. Si les boulons de la tourelle sont desserr\u00e9s ou cass\u00e9s et qu'aucune inspection n'est effectu\u00e9e en temps voulu, la couronne dent\u00e9e se desserrera et ne s'engrenera plus correctement, ce qui rendra la rotation difficile et augmentera le risque de pannes graves.<\/p>\n

3. Si l'hiver arrive et que le joint du r\u00e9ducteur n'est pas v\u00e9rifi\u00e9, l'huile de transmission se m\u00e9langera \u00e0 l'eau et le carter du r\u00e9ducteur g\u00e8lera et se fissurera.<\/p>\n

4. Augmenter les co\u00fbts d'utilisation pour les clients ;<\/p>\n

\u00c9tapes d'entretien du r\u00e9ducteur rotatif<\/h2>\n

1. Laissez le r\u00e9ducteur fonctionner pendant un certain temps. Lorsque la temp\u00e9rature atteint environ 30 degr\u00e9s, d\u00e9vissez le bouchon de vidange d'huile du r\u00e9ducteur, vidangez l'ancienne huile, puis revissez le bouchon.<\/p>\n

2. Nettoyez la zone autour du r\u00e9ducteur \u00e0 l'aide d'un chiffon ;<\/p>\n

3. D\u00e9vissez le couvercle de purge et le bouchon de niveau d'huile, puis versez de l'huile de lubrification par le raccord de remplissage jusqu'\u00e0 ce que de l'huile propre s'\u00e9coule par l'orifice de niveau d'huile ;<\/p>\n

\"3\"<\/p>\n

Avertissement :<\/strong><\/p>\n

Avant l'arriv\u00e9e du gel hivernal, veuillez remplacer l'huile de lubrification \u00e0 l'int\u00e9rieur, sinon le r\u00e9ducteur risque de geler et de se fissurer.<\/strong><\/p>\n

Nouvelles :<\/strong><\/p>\n

\"4\"<\/p>\n

Le 14 juin 2025, la d\u00e9l\u00e9gation africaine participant \u00e0 la 4e Foire \u00e9conomique et commerciale Chine-Afrique a visit\u00e9 l'atelier de reconditionnement de\u00a0\u00a0Hunan Mecha Brothers Technology Co., Ltd<\/strong><\/a>.<\/strong><\/p>\n

\"5\"<\/p>\n

Cady, de la soci\u00e9t\u00e9 Mecha Brothers, a pr\u00e9sent\u00e9 \u00e0 la d\u00e9l\u00e9gation les avantages et les performances des camions-pompes \u00e0 b\u00e9ton reconditionn\u00e9s.<\/p>\n

\"6\"<\/p>\n

A propos de nous :<\/strong><\/p>\n

\"7\"<\/p>\n

Notre soci\u00e9t\u00e9 est une soci\u00e9t\u00e9 commerciale professionnelle pour\u00a0\u00a0machines de construction d'occasion<\/strong><\/a>, avec une \u00e9quipe technique professionnelle. Nous aidons nos clients \u00e0 r\u00e9ussir sur le march\u00e9 international en appliquant les principes de gestion int\u00e8gre, de haute qualit\u00e9 et de coop\u00e9ration gagnant-gagnant.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

The rotary reducer of the\u00a0\u00a0concrete pump truck\u00a0 is filled with API GL4 transmission oil with a viscosity grade of SAE 90 (Shell VG150 gear oil is filled at the factory). Different amounts of gear oil are added according to differ…<\/p>","protected":false},"author":2,"featured_media":10078,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rs_blank_template":"","rs_page_bg_color":"","slide_template_v7":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[17],"tags":[],"class_list":["post-76","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-company-news"],"blocksy_meta":[],"yoast_head":"\nHow To Maintain And Service The Rotary Reducer Of Concrete Pump Truck - Hunan Mecha Brothers Technology Co., Ltd.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mechabro.com\/fr\/how-to-maintain-and-service-the-rotary-reducer-of-concrete-pump-truck\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How To Maintain And Service The Rotary Reducer Of Concrete Pump Truck - Hunan Mecha Brothers Technology Co., Ltd.\" \/>\n<meta property=\"og:description\" content=\"The rotary reducer of the\u00a0\u00a0concrete pump truck\u00a0 is filled with API GL4 transmission oil with a viscosity grade of SAE 90 (Shell VG150 gear oil is filled at the factory). 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