{"id":977,"date":"2019-12-12T10:42:14","date_gmt":"2019-12-12T10:42:14","guid":{"rendered":"https:\/\/www.taopparts.com\/blog\/?p=977"},"modified":"2020-10-14T09:24:18","modified_gmt":"2020-10-14T09:24:18","slug":"how-to-discover-problems-in-the-fluid-system-of-wheel-loaders-bulldozers-dumpers-and-excavators","status":"publish","type":"post","link":"https:\/\/www.taopparts.com\/blog\/en\/how-to-discover-problems-in-the-fluid-system-of-wheel-loaders-bulldozers-dumpers-and-excavators\/","title":{"rendered":"How to detect problems in the fluid system of wheel loaders, bulldozers, dumpers and excavators"},"content":{"rendered":"<p><strong>Efficiency is a key issue<\/strong> when we talk about the operation of excavators, loaders, dumpers, bulldozers, etc.<\/p>\n<p>The owners of heavy machines and their operator<strong> use fewer resources<\/strong> to complete certain jobs than others, certainly <strong>have a competitive advantage<\/strong> because they use the equipments more effectively.<\/p>\n<p>Scheduled and preventive maintenance, which we always recommend to be carried out regularly, is the best ally to avoid breakdowns and damage to the machine.<\/p>\n<p>In this article we will deal with a very important topic, namely <strong>how to detect any contamination in the fluids present in a heavy machine.<\/strong><\/p>\n<p><a href=\"https:\/\/www.taopparts.com\/en\/156-tank\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-301\" src=\"https:\/\/www.taopparts.com\/blog\/wp-content\/uploads\/2019\/07\/spare-parts-komatsu-volvo-jcb-.png\" alt=\"used spare parts komatsu volvo jcb\" width=\"640\" height=\"215\" srcset=\"https:\/\/www.taopparts.com\/blog\/wp-content\/uploads\/2019\/07\/spare-parts-komatsu-volvo-jcb-.png 640w, https:\/\/www.taopparts.com\/blog\/wp-content\/uploads\/2019\/07\/spare-parts-komatsu-volvo-jcb--300x101.png 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<p><!--more--><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_66_1 counter-flat ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Tabla de contenidos<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.taopparts.com\/blog\/en\/how-to-discover-problems-in-the-fluid-system-of-wheel-loaders-bulldozers-dumpers-and-excavators\/#What_are_the_fluids_found_in_an_excavator_wheel_loader_bulldozer_etc\" title=\"What are the fluids found in an excavator, wheel loader, bulldozer, etc?\">What are the fluids found in an excavator, wheel loader, bulldozer, etc?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.taopparts.com\/blog\/en\/how-to-discover-problems-in-the-fluid-system-of-wheel-loaders-bulldozers-dumpers-and-excavators\/#What_are_the_sources_of_contamination\" title=\"What are the sources of contamination?\">What are the sources of contamination?<\/a><\/li><li class='ez-toc-page-1'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.taopparts.com\/blog\/en\/how-to-discover-problems-in-the-fluid-system-of-wheel-loaders-bulldozers-dumpers-and-excavators\/#Benefits_of_contamination_control\" title=\"Benefits of contamination control\">Benefits of contamination control<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_are_the_fluids_found_in_an_excavator_wheel_loader_bulldozer_etc\"><\/span>What are the fluids found in an excavator, wheel loader, bulldozer, etc?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The machines require a series of fluids for its operation. Let&#8217;s see their type:<\/p>\n<ul>\n<li><em><strong>Hydraulic fluid<\/strong><\/em><\/li>\n<\/ul>\n<p>The hydraulic oil has the main function of transporting the energy into the hydraulic system, and protects, lubricates and cools the components with which it is in contact to. So, it is very important to use a hydraulic oil with a determined thermal stability and verify that it is not foamed, because this would cause an irregularity in the flow.<\/p>\n<p><strong>The contaminants of a hydraulic fluid<\/strong> are divided into:<\/p>\n<p>&#8211;<em> Construction contaminants<\/em>: present in the components, <a href=\"https:\/\/www.taopparts.com\/en\/440-boom-cylinder\">cylinders<\/a>, filters, fluids, <a href=\"https:\/\/www.taopparts.com\/en\/286-engine\">engines<\/a> and <a href=\"https:\/\/www.taopparts.com\/en\/160-pump\">hydraulic pumps<\/a>, <a href=\"https:\/\/www.taopparts.com\/en\/37-pipe\">pipes<\/a>, <a href=\"https:\/\/www.taopparts.com\/en\/156-tank\">tanks<\/a>, <a href=\"https:\/\/www.taopparts.com\/en\/159-val\">valves<\/a> etc.;<\/p>\n<p>&#8211; <em>Contaminants generated by the system<\/em>: present in the components equipped with relative movements, as pumps, motors, cylinders, bearings, etc.;<\/p>\n<p>&#8211; <em>Contaminants introduced during maintenance<\/em>: during disassembly and reassembly, when filling or replenishing the hydraulic fluid;<\/p>\n<p>&#8211; <em>Contaminants introduced during operation<\/em>: due to leaks towards the external environment, through imperfect bleed valves, through the cylinder rods and tank openings.<\/p>\n<ul>\n<li><strong><em>Gear fluid<\/em><\/strong><\/li>\n<\/ul>\n<p>The fluid for the gears allows to lubricate the moving parts reducing their wearing. For this reason, <strong>it is important that the transmission oils strictly complies with the manufacturer&#8217;s instructions<\/strong>.<\/p>\n<p>The main risk, when talking about gears, is the so-called \u00ab<em>pitting<\/em>\u00ab, that is the superficial fatigue due to the contact pressure between the gear teeth. A phenomenon that, if not mitigated by the action of the lubricant, can smooth the teeth to make the gear at first noisy and consequently malfunctioning. One is led to think that a more viscous oil is always preferable, and part of it is true. However, <strong>a precise balance between viscosity and fluidity must be respected, because otherwise the oil tends not to remain in the gear subjected to high rotation speeds and it would thus find itself working with poor lubrication.<\/strong> The contaminants present in the<a href=\"https:\/\/www.taopparts.com\/en\/122-gears\"> gear<\/a> oil are represented by the particles that erode the surface of the gear.<\/p>\n<ul>\n<li><em><strong>Engine fluid<\/strong><\/em><\/li>\n<\/ul>\n<p>The engine oil is needed for lubricating the mechanical parts, <strong>protecting them from wearing due to friction, protecting the metal surfaces from corrosion, helping to cool the engine and creating as few residues as possible<\/strong>. The oil film is therefore the \u00abshield\u00bb that protects the parts and components from harmful frictions.<\/p>\n<p>The engine oil, in addition to the very important functions described above, <strong>also carries liquid pollutants<\/strong> (such as water or fuel) <strong>or solids<\/strong> (for example metal particles produced by engine wear)<strong> to the filters<\/strong>.<\/p>\n<p>This allows the engine to operate in ideal conditions because the various contaminants &#8211; which for the engine are somewhat the equivalent of viruses for the human body &#8211; are removed from the oil, which transports them inside the filters which capture these \u00abViruses\u00bb and permanently remove them from circulation.<\/p>\n<p>If this were not done, the engine would \u00abget sick\u00bb in a very short time and the consequences could be disastrous &#8211; even in an extremely short time frame.<\/p>\n<p><strong>Motor oil contaminants include dust, paint, duster fibres, mechanical particles, grease, air and more.<\/strong><\/p>\n<ul>\n<li><em><strong>Coolant or cooling fluid<\/strong><\/em><\/li>\n<\/ul>\n<p>Cooling fluid intervenes whenever a thermostatic valve of the engine indicates overheating. Then, opens a circuit, in which this liquid is contained, whose circulation immediately cools the components. The same applies if the outside temperature drops to -40 degrees: the liquid acts as an antifreeze, releasing its fluidifying effect.<\/p>\n<p><strong>The contaminants of the refrigerant fluid<\/strong> consist mainly of particles, water, oil aging products and acids. Water and particles (for example iron, copper and aluminium) in fact accelerate the aging of the oil and the consumption of additives. There is a high consumption of the components with the relative increase in leaks both for machine downtime and for repairs.<\/p>\n<ul>\n<li><em><strong>Fuel fluid<\/strong><\/em><\/li>\n<\/ul>\n<p>Fuel is what the machine needs to function.<\/p>\n<p><strong>The contaminants present<\/strong> in the diesel fuel can be of 3 types:<\/p>\n<ol>\n<li>Hard particles (dust, metal, rust, etc.): they cause most of the power supply system failures, damaging the surfaces of pumps and injectors, altering the fuel supply tolerances in the combustion chambers;<\/li>\n<li>Soft \/ resinous particles (waxes, asphaltenes, gels, etc.): they cause filter clogging and fuel oxidation;<\/li>\n<li>Liquids (water, cooling liquids, oils, etc.): they cause problems of lubricity and diesel oxidation.<\/li>\n<\/ol>\n<p><a href=\"https:\/\/www.taopparts.com\/en\/14-rim\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-298\" src=\"https:\/\/www.taopparts.com\/blog\/wp-content\/uploads\/2019\/07\/tyres-and-rims.png\" alt=\"used tyres and rims\" width=\"640\" height=\"215\" srcset=\"https:\/\/www.taopparts.com\/blog\/wp-content\/uploads\/2019\/07\/tyres-and-rims.png 640w, https:\/\/www.taopparts.com\/blog\/wp-content\/uploads\/2019\/07\/tyres-and-rims-300x101.png 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_are_the_sources_of_contamination\"><\/span>What are the sources of contamination?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>There are countless sources of contamination that threaten fluids in a heavy machines let&#8217;s see them:<\/p>\n<p><em><strong>Workshop cleaning<\/strong><\/em><\/p>\n<p>Contaminants can safely infest fluids if the workshop is not clean.<strong> We therefore recommend keeping the instruments and the areas where the machines are checked clean.<\/strong><\/p>\n<p><em><strong>New oil<\/strong><\/em><\/p>\n<p>It will seem strange, but even a perfectly sealed oil can be a carrier of contaminants. So what <strong>we recommend is to filter it.<\/strong><\/p>\n<p><em><strong>Operation of the machine<\/strong><\/em><\/p>\n<p>The normal operation of the machine produces contaminants in the system fluids because only the friction between the components produces metal contaminants.<\/p>\n<p><em><strong>Empty deposit<\/strong><\/em><\/p>\n<p>An empty deposit accumulates moisture due to condensation.<strong> We recommend always keeping the deposit full, if possible.<\/strong><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Benefits_of_contamination_control\"><\/span>Benefits of contamination control<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Monitor the contamination of a heart moving machine&#8217;s fluids make it possible to:<\/p>\n<p><em>&#8211; Improve performance and extend the useful life of machine components;<\/em><\/p>\n<p><em>&#8211; Reduce maintenance and\/ or repair costs;<\/em><\/p>\n<p><em>&#8211; Greater value of the fleet of vehicles;<\/em><\/p>\n<p><em>&#8211; Greater safety for the operator, the machines and the surrounding environment.<\/em><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Taop Parts recommends carrying out the following operations to control contamination:<\/strong><\/p>\n<p>&#8211;<strong> Periodically check that the gear oil does not contain particles<\/strong> that erode the gear surface.<\/p>\n<p>&#8211; <strong>Check the temperature to carry out the work<\/strong>: at higher temperatures, the oxidation increases more rapidly and the oil will have a short life, also use the suitable oil for the temperature necessary to carry out the work;<\/p>\n<p>&#8211; <strong>Check the oil level<\/strong> to see if you need to add oil or remove the obstruction.<\/p>\n<p>&#8211; <strong>Take and analyze oil samples<\/strong> to compare its indicators with those defined by the manufacturer.<\/p>\n<p>Finally, <strong>we recommend that you always <a href=\"https:\/\/www.taopparts.com\/en\/8-parts\/\">use original and tested spare parts, such as those we have available in our warehouse<\/a>.<\/strong><\/p>\n<p><em>Contact our commercial experts who will be happy to find the best solutions for your needs<\/em>.<\/p>\n<p>Links of interest:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.taopparts.com\/en\/158-breather\">Hydraulic system: breather for\u00a0 wheel loader<\/a><\/li>\n<li><a href=\"https:\/\/www.taopparts.com\/en\/122-gears\">Transmission: gear for crawler excavators<\/a><\/li>\n<li><a href=\"https:\/\/www.taopparts.com\/en\/54-aftercooler\">Cooling: aftercooler for Articulated Dumper<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Efficiency is a key issue when we talk about the operation of excavators, loaders, dumpers, bulldozers, etc. The owners of heavy machines and their operator use fewer resources to complete certain jobs than others, certainly have a competitive advantage because they use the equipments more effectively. Scheduled and preventive maintenance, which we always recommend to &hellip; <a href=\"https:\/\/www.taopparts.com\/blog\/en\/how-to-discover-problems-in-the-fluid-system-of-wheel-loaders-bulldozers-dumpers-and-excavators\/\" class=\"more-link\">Sigue leyendo <span class=\"screen-reader-text\">How to detect problems in the fluid system of wheel loaders, bulldozers, dumpers and excavators<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":1023,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[983,981,1529,969,985,959,965,975],"tags":[1541,999,1539,1543,1537,1531,1535,1533],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to detect problems in the fluid system of wheel loaders, bulldozers, dumpers and excavators &#8226; TAOPPARTS BLOG<\/title>\n<meta name=\"description\" content=\"How to detect problems 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