{"id":2622,"date":"2024-03-07T09:13:18","date_gmt":"2024-03-07T08:13:18","guid":{"rendered":"https:\/\/www.bf-hydraulik.com\/encyclopedia\/hydraulic-repair\/"},"modified":"2026-04-15T10:52:52","modified_gmt":"2026-04-15T08:52:52","slug":"hydraulic-repair","status":"publish","type":"encyclopedia","link":"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-repair\/","title":{"rendered":"Hydraulic Repair"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2622\" class=\"elementor elementor-2622 elementor-580\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-735b55f8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"735b55f8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-2820cb8b\" data-id=\"2820cb8b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9fb9997 elementor-widget elementor-widget-text-editor\" data-id=\"9fb9997\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h1>Hydraulic repair for wear, defects, pitting, or abrasion<\/h1><p><a href=\"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-system\/\" target=\"_self\" title=\"Hydraulic system: design &amp; applications explained simplyA hydraulic system is used to apply large forces in a targeted manner over a defined distance with minimal effort. The underlying hydraulic principle&hellip;\" class=\"encyclopedia\">Hydraulic system<\/a>s are subject to the same wear and tear as any other technical equipment. Unlike open chain drives, levers, or spindles, gradual damage in hydraulics often occurs out of sight. Therefore, operating a system always includes regular maintenance and inspection, which ideally makes <a href=\"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-repair\/\" target=\"_self\" title=\"Hydraulic repair for wear, defects, pitting, or abrasionHydraulic systems are subject to the same wear and tear as any other technical equipment. Unlike open chain drives, levers, or spindles, gradual&hellip;\" class=\"encyclopedia\">hydraulic repair<\/a>s unnecessary.  <\/p><h2>Disturbances in hydraulic systems<\/h2><p><a href=\"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-system\/\" target=\"_self\" title=\"Hydraulic system: design &amp; applications explained simplyA hydraulic system is used to apply large forces in a targeted manner over a defined distance with minimal effort. The underlying hydraulic principle&hellip;\" class=\"encyclopedia\">Hydraulic system<\/a>s are characterized by high internal pressures, which quickly reach hundreds of bar. These high loads and certain characteristics of the energy carrier give rise to very specific problems for hydraulics. These disturbances are typical for such systems:   <\/p><ul><li>Wear on seals<\/li><li>Defects in joints and bearings<\/li><li>Pitting on internal surfaces<\/li><li>Abrasion caused by contaminated hydraulic oil<\/li><\/ul><h3>Repair of hydraulic seals<\/h3><p>Seals in valves, pumps, and motors are the most heavily stressed components in a <a href=\"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-system\/\" target=\"_self\" title=\"Hydraulic system: design &amp; applications explained simplyA hydraulic system is used to apply large forces in a targeted manner over a defined distance with minimal effort. The underlying hydraulic principle&hellip;\" class=\"encyclopedia\">hydraulic system<\/a>. They must not only withstand high pressures but also be resistant to friction and have a high tolerance for fluctuating temperatures. Any sealing material can only guarantee this for a certain period of time.  <\/p><p>Seals are therefore among the components that are particularly easy to replace in <a href=\"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-system\/\" target=\"_self\" title=\"Hydraulic system: design &amp; applications explained simplyA hydraulic system is used to apply large forces in a targeted manner over a defined distance with minimal effort. The underlying hydraulic principle&hellip;\" class=\"encyclopedia\">hydraulic system<\/a>s. In most cases, it is sufficient to simply loosen a few screws to replace the damaged seal with a new part. <\/p><h3>Repair of joints and bearings in hydraulic cylinders<\/h3><p>Joints and bearings absorb the supporting forces of actuators, especially <a href=\"https:\/\/www.bf-hydraulik.com\/hydraulikzylinder-reparieren.html\">hydraulic cylinders<\/a>. Since these exert high forces, the load on the bearings is always enormous. A lack of lubrication further increases wear at these points. Replacing the bearings is also very simple in most cases. In addition to the bearing, the pin is usually replaced as well. This restores the joint to a like-new condition, ensuring it will not fail in the foreseeable future.     <\/p><h3>Pitting on internal surfaces caused by cavitation<\/h3><p>Internal pitting is one of the most insidious phenomena in hydraulics. It is caused by the phenomenon of &ldquo;<a href=\"https:\/\/www.bf-hydraulik.com\/en\/cavitation\/\" target=\"_self\" title=\"Cavitation in Hydraulic Systems: Internal DestructionAfter oil contamination, cavitation is one of the most common causes of damage in hydraulic systems. It occurs when hydraulic components are not optimally matched&hellip;\" class=\"encyclopedia\">cavitation<\/a>.&rdquo; <a href=\"https:\/\/www.bf-hydraulik.com\/en\/cavitation\/\" target=\"_self\" title=\"Cavitation in Hydraulic Systems: Internal DestructionAfter oil contamination, cavitation is one of the most common causes of damage in hydraulic systems. It occurs when hydraulic components are not optimally matched&hellip;\" class=\"encyclopedia\">Cavitation<\/a> is a vacuum bubble that can form at high flow velocities. These bubbles often occur at sharp-edged transitions, pumps, and certain valves. The vacuum bubble collapses, releasing high kinetic energy. This energy strikes the nearest surface and tears out material. Such damage can only be identified through intensive inspection. The only remedy is to replace the affected components.       <\/p><h3>Contaminated hydraulic oil<\/h3><p>Over time, unfiltered hydraulic oil accumulates more and more suspended particles. These can cause damage to all components that come into contact with the liquid medium. Maintenance tasks therefore always include the regular replacement of filters and hydraulic oil.  <\/p><p><strong>Tip:<\/strong> Once the hydraulic oil has been drained, it is the perfect time to examine the <a href=\"https:\/\/www.bf-hydraulik.com\/en\/hydraulic-system\/\" target=\"_self\" title=\"Hydraulic system: design &amp; applications explained simplyA hydraulic system is used to apply large forces in a targeted manner over a defined distance with minimal effort. The underlying hydraulic principle&hellip;\" class=\"encyclopedia\">hydraulic system<\/a> for further internal damage using endoscopy. 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