{"id":14239,"date":"2024-11-09T13:37:26","date_gmt":"2024-11-09T13:37:26","guid":{"rendered":"https:\/\/hydraflu.com\/?p=14239"},"modified":"2024-11-09T13:37:26","modified_gmt":"2024-11-09T13:37:26","slug":"preventing-hydraulic-oil-freezing-tips-for-winter-maintenance","status":"publish","type":"post","link":"https:\/\/hydraflu.com\/fr\/conseils-pour-prevenir-le-gel-de-lhuile-hydraulique-et-lentretien-hivernal\/","title":{"rendered":"Pr\u00e9vention du gel de l&#039;huile hydraulique : Conseils pour l&#039;entretien hivernal"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">L&#039;huile hydraulique et l&#039;hiver ne font pas bon m\u00e9nage. Il est donc essentiel pour un op\u00e9rateur de savoir si l&#039;huile hydraulique g\u00e8le. La r\u00e9ponse est oui. L&#039;huile hydraulique g\u00e8le et devient inutilisable aux alentours de -23 \u00b0C. Cet article vous expliquera l&#039;impact du froid sur l&#039;huile hydraulique.<\/span><\/p>\n<h2><b>Comprendre les propri\u00e9t\u00e9s de l&#039;huile hydraulique \u00e0 basses temp\u00e9ratures<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Le froid peut transformer l&#039;huile hydraulique en un lubrifiant \u00e0 faible viscosit\u00e9, l&#039;emp\u00eachant ainsi de lubrifier correctement. Vous savez d\u00e9j\u00e0 que l&#039;huile hydraulique est essentielle au bon fonctionnement de tout syst\u00e8me et m\u00e9canisme hydraulique. Elle assure le pompage des pompes, le mouvement des v\u00e9rins et le bon d\u00e9roulement de l&#039;ensemble du syst\u00e8me. Comme tout fluide, elle est sensible aux variations de temp\u00e9rature et de chaleur.<\/span><\/p>\n<h3><b>Changements de viscosit\u00e9 et huile hydraulique<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Lorsque les temp\u00e9ratures chutent, l&#039;huile hydraulique s&#039;\u00e9paissit et sa viscosit\u00e9 augmente. Pour mieux comprendre, imaginez essayer de faire passer du miel \u00e0 travers une paille tr\u00e8s fine en plein hiver. C&#039;est en substance ce \u00e0 quoi votre syst\u00e8me hydraulique est confront\u00e9 lorsque l&#039;huile devient trop \u00e9paisse par temps froid.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">La viscosit\u00e9 est une mesure de la capacit\u00e9 d&#039;un fluide \u00e0 s&#039;\u00e9couler. Pour les syst\u00e8mes hydrauliques, le maintien d&#039;une viscosit\u00e9 ad\u00e9quate est essentiel \u00e0 un fonctionnement optimal. Cependant, une baisse de temp\u00e9rature augmente la viscosit\u00e9 et rend la lubrification du syst\u00e8me plus difficile.<\/span><\/p>\n<h3><b>Pourquoi l&#039;huile hydraulique s&#039;\u00e9paissit-elle en hiver ?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Vous vous demandez peut-\u00eatre pourquoi l&#039;huile hydraulique s&#039;\u00e9paissit en hiver. C&#039;est parce qu&#039;elle est compos\u00e9e d&#039;huiles de base et d&#039;additifs qui agissent de concert pour assurer un \u00e9quilibre optimal entre lubrification et performance. Par temps froid, l&#039;huile de base s&#039;\u00e9paissit, et les additifs peuvent avoir du mal \u00e0 compenser ce ph\u00e9nom\u00e8ne.<\/span><\/p>\n<h2><b>Comment le froid affecte les syst\u00e8mes hydrauliques<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Le froid n&#039;affecte pas seulement l&#039;huile, mais aussi l&#039;ensemble du syst\u00e8me hydraulique. La contraction thermique rigidifie les flexibles et les joints se r\u00e9tractent. De plus, les composants m\u00e9talliques subissent \u00e9galement une contraction. Mais parlons plus pr\u00e9cis\u00e9ment de ce qui se passe au niveau de\u2026<\/span><a href=\"https:\/\/hydraflu.com\/fr\/pompe-hydraulique\/\"> <span style=\"font-weight: 400;\">pompe hydraulique<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h3><b>Effets sur le rendement des pompes hydrauliques<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Les pompes hydrauliques acheminent le fluide vers le syst\u00e8me pour assurer son fonctionnement. Lorsque le fluide s&#039;\u00e9paissit, la pompe doit fournir un effort accru pour le faire circuler. Il en r\u00e9sulte une augmentation de la r\u00e9sistance \u00e0 l&#039;\u00e9coulement et une r\u00e9duction du d\u00e9bit, ce qui diminue le rendement. Ceci engendre une contrainte accrue sur les pompes, pouvant conduire \u00e0 une surchauffe, une usure pr\u00e9matur\u00e9e et une panne du syst\u00e8me.<\/span><\/p>\n<h2><b>Normes\/Codes internationaux relatifs au fonctionnement des huiles hydrauliques par temps froid<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">N\u00e9gliger l&#039;entretien hivernal peut avoir des cons\u00e9quences bien plus graves qu&#039;une simple baisse de performance. Cela peut entra\u00eener des fissures.<\/span><a href=\"https:\/\/hydraflu.com\/fr\/flexibles-et-raccords-hydrauliques\/\"> <span style=\"font-weight: 400;\">tuyaux<\/span><\/a><span style=\"font-weight: 400;\">, Des joints d\u00e9fectueux et une panne hydraulique compl\u00e8te peuvent survenir. Il s&#039;agit d&#039;un facteur crucial pour le syst\u00e8me. De nombreuses organisations ont \u00e9labor\u00e9 des codes et des normes relatifs \u00e0 l&#039;huile hydraulique et ont d\u00e9fini des param\u00e8tres pr\u00e9cis. Le tableau suivant pr\u00e9sente quelques-uns de ces codes et leurs d\u00e9tails\u00a0:<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Standard<\/b><\/td>\n<td><b>Organisation<\/b><\/td>\n<td><b>Param\u00e8tre<\/b><\/td>\n<td><b>Description<\/b><\/td>\n<td><b>Valeur\/Plage<\/b><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.iso.org\/standard\/60483.html\"><span style=\"font-weight: 400;\">ISO 6743-4<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">ISO (Organisation internationale de normalisation)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Fluidit\u00e9 \u00e0 basse temp\u00e9rature (point d&#039;\u00e9coulement)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">D\u00e9finit les classes de fluides hydrauliques, y compris le point d&#039;\u00e9coulement<\/span><\/td>\n<td><span style=\"font-weight: 400;\">En g\u00e9n\u00e9ral, \u2264 -40\u00b0C pour les climats froids<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.googleadservices.com\/pagead\/aclk?sa=L&amp;ai=DChcSEwjPsaal286JAxWTsYMHHb6NMFYYABAAGgJlZg&amp;co=1&amp;ase=2&amp;gclid=Cj0KCQiAire5BhCNARIsAM53K1irCuI_y0x7qVFxh82SmkznVZyWwltycXtYDwkSmiIiQD8lTRSRCCwaAmEmEALw_wcB&amp;ohost=www.google.com&amp;cid=CAESVuD2jwuQ61z81IZIWYpIo10N85iKQwblM6HKi7RDr0S_vxNxlgS3fILwN8aG9u8-lCP8E-s3M1GjirqCIwXFDONet2K0nfk7mdyTprn3J3z2K4Oecowa&amp;sig=AOD64_0jc8zFfxwrHODgzJUWRm_2lMlUwA&amp;q&amp;nis=4&amp;adurl&amp;ved=2ahUKEwjwqqGl286JAxXlRfEDHfSnA9QQ0Qx6BAgKEAE\"><span style=\"font-weight: 400;\">ASTM D97<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">ASTM International<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Point d&#039;\u00e9coulement<\/span><\/td>\n<td><span style=\"font-weight: 400;\">La temp\u00e9rature la plus basse \u00e0 laquelle le p\u00e9trole continue de couler<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Cela varie en fonction de la qualit\u00e9 de l&#039;huile hydraulique, g\u00e9n\u00e9ralement entre -20 \u00b0C et -50 \u00b0C.<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.astm.org\/d0445-21e01.html\"><span style=\"font-weight: 400;\">ISO 3104 \/ ASTM D445<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">ISO\/ASTM<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Viscosit\u00e9 cin\u00e9matique \u00e0 basse temp\u00e9rature<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Mesure les caract\u00e9ristiques d&#039;\u00e9coulement \u00e0 des temp\u00e9ratures sp\u00e9cifiques<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Les valeurs varient, mais par exemple, 860 mm\u00b2\/s \u00e0 -40 \u00b0C pour certaines huiles.<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.en-standard.eu\/din-51524-3-pressure-fluids-hydraulic-oils-part-3-hvlp-hydraulic-oils-minimum-requirements\/?srsltid=AfmBOorBrABIwu4GuRSw0Dl1EOFMnhZyH3-BJlBP_AcEcaW-xvrWcYFr\"><span style=\"font-weight: 400;\">DIN 51524 Partie 3<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Institut allemand de normalisation<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Fluide hydraulique (point d&#039;\u00e9coulement)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Exigences relatives aux huiles hydrauliques haute performance<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Point d&#039;\u00e9coulement g\u00e9n\u00e9ralement \u2264 -40 \u00b0C<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/petroleumservicecompany.com\/blog\/what-is-mil-h-5606\/?srsltid=AfmBOor-lMeXApxUxY_VNtsVs96Czy4bTAXFLfh_e9DXwQjJWSM646i7\"><span style=\"font-weight: 400;\">MIL-H-5606<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Arm\u00e9e am\u00e9ricaine<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Fonctionnement \u00e0 basse temp\u00e9rature<\/span><\/td>\n<td><span style=\"font-weight: 400;\">D\u00e9finit la viscosit\u00e9 et les points d&#039;\u00e9coulement des huiles hydrauliques de qualit\u00e9 militaire<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Point d&#039;\u00e9coulement \u2264 -65\u00b0F (-54\u00b0C)<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.sae.org\/standards\/content\/j300_201501\/\"><span style=\"font-weight: 400;\">SAE J300<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">SAE International<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Grades de viscosit\u00e9 (simulation de d\u00e9marrage \u00e0 froid)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Sp\u00e9cifie les performances de d\u00e9marrage \u00e0 basse temp\u00e9rature<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Cela varie en fonction du degr\u00e9 de viscosit\u00e9\u00a0: 0W, 5W, etc.<\/span><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.en-standard.eu\/bs-4231-1992-classification-for-viscosity-grades-of-industrial-liquid-lubricants\/?srsltid=AfmBOoqfX0D82g3elnTqxxpJEUAZFz9dGftaPFLA3xk13HkYnGDyXYUz\"><span style=\"font-weight: 400;\">BS 4231<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Normes britanniques<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Capacit\u00e9 de pompage \u00e0 basse temp\u00e9rature<\/span><\/td>\n<td><span style=\"font-weight: 400;\">D\u00e9finit la temp\u00e9rature minimale de fonctionnement pour le pompage<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Typiquement, \u2264 -30\u00b0C \u00e0 -40\u00b0C<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><b>Choisir l&#039;huile hydraulique adapt\u00e9e aux conditions hivernales<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">L&#039;un des meilleurs moyens d&#039;assurer le bon fonctionnement de vos syst\u00e8mes hydrauliques en hiver est d&#039;utiliser l&#039;huile appropri\u00e9e. Comme indiqu\u00e9 pr\u00e9c\u00e9demment, diff\u00e9rentes normes sont appliqu\u00e9es afin d&#039;utiliser des huiles hydrauliques de compositions diff\u00e9rentes, adapt\u00e9es aux variations de temp\u00e9rature.<\/span><\/p>\n<h3><b>Fluides hydrauliques d&#039;hiver vs. fluides hydrauliques ordinaires<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Les fluides hydrauliques d&#039;hiver sont sp\u00e9cialement con\u00e7us pour fonctionner dans des climats froids. Ils contiennent des additifs qui leur permettent de maintenir une viscosit\u00e9 plus faible par temps froid. Ces huiles sont formul\u00e9es pour faciliter leur \u00e9coulement dans ces conditions, ce qui simplifie le fonctionnement de la pompe et pr\u00e9serve l&#039;efficacit\u00e9 de l&#039;ensemble du syst\u00e8me.<\/span><\/p>\n<h3><b>Indice de viscosit\u00e9 de l&#039;huile hydraulique<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Plus l&#039;indice de viscosit\u00e9 (IV) est \u00e9lev\u00e9, meilleures seront les performances de l&#039;huile sur une large plage de temp\u00e9ratures. Il est donc toujours pr\u00e9f\u00e9rable d&#039;utiliser des huiles hydrauliques \u00e0 IV \u00e9lev\u00e9.<\/span><\/p>\n<h2><b>Conseils pour maintenir le bon fonctionnement de votre huile hydraulique par temps froid<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Apr\u00e8s avoir pris connaissance de tous les d\u00e9tails, vous pouvez maintenant d\u00e9couvrir quelques conseils et recommandations de base pour assurer le bon fonctionnement de l&#039;huile hydraulique en conditions hivernales. Ces conseils vous aideront \u00e0 maintenir le syst\u00e8me en marche malgr\u00e9 le gel ext\u00e9rieur.<\/span><\/p>\n<h3><b>1.<\/b><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 <\/span><b>Maintenir l&#039;huile hydraulique \u00e0 temp\u00e9rature optimale<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Maintenir l&#039;huile hydraulique \u00e0 temp\u00e9rature constante gr\u00e2ce \u00e0 des couvertures chauffantes ou des r\u00e9sistances \u00e9lectriques permet de pr\u00e9server une temp\u00e9rature d&#039;huile stable pendant les p\u00e9riodes d&#039;inactivit\u00e9. Ceci pr\u00e9vient l&#039;\u00e9paississement de l&#039;huile et facilite le d\u00e9marrage. Ainsi, la dur\u00e9e de vie de l&#039;\u00e9quipement s&#039;en trouve prolong\u00e9e.<\/span><\/p>\n<h3><b>2.<\/b><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 <\/span><b>\u00c9vitez les changements brusques de temp\u00e9rature.<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">R\u00e9chauffez progressivement les syst\u00e8mes hydrauliques avant utilisation. Cela \u00e9vitera les chocs thermiques sur les composants. Veillez \u00e9galement \u00e0 toujours respecter les proc\u00e9dures de pr\u00e9chauffage avant utilisation et \u00e9vitez les variations brusques de temp\u00e9rature afin de maintenir l&#039;efficacit\u00e9 du syst\u00e8me.<\/span><\/p>\n<h3><b>3.<\/b><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 <\/span><b>R\u00e9duisez votre exposition \u00e0 l&#039;ext\u00e9rieur<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Les temp\u00e9ratures ext\u00e9rieures extr\u00eames r\u00e9duisent la dur\u00e9e de vie des machines. C&#039;est pourquoi il est important de limiter leur utilisation en ext\u00e9rieur afin d&#039;\u00e9viter tout dommage. Rangez-les toujours \u00e0 l&#039;int\u00e9rieur apr\u00e8s utilisation.<\/span><\/p>\n<h3><b>4.<\/b><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 <\/span><b>Contr\u00f4lez r\u00e9guli\u00e8rement l&#039;\u00e9tat de l&#039;huile<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">L&#039;eau a un point de cong\u00e9lation bas et l&#039;humidit\u00e9 g\u00e8le rapidement. C&#039;est pourquoi il est important de contr\u00f4ler r\u00e9guli\u00e8rement l&#039;huile hydraulique afin de d\u00e9tecter toute contamination ou pr\u00e9sence d&#039;humidit\u00e9. Il convient \u00e9galement d&#039;inspecter les filtres \u00e0 huile et de les remplacer si n\u00e9cessaire. Une huile propre et exempte d&#039;humidit\u00e9 garantit en effet un meilleur rendement.<\/span><\/p>\n<h3><b>5.<\/b><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 <\/span><b>Syst\u00e8mes de circulation d&#039;huile<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Vous pouvez utiliser des syst\u00e8mes de circulation d&#039;huile pour maintenir l&#039;huile en mouvement pendant les arr\u00eats de production. Cela permet d&#039;\u00e9viter l&#039;\u00e9paississement de l&#039;huile et garantit un d\u00e9bit constant. Maintenir l&#039;huile en mouvement est essentiel au maintien de l&#039;efficacit\u00e9.<\/span><\/p>\n<h3><b>6.<\/b><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 <\/span><b>Couvrir les machines lorsqu&#039;elles sont \u00e0 l&#039;ext\u00e9rieur<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Si vous ne pouvez pas rentrer les machines \u00e0 l&#039;int\u00e9rieur, vous devez les recouvrir de b\u00e2ches pour les prot\u00e9ger du froid, du vent et de la neige. Cela limitera l&#039;accumulation d&#039;humidit\u00e9 en assurant un environnement sec autour d&#039;elles.<\/span><\/p>\n<h2><b>Le r\u00f4le des additifs pour huile hydraulique dans l&#039;am\u00e9lioration des performances hivernales<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Les additifs peuvent consid\u00e9rablement am\u00e9liorer les performances de votre syst\u00e8me hydraulique en hiver. Il existe des additifs sp\u00e9cifiques con\u00e7us pour optimiser la fluidit\u00e9 des huiles hydrauliques d&#039;usage g\u00e9n\u00e9ral par temps froid. Ces additifs sont formul\u00e9s avec des propri\u00e9t\u00e9s antigel afin d&#039;emp\u00eacher l&#039;\u00e9paississement excessif de l&#039;huile. Ils permettent de r\u00e9duire l&#039;augmentation de la viscosit\u00e9 et d&#039;assurer un \u00e9coulement r\u00e9gulier.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Si vous travaillez dans des r\u00e9gions o\u00f9 les temp\u00e9ratures descendent fr\u00e9quemment en dessous de z\u00e9ro, l&#039;ajout d&#039;un additif de performance hivernale est la meilleure solution. Ces additifs aident \u00e0 pr\u00e9venir la g\u00e9lification et \u00e0 maintenir la lubrification, prot\u00e9geant ainsi votre syst\u00e8me contre les dommages.<\/span><\/p>\n<h2><b>Liste de v\u00e9rification pour l&#039;inspection hivernale<\/b><\/h2>\n<ol>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Le froid peut provoquer des fissures dans les tuyaux et des d\u00e9faillances au niveau des joints. Vous pouvez inspecter toutes les pi\u00e8ces en caoutchouc afin de d\u00e9tecter tout dommage.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Vous devez vous assurer que le niveau d&#039;huile est ad\u00e9quat ; sinon, faites l&#039;appoint et amenez-le au niveau appropri\u00e9.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Il est tr\u00e8s important de pr\u00e9chauffer votre \u00e9quipement avant de commencer \u00e0 l&#039;utiliser.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">V\u00e9rifiez que l&#039;huile n&#039;est pas trouble ou contamin\u00e9e, afin de d\u00e9tecter tout probl\u00e8me d&#039;humidit\u00e9 ou autre.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Les basses temp\u00e9ratures r\u00e9duisent l&#039;efficacit\u00e9 des batteries, assurez-vous donc qu&#039;elles soient compl\u00e8tement charg\u00e9es.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Inspectez et, si n\u00e9cessaire, remplacez les filtres hydrauliques pour \u00e9viter les obstructions. Les obstructions sont aggrav\u00e9es par temps froid.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">V\u00e9rifiez et confirmez que les r\u00e9sistances ou les couvertures thermiques fonctionnent correctement pour maintenir la temp\u00e9rature de l&#039;huile.<\/span><\/li>\n<\/ol>\n<h2><b>Conclusion &#8211; Importance of Regular Maintenance in Cold Weather<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">L&#039;huile hydraulique peut geler, mais surtout, elle s&#039;\u00e9paissit et devient plus visqueuse bien avant d&#039;atteindre son point de cong\u00e9lation. La maintenance pr\u00e9ventive est toujours moins co\u00fbteuse que les arr\u00eats de production. En utilisant des fluides hydrauliques adapt\u00e9s \u00e0 l&#039;hiver, en pr\u00e9chauffant vos \u00e9quipements et en assurant un entretien r\u00e9gulier, vous garantissez le bon fonctionnement de vos syst\u00e8mes hydrauliques. Pour en savoir plus sur les huiles hydrauliques, consultez [lien\/adresse e-mail\/etc.].<\/span><a href=\"https:\/\/hydraflu.com\/fr\/contactez-nous\/\"> <span style=\"font-weight: 400;\">Contactez-nous<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>&nbsp; Hydraulic oil and winter aren\u2019t exactly best friends. It is hence very important for an operator to know \u201cDoes hydraulic oil freeze\u201d. 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