{"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":"dicas-para-evitar-o-congelamento-do-oleo-hidraulico-durante-a-manutencao-de-inverno","status":"publish","type":"post","link":"https:\/\/hydraflu.com\/pt\/preventing-hydraulic-oil-freezing-tips-for-winter-maintenance\/","title":{"rendered":"Preven\u00e7\u00e3o do congelamento do \u00f3leo hidr\u00e1ulico: dicas para a manuten\u00e7\u00e3o de inverno."},"content":{"rendered":"<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">\u00d3leo hidr\u00e1ulico e inverno n\u00e3o combinam muito bem. Por isso, \u00e9 fundamental que o operador saiba se o \u00f3leo hidr\u00e1ulico congela. E a resposta curta \u00e9 sim. O \u00f3leo hidr\u00e1ulico congela e torna-se inutiliz\u00e1vel a temperaturas pr\u00f3ximas de -23\u00b0C (-10\u00b0F). Neste artigo, voc\u00ea aprender\u00e1 sobre o impacto do clima frio no \u00f3leo hidr\u00e1ulico.<\/span><\/p>\n<h2><b>Entendendo as propriedades do \u00f3leo hidr\u00e1ulico em baixas temperaturas<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">O frio pode transformar o \u00f3leo hidr\u00e1ulico em um lubrificante de baixa viscosidade, que deixa de funcionar como tal. Voc\u00ea j\u00e1 sabe que o \u00f3leo hidr\u00e1ulico \u00e9 essencial para o funcionamento de qualquer sistema e mecanismo hidr\u00e1ulico. Ele mant\u00e9m as bombas funcionando, os cilindros em movimento e toda a opera\u00e7\u00e3o operando sem problemas. Assim como qualquer outro fluido, ele \u00e9 afetado por varia\u00e7\u00f5es de temperatura e calor.<\/span><\/p>\n<h3><b>Altera\u00e7\u00f5es na viscosidade do \u00f3leo hidr\u00e1ulico<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Quando as temperaturas caem drasticamente, o \u00f3leo hidr\u00e1ulico engrossa e sua viscosidade aumenta. Para entender melhor, imagine tentar bombear mel por um canudo min\u00fasculo no auge do inverno. \u00c9 basicamente isso que acontece com o seu sistema hidr\u00e1ulico quando o \u00f3leo fica muito viscoso em climas frios.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A viscosidade \u00e9 uma medida da capacidade de escoamento de um fluido. Para sistemas hidr\u00e1ulicos, manter a viscosidade adequada \u00e9 crucial para operar com alta efici\u00eancia. No entanto, a diminui\u00e7\u00e3o da temperatura aumenta a viscosidade e dificulta o bombeamento do fluido no sistema para lubrifica\u00e7\u00e3o.<\/span><\/p>\n<h3><b>Por que o \u00f3leo hidr\u00e1ulico engrossa no inverno?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Mas voc\u00ea pode estar se perguntando por que o inverno torna o \u00f3leo hidr\u00e1ulico mais viscoso. Isso ocorre porque ele \u00e9 composto por \u00f3leos b\u00e1sicos e aditivos que trabalham em conjunto para proporcionar o equil\u00edbrio ideal entre lubrifica\u00e7\u00e3o e desempenho. Em temperaturas frias, o \u00f3leo b\u00e1sico fica mais viscoso e os aditivos podem n\u00e3o conseguir neutralizar esse efeito de forma eficaz.<\/span><\/p>\n<h2><b>Como o clima frio afeta os sistemas hidr\u00e1ulicos<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">O clima frio n\u00e3o afeta apenas o \u00f3leo, mas tamb\u00e9m todo o sistema hidr\u00e1ulico. A contra\u00e7\u00e3o t\u00e9rmica enrijece as mangueiras e as veda\u00e7\u00f5es se contraem. Al\u00e9m disso, os componentes met\u00e1licos tamb\u00e9m sofrem contra\u00e7\u00e3o. Mas vamos falar especificamente sobre o que acontece com o...<\/span><a href=\"https:\/\/hydraflu.com\/pt\/bomba-hidraulica\/\"> <span style=\"font-weight: 400;\">bomba hidr\u00e1ulica<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h3><b>Efeitos na efici\u00eancia da bomba hidr\u00e1ulica<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">As bombas hidr\u00e1ulicas bombeiam fluido para o sistema para que ele funcione. Quando o fluido se torna mais viscoso, a bomba precisa trabalhar mais para circul\u00e1-lo. Como resultado, a resist\u00eancia ao fluxo aumenta e a vaz\u00e3o diminui, o que reduz a efici\u00eancia. Isso causa maior desgaste nas bombas, o que pode levar ao superaquecimento, desgaste prematuro e falha do sistema.<\/span><\/p>\n<h2><b>Normas\/C\u00f3digos Internacionais para Opera\u00e7\u00e3o de \u00d3leo Hidr\u00e1ulico em Clima Frio<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Ignorar a manuten\u00e7\u00e3o de inverno pode significar mais do que apenas um desempenho lento. Pode levar a rachaduras.<\/span><a href=\"https:\/\/hydraflu.com\/pt\/mangueiras-e-conexoes-hidraulicas\/\"> <span style=\"font-weight: 400;\">mangueiras<\/span><\/a><span style=\"font-weight: 400;\">, veda\u00e7\u00f5es danificadas e falha hidr\u00e1ulica completa. Este \u00e9 um fator muito importante para o sistema. Muitas organiza\u00e7\u00f5es desenvolveram um conjunto de c\u00f3digos e normas para o \u00f3leo hidr\u00e1ulico a ser utilizado e definem determinados par\u00e2metros. A tabela a seguir ilustra alguns dos c\u00f3digos padr\u00e3o e seus detalhes:<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Padr\u00e3o<\/b><\/td>\n<td><b>Organiza\u00e7\u00e3o<\/b><\/td>\n<td><b>Par\u00e2metro<\/b><\/td>\n<td><b>Descri\u00e7\u00e3o<\/b><\/td>\n<td><b>Valor\/Intervalo<\/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 (Organiza\u00e7\u00e3o Internacional de Normaliza\u00e7\u00e3o)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Fluidez a baixas temperaturas (Ponto de fluidez)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Define classes de fluidos hidr\u00e1ulicos, incluindo o ponto de fluidez.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Normalmente, \u2264 -40\u00b0C para climas frios<\/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 Internacional<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ponto de vazamento<\/span><\/td>\n<td><span style=\"font-weight: 400;\">A temperatura mais baixa na qual o \u00f3leo ainda flui.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Varia dependendo da especifica\u00e7\u00e3o do \u00f3leo hidr\u00e1ulico, geralmente entre -20\u00b0C e -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;\">Viscosidade cinem\u00e1tica a baixas temperaturas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Mede as caracter\u00edsticas do fluxo em temperaturas espec\u00edficas.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Os valores variam, mas, por exemplo, 860 mm\u00b2\/s a -40\u00b0C para certos \u00f3leos.<\/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 Parte 3<\/span><\/a><\/td>\n<td><span style=\"font-weight: 400;\">Instituto Alem\u00e3o de Normaliza\u00e7\u00e3o<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Fluido hidr\u00e1ulico (Ponto de fluidez)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Requisitos para \u00f3leos hidr\u00e1ulicos de alto desempenho<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ponto de fluidez normalmente \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;\">Ex\u00e9rcito dos EUA<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Opera\u00e7\u00e3o em baixas temperaturas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Define a viscosidade e o ponto de fluidez para \u00f3leos hidr\u00e1ulicos de uso militar.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Ponto de fluidez \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 Internacional<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Graus de viscosidade (simula\u00e7\u00e3o de partida a frio)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Especifica o desempenho de arranque a baixas temperaturas.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Varia dependendo do grau de viscosidade: 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;\">Normas brit\u00e2nicas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Capacidade de bombeamento em baixas temperaturas<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Define a temperatura m\u00ednima de opera\u00e7\u00e3o para bombeamento.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Normalmente, \u2264 -30\u00b0C a -40\u00b0C<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><b>Como escolher o \u00f3leo hidr\u00e1ulico certo para condi\u00e7\u00f5es de inverno<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Uma das melhores maneiras de manter seus sistemas hidr\u00e1ulicos funcionando sem problemas no inverno \u00e9 usar o \u00f3leo correto. Como mencionado acima, diferentes normas s\u00e3o empregadas para o uso de diferentes composi\u00e7\u00f5es de \u00f3leos hidr\u00e1ulicos para diferentes varia\u00e7\u00f5es de temperatura.<\/span><\/p>\n<h3><b>Fluidos hidr\u00e1ulicos de inverno versus fluidos hidr\u00e1ulicos comuns<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Os fluidos hidr\u00e1ulicos de inverno s\u00e3o projetados especificamente para funcionar em climas mais frios. Eles cont\u00eam aditivos que ajudam a manter uma viscosidade mais baixa em condi\u00e7\u00f5es clim\u00e1ticas adversas. Esses \u00f3leos s\u00e3o formulados para fluir com mais facilidade nessas circunst\u00e2ncias, o que facilita o funcionamento da bomba e mant\u00e9m a efici\u00eancia de todo o sistema.<\/span><\/p>\n<h3><b>\u00cdndice de viscosidade do \u00f3leo hidr\u00e1ulico<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Quanto maior o \u00edndice de viscosidade (IV), melhor o \u00f3leo manter\u00e1 seu desempenho em uma ampla faixa de temperaturas. Portanto, sempre opte por \u00f3leos hidr\u00e1ulicos com IV mais alto.<\/span><\/p>\n<h2><b>Dicas para manter o \u00f3leo hidr\u00e1ulico funcionando em condi\u00e7\u00f5es de frio<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Ap\u00f3s aprender todos os detalhes, voc\u00ea agora pode conferir algumas dicas e orienta\u00e7\u00f5es b\u00e1sicas para manter o \u00f3leo hidr\u00e1ulico funcionando em condi\u00e7\u00f5es de inverno. Essas dicas ajudar\u00e3o voc\u00ea a manter tudo funcionando mesmo com o frio intenso.<\/span><\/p>\n<h3><b>1.<\/b><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 <\/span><b>Mantenha o \u00f3leo hidr\u00e1ulico na temperatura ideal.<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Manter o \u00f3leo hidr\u00e1ulico aquecido com mantas t\u00e9rmicas ou aquecedores el\u00e9tricos ajuda a manter uma temperatura constante durante os per\u00edodos de inatividade. Isso evita o espessamento do \u00f3leo e garante uma partida mais f\u00e1cil. Dessa forma, voc\u00ea pode prolongar a vida \u00fatil do equipamento.<\/span><\/p>\n<h3><b>2.<\/b><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 <\/span><b>Evite mudan\u00e7as bruscas de temperatura.<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Aque\u00e7a gradualmente os sistemas hidr\u00e1ulicos antes de utiliz\u00e1-los. Isso evitar\u00e1 choques t\u00e9rmicos nos componentes. Al\u00e9m disso, assegure-se sempre de realizar procedimentos consistentes de aquecimento antes do uso e evite mudan\u00e7as bruscas de temperatura para manter a efici\u00eancia do sistema.<\/span><\/p>\n<h3><b>3.<\/b><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 <\/span><b>Minimize a exposi\u00e7\u00e3o ao ar livre<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Temperaturas externas extremas reduzem a vida \u00fatil das m\u00e1quinas. Por isso, \u00e9 necess\u00e1rio limitar o tempo de exposi\u00e7\u00e3o ao ar livre para evitar danos. Guarde-as sempre em local fechado ap\u00f3s o uso.<\/span><\/p>\n<h3><b>4.<\/b><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 <\/span><b>Verifique regularmente a condi\u00e7\u00e3o do \u00f3leo.<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">A \u00e1gua tem um ponto de congelamento baixo e a umidade congela rapidamente. Por isso, \u00e9 importante testar regularmente o \u00f3leo hidr\u00e1ulico para verificar a presen\u00e7a de contamina\u00e7\u00e3o ou umidade. Al\u00e9m disso, inspecione os filtros de \u00f3leo e substitua-os quando necess\u00e1rio, pois um \u00f3leo limpo e livre de umidade garante maior efici\u00eancia.<\/span><\/p>\n<h3><b>5.<\/b><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 <\/span><b>Utilize sistemas de circula\u00e7\u00e3o de \u00f3leo<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Voc\u00ea pode usar sistemas de circula\u00e7\u00e3o de \u00f3leo para manter o \u00f3leo em movimento durante per\u00edodos de inatividade. Isso ajudar\u00e1 a evitar o espessamento do \u00f3leo e garantir\u00e1 um fluxo constante. Manter o \u00f3leo em movimento \u00e9 fundamental para manter a efici\u00eancia.<\/span><\/p>\n<h3><b>6.<\/b><span style=\"font-weight: 400;\">\u00a0 \u00a0 \u00a0 <\/span><b>Cubra as m\u00e1quinas quando estiverem ao ar livre.<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Se n\u00e3o for poss\u00edvel guardar as m\u00e1quinas em local fechado, cubra-as com lonas para proteg\u00ea-las do vento frio e da neve. Isso limitar\u00e1 o ac\u00famulo de umidade, garantindo um ambiente seco ao redor delas.<\/span><\/p>\n<h2><b>O papel dos aditivos de \u00f3leo hidr\u00e1ulico no desempenho no inverno.<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Os aditivos podem determinar o sucesso ou o fracasso do desempenho do seu sistema hidr\u00e1ulico no inverno. Existem aditivos espec\u00edficos desenvolvidos para melhorar as caracter\u00edsticas de fluxo em climas frios de \u00f3leos hidr\u00e1ulicos de uso geral. Esses aditivos s\u00e3o formulados especialmente com propriedades anticongelantes para evitar que o \u00f3leo engrosse demais. Eles s\u00e3o preparados para reduzir o aumento da viscosidade e garantir um fluxo suave.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Se voc\u00ea opera em \u00e1reas onde as temperaturas caem frequentemente abaixo de zero, adicionar um aditivo de desempenho para inverno \u00e9 a melhor op\u00e7\u00e3o. Esses aditivos ajudam a prevenir a forma\u00e7\u00e3o de gel e a manter a lubrifica\u00e7\u00e3o, o que, em \u00faltima an\u00e1lise, protege seu sistema contra danos.<\/span><\/p>\n<h2><b>Lista de verifica\u00e7\u00e3o para inspe\u00e7\u00e3o no inverno<\/b><\/h2>\n<ol>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">O clima frio pode causar rachaduras nas mangueiras e falhas nas veda\u00e7\u00f5es. Voc\u00ea pode inspecionar todas as pe\u00e7as de borracha em busca de danos.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Voc\u00ea precisa se certificar de que o n\u00edvel de \u00f3leo est\u00e1 adequado; caso contr\u00e1rio, complete at\u00e9 o n\u00edvel correto.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">\u00c9 muito importante aquecer o equipamento antes de iniciar a opera\u00e7\u00e3o.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Verifique se o \u00f3leo est\u00e1 turvo ou contaminado, para identificar problemas como umidade ou outros.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Temperaturas baixas reduzem a efici\u00eancia da bateria, portanto, certifique-se de que estejam totalmente carregadas.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Inspecione e, se necess\u00e1rio, substitua os filtros hidr\u00e1ulicos para evitar entupimentos. Os entupimentos pioram em climas frios.<\/span><\/li>\n<li><span style=\"font-weight: 400;\"> \u00a0 \u00a0 \u00a0 <\/span><span style=\"font-weight: 400;\">Verifique e confirme se os aquecedores ou mantas t\u00e9rmicas est\u00e3o funcionando para manter a temperatura do \u00f3leo.<\/span><\/li>\n<\/ol>\n<h2><b>Conclus\u00e3o \u2013 A import\u00e2ncia da manuten\u00e7\u00e3o regular em climas frios<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">O \u00f3leo hidr\u00e1ulico pode congelar, mas, mais importante, ele engrossa e se torna menos fluido muito antes de atingir o ponto de congelamento. A manuten\u00e7\u00e3o preventiva \u00e9 sempre mais barata do que a manuten\u00e7\u00e3o que leva \u00e0 paralisa\u00e7\u00e3o do equipamento. Ao usar fluidos hidr\u00e1ulicos de inverno, aquecer o equipamento antes da instala\u00e7\u00e3o e manter a manuten\u00e7\u00e3o em dia, voc\u00ea pode garantir o bom funcionamento dos seus sistemas hidr\u00e1ulicos. Para saber mais sobre \u00f3leos hidr\u00e1ulicos, acesse [link para o site\/site].<\/span><a href=\"https:\/\/hydraflu.com\/pt\/contate-nos\/\"> <span style=\"font-weight: 400;\">Contate-nos<\/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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