{"id":64,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/brush-defects\/"},"modified":"2026-05-23T22:56:07","modified_gmt":"2026-05-23T22:56:07","slug":"brush-defects","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/fi\/glossary\/brush-defects\/","title":{"rendered":"Mit\u00e4 ovat harjaviat? Tasavirtamoottorin ja liukurengasongelmien ongelmat"},"content":{"rendered":"<h1>Harjavirheiden ymm\u00e4rt\u00e4minen<\/h1>\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/balanset-1\/\" title=\"Kannettava tasapainotin ja t\u00e4rin\u00e4analysaattori Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kannettava tasapainotin ja v\u00e4r\u00e4htelyanalysaattori, t\u00e4ydellinen sarja\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/fi\/product\/balanset-1\/\" title=\"Kannettava tasapainotin ja t\u00e4rin\u00e4analysaattori Balanset-1A\">Kannettava tasapainotin &#038; t\u00e4rin\u00e4analysaattori Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>1,975.00<\/span> + ALV (jos sovellettavissa)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Lis\u00e4\u00e4 ostoskoriin: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/vibration-sensor\/\" title=\"T\u00e4rin\u00e4anturi\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A:n t\u00e4rin\u00e4anturin l\u00e4hikuva\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/fi\/product\/vibration-sensor\/\" title=\"T\u00e4rin\u00e4anturi\">T\u00e4rin\u00e4anturi<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>90.00<\/span> + ALV (jos sovellettavissa)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Lis\u00e4\u00e4 ostoskoriin: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optinen anturi (lasertakometri)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Optinen anturi (lasertakometri)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/fi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optinen anturi (lasertakometri)\">Optinen anturi (lasertakometri)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>124.00<\/span> + ALV (jos sovellettavissa)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Lis\u00e4\u00e4 ostoskoriin: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Vibromera-roottorin tasapainotussarja: kantolaukku, monikanavainen signaalimuunnin, k\u00e4dess\u00e4 pidett\u00e4v\u00e4 analysaattori, magneettijalusta, t\u00e4rin\u00e4anturit ja kierretyt kaapelit.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/fi\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>6,803.00<\/span> + ALV (jos sovellettavissa)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Lis\u00e4\u00e4 ostoskoriin: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/magnet-stand\/\" title=\"Magneettinen jalusta Insize-60-kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Magneettipohja.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/fi\/product\/magnet-stand\/\" title=\"Magneettinen jalusta Insize-60-kgf\">Magneettinen jalusta Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>46.00<\/span> + ALV (jos sovellettavissa)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Lis\u00e4\u00e4 ostoskoriin: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/reflective-tape\/\" title=\"Heijastava nauha\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Heijastava nauha\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/fi\/product\/reflective-tape\/\" title=\"Heijastava nauha\">Heijastava nauha<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>10.00<\/span> + ALV (jos sovellettavissa)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Lis\u00e4\u00e4 ostoskoriin: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/fi\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynaaminen tasapainotin &quot;Balanset-1A&quot; OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A-pakkauksen sis\u00e4lt\u00f6, jossa on liit\u00e4nt\u00e4yksikk\u00f6, anturit, kierroslukumittari ja lis\u00e4varusteet\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/fi\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynaaminen tasapainotin &quot;Balanset-1A&quot; OEM\">Dynaaminen tasapainotin \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>1,735.00<\/span> + ALV (jos sovellettavissa)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/fi\/wp-json\/wp\/v2\/glossary\/64?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Lis\u00e4\u00e4 ostoskoriin: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>Harjan viat<\/strong> ongelmia hiili- tai metalli-grafiittiharjoissa, jotka johtavat s\u00e4hk\u00f6virtaa tasavirtamoottoreiden, k\u00e4\u00e4mitysohjaisten vaihtovirtamoottoreiden, generaattoreiden ja liukurenkaiden kiinteiden ja py\u00f6rivien osien v\u00e4lill\u00e4. Yleisi\u00e4 vikoja ovat harjojen kuluminen, virheellinen istuvuus, t\u00e4rin\u00e4 (pomppiminen), kipin\u00f6inti, likaantuminen ja jousij\u00e4nnitykseen liittyv\u00e4t ongelmat. Jokainen n\u00e4ist\u00e4 aiheuttaa ongelmia useammalla kuin yhdell\u00e4 rintamalla: s\u00e4hk\u00f6isesti (heikko virransiirto ja kipin\u00f6inti), mekaanisesti (<a href=\"https:\/\/vibromera.eu\/fi\/glossary\/vibration\/\">t\u00e4rin\u00e4<\/a> (pomppimisesta) ja \u2013 jos tilannetta ei korjata \u2013 toissijaisia vaurioita kommutaattoriin tai liukurenkaisiin.<\/p>\n<p>Harjatyyppiset koneet ovat v\u00e4hitellen v\u00e4istym\u00e4ss\u00e4 vaihtovirta-induktiomoottoreiden tielt\u00e4, mutta ne eiv\u00e4t suinkaan ole viel\u00e4 kadonneet kokonaan. Tasavirtak\u00e4ytt\u00f6iset laitteet, k\u00e4\u00e4mityt roottorimoottorit, generaattorit ja monenlaiset erikoislaitteet toimivat edelleen harjojen avulla, joten harjojen vikojen tunnistaminen on edelleen keskeinen osa <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/motor-defects\/\">s\u00e4hk\u00f6moottorin vianm\u00e4\u00e4ritys<\/a> ja mink\u00e4 tahansa <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/electrical-faults\/\">s\u00e4hk\u00f6vika<\/a> py\u00f6rivien koneiden tarkastus.<\/p>\n<h2>1. Harjojen yleiset viat<\/h2>\n<h3>Harjan kuluminen<\/h3>\n<p>Jossain m\u00e4\u00e4rin kuluminen on normaalia, mutta se voi kiihty\u00e4 huomattavasti:<\/p>\n<ul>\n<li><strong>Normaali kuluminen:<\/strong> kitkan aiheuttama asteittainen materiaalin kuluminen \u2014 suuruusluokkaa 1\u20132 mm 1 000 tunnin v\u00e4lein.<\/li>\n<li><strong>Nopeutunut kuluminen:<\/strong> johtuen suuresta virrasta, huonosta voitelusta (suojaavan hiilikalvon puuttuminen) tai likaantumisesta.<\/li>\n<li><strong>Oireet:<\/strong> harjat ovat lyhentyneet selv\u00e4sti ja l\u00e4hestyv\u00e4t minimipituuttaan.<\/li>\n<li><strong>Seuraukset:<\/strong> harjan lyhentyess\u00e4 jousen paine heikkenee, mik\u00e4 aiheuttaa huonon kosketuksen ja lis\u00e4\u00e4 kipin\u00f6inti\u00e4.<\/li>\n<li><strong>Toiminto:<\/strong> Vaihda, kun se on kulunut v\u00e4himm\u00e4ispituuteen, joka on yleens\u00e4 kolmasosa tai puolet alkuper\u00e4isest\u00e4 pituudesta.<\/li>\n<\/ul>\n<h3>Harjan t\u00e4rin\u00e4 (pomppiminen)<\/h3>\n<p>T\u00e4ss\u00e4 harja menett\u00e4\u00e4 ajoittain kosketuksen kommutaattoriin:<\/p>\n<ul>\n<li><strong>Syyt:<\/strong> riitt\u00e4m\u00e4t\u00f6n jousipaine, karhea kommutaattori, ulkoinen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/vibration\/\">t\u00e4rin\u00e4<\/a>tai ep\u00e4keskokommutaattori.<\/li>\n<li><strong>Oireet:<\/strong> N\u00e4kyv\u00e4\u00e4 kipin\u00f6inti\u00e4, kuuluvaa surinaa tai kolinaa, s\u00e4hk\u00f6ist\u00e4 kohinaa<\/li>\n<li><strong>T\u00e4rin\u00e4:<\/strong> pomppiminen aiheuttaa iskuja kommutaattorilamellien ohitustaajuudella.<\/li>\n<li><strong>Vahingot:<\/strong> nopeuttaa kommutaattorin kulumista ja aiheuttaa valokaarivaurioita.<\/li>\n<li><strong>Taajuus:<\/strong> V\u00e4rin\u00e4 esiintyy tyypillisesti taajuusalueella 100\u20131000 Hz.<\/li>\n<\/ul>\n<h3>Harjan huono istuvuus<\/h3>\n<ul>\n<li><strong>Kuvaus:<\/strong> harjan pinta ei noudata kommutaattorin kaarevuutta.<\/li>\n<li><strong>Syyt:<\/strong> uudet, viel\u00e4 k\u00e4ytt\u00f6\u00f6nottamattomat harjat, virheellinen asennus tai liian kova harjaluokka.<\/li>\n<li><strong>Vaikutus:<\/strong> pienempi kosketuspinta-ala, suuri paikallinen virrantiheys ja paikallinen l\u00e4mm\u00f6n keskittyminen.<\/li>\n<li><strong>Oireet:<\/strong> liiallinen kipin\u00f6inti, kuumat kohdat ja nopea kuluminen.<\/li>\n<li><strong>Ratkaisu:<\/strong> asianmukainen sis\u00e4\u00e4najomenettely, oikean harjaluokan valinta ja istuvuuskivet.<\/li>\n<\/ul>\n<h3>Kontaminaatio<\/h3>\n<ul>\n<li><strong>\u00d6ljy ja rasva:<\/strong> v\u00e4hent\u00e4\u00e4 kitkaa, est\u00e4\u00e4 hiilikalvon muodostumista ja aiheuttaa s\u00e4hk\u00f6ist\u00e4 pintapurkauksia.<\/li>\n<li><strong>P\u00f6ly:<\/strong> hankaavat hiukkaset, jotka kiihdytt\u00e4v\u00e4t <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/wear\/\">kuluminen<\/a>.<\/li>\n<li><strong>Kosteus:<\/strong> edist\u00e4\u00e4 korroosiota ja heikent\u00e4\u00e4 s\u00e4hk\u00f6ist\u00e4 kosketusta.<\/li>\n<li><strong>Hiilip\u00f6lyn kertyminen:<\/strong> Voi oikosulkea segmenttien v\u00e4lill\u00e4 tai luoda seurantareittej\u00e4<\/li>\n<\/ul>\n<h3>Harjan jousiongelmat<\/h3>\n<ul>\n<li><strong>Heikot jouset:<\/strong> riitt\u00e4m\u00e4t\u00f6n paine, huono kosketus ja pomppiminen.<\/li>\n<li><strong>Rikkin\u00e4iset jouset:<\/strong> paine on kokonaan poissa, joten harja lakkaa koskettamasta.<\/li>\n<li><strong>V\u00e4\u00e4r\u00e4 paine:<\/strong> liian korkea aiheuttaa liiallista kulumista, liian matala aiheuttaa huonon kosketuksen.<\/li>\n<li><strong>Korroosio:<\/strong> ruostuneet jouset menett\u00e4v\u00e4t joustavuutensa.<\/li>\n<\/ul>\n<h3>Kipin\u00f6inti ja valokaaren muodostuminen<\/h3>\n<ul>\n<li>N\u00e4kyvi\u00e4 kipin\u00f6it\u00e4 harjan ja kommutaattorin v\u00e4liss\u00e4.<\/li>\n<li>Syit\u00e4 ovat esimerkiksi t\u00e4rin\u00e4, huono kosketus, ylikuormitus ja kommutaattorin vaurioituminen.<\/li>\n<li>Vaurio etenee ja aiheuttaa sy\u00f6pymi\u00e4 kommutaattorin pinnalle.<\/li>\n<li>Pahimmassa tapauksessa se johtaa l\u00e4pily\u00f6ntiin \u2013 valokaaren muodostumiseen useiden segmenttien v\u00e4lille.<\/li>\n<\/ul>\n<h2>2. T\u00e4rin\u00e4n tunnusmerkit<\/h2>\n<h3>Harjaan liittyv\u00e4 t\u00e4rin\u00e4<\/h3>\n<ul>\n<li><strong>Harjan pomppiminen:<\/strong> harjan pomppuessa syntyv\u00e4 korkeataajuinen t\u00e4rin\u00e4 taajuusalueella 100\u20131000 Hz.<\/li>\n<li><strong>Kommutaattorilamellin ohitustaajuus:<\/strong> kommutaattorilamellien lukum\u00e4\u00e4r\u00e4 \u00d7 kierrosluku \/ 60.<\/li>\n<li><strong>S\u00e4hk\u00f6iset yliaallot:<\/strong> perhe <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/harmonics\/\">yliaallot<\/a> valokaaresta ja virran toistuvista katkoista.<\/li>\n<li><strong>Laajakaistakohina:<\/strong> kipin\u00f6innin tuottama satunnainen korkeataajuinen signaali.<\/li>\n<li><strong>Amplitudimodulaatio:<\/strong> tulee esiin, jos ep\u00e4keskisyys aiheuttaa kosketuspaineen vaihtelun kerran kierrosta kohti.<\/li>\n<\/ul>\n<h3>Toissijaiset mekaaniset vaikutukset<\/h3>\n<ul>\n<li>Harjan kitka aiheuttaa tangentiaalisia voimia kommutaattoriin.<\/li>\n<li>Harjan ep\u00e4tasainen kuluminen voi aiheuttaa <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/unbalance\/\">ep\u00e4tasapaino<\/a>-kaltaisia oireita.<\/li>\n<li>Ep\u00e4symmetrinen jousipaine voi h\u00e4irit\u00e4 roottorin keskin\u00e4ist\u00e4 kohdistusta.<\/li>\n<\/ul>\n<p>Koska useat n\u00e4ist\u00e4 ilmi\u00f6ist\u00e4 osuvat taajuusalueeltaan yhteen todellisten mekaanisten vikojen kanssa, hiiliongelmat ovat tyypillinen diagnostinen harhautumisen l\u00e4hde \u2013 muistutuksena siit\u00e4, ett\u00e4 kommutaattorin lamellil\u00e4p\u00e4isytaajuus on aina vahvistettava ennen kuin laakereita syytell\u00e4\u00e4n.<\/p>\n<h2>3. Tunnistusmenetelm\u00e4t<\/h2>\n<h3>Visuaalinen tarkastus<\/h3>\n<ul>\n<li><strong>Harjan pituus:<\/strong> mittaa j\u00e4ljell\u00e4 oleva pituus ja vaihda se, jos se on alle v\u00e4himm\u00e4ispituuden.<\/li>\n<li><strong>Kosketuspinta:<\/strong> sen tulisi olla sile\u00e4 ja mukautua kommutaattoriin.<\/li>\n<li><strong>Kipin\u00f6inti:<\/strong> Tarkista laite pime\u00e4ss\u00e4 tilassa \u2013 liev\u00e4 kipin\u00f6inti on normaalia, voimakas kipin\u00f6inti on ongelma.<\/li>\n<li><strong>Saastuminen:<\/strong> tarkista, onko siin\u00e4 \u00f6ljy\u00e4, p\u00f6ly\u00e4 tai nokikertymi\u00e4.<\/li>\n<li><strong>Jousen kunto:<\/strong> tarkista, ett\u00e4 jouset ovat ehj\u00e4t ja tuottavat oikean kireyden.<\/li>\n<\/ul>\n<h3>S\u00e4hk\u00f6testit<\/h3>\n<ul>\n<li><strong>Harjan kosketusvastus:<\/strong> sen tulisi olla alhainen ja yhdenmukainen kaikissa harjoissa.<\/li>\n<li><strong>Jousen paine:<\/strong> mittaa jousivaa&#x27;alla \u2014 tyypillisesti 1,5\u20133,5 psi:n kosketuspaineella.<\/li>\n<li><strong>J\u00e4nniteh\u00e4vi\u00f6:<\/strong> harjan ja kommutaattorin v\u00e4lisess\u00e4 rajapinnassa, yleens\u00e4 alle 1 V harjaa kohti.<\/li>\n<\/ul>\n<h3>T\u00e4rin\u00e4- ja akustiikkamenetelm\u00e4t<\/h3>\n<ul>\n<li>Korkeataajuus <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/accelerometer\/\">kiihtyvyysanturi<\/a> mittaukset, joilla selvitet\u00e4\u00e4n v\u00e4rin\u00e4n vaikutukset.<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/acoustic-emission\/\">Akustinen emissio<\/a> valokaaren havaitsemiseen.<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/ultrasound-analysis\/\">Ultra\u00e4\u00e4nivalvonta<\/a> koronapurkautumisen tai kipin\u00f6innin varalta.<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/spectrum\/\">Spektrianalyysi<\/a> kommutaattorin lamellil\u00e4p\u00e4isytaajuuden erist\u00e4miseksi.<\/li>\n<\/ul>\n<h3>L\u00e4mp\u00f6kuvaus<\/h3>\n<ul>\n<li>Kuumat harjat viittaavat huonoon kosketukseen tai ylikuormitukseen.<\/li>\n<li>Kommutaattorin kuumat kohdat viittaavat paikallisiin ongelmiin.<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/thermography\/\">Termografia<\/a> voi paljastaa l\u00e4mp\u00f6tilaeroja eri harjasarjojen v\u00e4lill\u00e4.<\/li>\n<\/ul>\n<h2>4. Harjan t\u00e4rin\u00e4n mittaaminen kentt\u00e4olosuhteissa<\/h2>\n<p>Jos ep\u00e4ill\u00e4\u00e4n, ett\u00e4 harjatyyppisess\u00e4 koneessa esiintyy t\u00e4rin\u00e4\u00e4 tai kipin\u00f6inti\u00e4, k\u00e4yt\u00e4nn\u00f6n testin\u00e4 suoritetaan korkeataajuinen t\u00e4rin\u00e4mittaus harja- ja vaihdekotelossa. Kannettava kaksikanavainen analysaattori, kuten <a href=\"https:\/\/vibromera.eu\/fi\/tuote\/balanset-1\/\">Balanset-1A<\/a> sen avulla voit tallentaa spektrin ja varmistaa, vastaako energia kommutaattorin palkkisuodattimen taajuutta vai laajakaistaista kipin\u00f6intikuviota. Yhdess\u00e4 pime\u00e4ss\u00e4 tilassa suoritettavan silm\u00e4m\u00e4\u00e4r\u00e4isen tarkastuksen ja j\u00e4nniteh\u00e4vi\u00f6testin kanssa se auttaa erottamaan todellisen hiilivian muista, asiaan liittym\u00e4tt\u00f6mist\u00e4 laakeri- tai tasapaino-ongelmista \u2013 ja varmistaa uusien hiilien asennuksen j\u00e4lkeen, ett\u00e4 korkeataajuinen komponentti on palautunut l\u00e4ht\u00f6tasolle. N\u00e4iden lukemien seuranta <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/condition-monitoring\/\">kunnonvalvonta<\/a> ohjelma muuttaa reaktiivisen vaihdon suunnitelluksi vaihdoksi.<\/p>\n<h2>5. Yll\u00e4pito ja korjaus<\/h2>\n<h3>Harjojen s\u00e4\u00e4nn\u00f6llinen huolto<\/h3>\n<ul>\n<li><strong>Tarkastusten tiheys:<\/strong> kuukausittain kriittisten laitteiden osalta, nelj\u00e4nnesvuosittain yleisk\u00e4ytt\u00f6\u00f6n tarkoitettujen laitteiden osalta \u2014 sopii erinomaisesti <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/periodic-monitoring\/\">reittipohjainen s\u00e4\u00e4nn\u00f6llinen seuranta<\/a>.<\/li>\n<li><strong>Puhdistus:<\/strong> imuroi hiilip\u00f6ly pois ja puhdista kommutaattorin pinta.<\/li>\n<li><strong>Pituuden tarkistus:<\/strong> Vaihda harjat, kun ne ovat saavuttaneet v\u00e4himm\u00e4ispituuden.<\/li>\n<li><strong>Jousen kireys:<\/strong> tarkista, ett\u00e4 paine on oikea.<\/li>\n<li><strong>Kommutaattorin kunto:<\/strong> tarkista, onko pinnassa naarmuja, syvennyksi\u00e4 tai kohoumia.<\/li>\n<\/ul>\n<h3>Harjan vaihto<\/h3>\n<ul>\n<li>K\u00e4yt\u00e4 k\u00e4ytt\u00f6tarkoitukseen sopivaa laatua \u2013 ota yhteytt\u00e4 valmistajaan.<\/li>\n<li>Vaihda kaikki sarjan harjat kerralla.<\/li>\n<li>Varmista, ett\u00e4 harjat istuvat kunnolla pidikkeisiin.<\/li>\n<li>Anna uusien harjojen asettua kunnolla 24\u201348 tunnin ajan.<\/li>\n<li>Tarkista jousen paine uudelleen asennuksen j\u00e4lkeen.<\/li>\n<\/ul>\n<h3>Kommutaattorin huolto<\/h3>\n<ul>\n<li>Puhdista s\u00e4\u00e4nn\u00f6llisesti hyv\u00e4ksytyill\u00e4 liuottimilla tai hiomakivill\u00e4.<\/li>\n<li>Sorvaa (koneella) kommutaattori, jos siihen on muodostunut uria tai se on karhentunut.<\/li>\n<li>Jyrsi (aliperaa) kiille lamelliv\u00e4leihin m\u00e4\u00e4ritellyist\u00e4 kohdista.<\/li>\n<li>Tarkista, onko lamelleja koholla, l\u00f6ys\u00e4ll\u00e4 tai vaurioituneena.<\/li>\n<\/ul>\n<h2>6. Ennaltaehk\u00e4isyn parhaat k\u00e4yt\u00e4nn\u00f6t<\/h2>\n<h3>Toimintatavat<\/h3>\n<ul>\n<li>K\u00e4yt\u00e4 laitetta nimellisvirran rajoissa, jotta hiiliharjojen kuumeneminen pysyy kurissa.<\/li>\n<li>V\u00e4lt\u00e4 liian tihe\u00e4\u00e4 k\u00e4ynnistyst\u00e4 \u2014 k\u00e4ynnistysvirta rasittaa hiiliharjoja.<\/li>\n<li>Pid\u00e4 ymp\u00e4rist\u00f6 puhtaana ep\u00e4puhtauksien est\u00e4miseksi.<\/li>\n<li>S\u00e4\u00e4d\u00e4 ilmankosteutta; liian kuiva tai liian kostea ilma heikent\u00e4\u00e4 kosketusta.<\/li>\n<\/ul>\n<h3>Valinta ja suunnittelu<\/h3>\n<ul>\n<li>M\u00e4\u00e4rit\u00e4 virrantiheyteen sopiva harjan kovuusluokka \u2013 pehme\u00e4 tai kova.<\/li>\n<li>Varmista, ett\u00e4 virtaa varten on k\u00e4ytett\u00e4viss\u00e4 riitt\u00e4v\u00e4 m\u00e4\u00e4r\u00e4 harjoja.<\/li>\n<li>K\u00e4yt\u00e4 asianmukaista harjanpidikett\u00e4.<\/li>\n<li>Harkitse harjattomia vaihtoehtoja uusiin asennuksiin<\/li>\n<\/ul>\n<p>Vaikka harjaviat ovat tyypillisi\u00e4 tasavirtak\u00e4ytt\u00f6isille ja k\u00e4\u00e4mir\u00f6ottorillisille koneille, ne ovat t\u00e4rkeit\u00e4 huoltokohteita, joiden s\u00e4\u00e4nn\u00f6llinen tarkastus ja oikea-aikainen vaihto kannattaa. Kulumismekanismien selke\u00e4 ymm\u00e4rt\u00e4minen, hyv\u00e4t huoltok\u00e4yt\u00e4nn\u00f6t ja vikailmi\u00f6iden tunnistaminen pit\u00e4v\u00e4t harjatyyppiset moottorit luotettavasti k\u00e4ynniss\u00e4 \u2013 ja est\u00e4v\u00e4t laiminly\u00f6dyist\u00e4 harjoista johtuvat s\u00e4hk\u00f6iset ja mekaaniset vauriot.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/\">\u2190 Takaisin p\u00e4\u00e4hakemistoon<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Opi tasavirtamoottoreiden ja kelaroottoristen koneiden harjavioista, kuten kulumisesta, t\u00e4rin\u00e4st\u00e4, kipin\u00f6innist\u00e4 ja huonosta kosketuksesta, jotka aiheuttavat t\u00e4rin\u00e4\u00e4 ja s\u00e4hk\u00f6ongelmia.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-64","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/64","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/64\/revisions"}],"predecessor-version":[{"id":101429,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/64\/revisions\/101429"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/media?parent=64"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/categories?post=64"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/tags?post=64"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}