{"id":7941,"date":"2022-12-28T14:47:33","date_gmt":"2022-12-28T14:47:33","guid":{"rendered":"https:\/\/www.excavatorenginepart.com\/?p=7941"},"modified":"2022-12-28T14:50:18","modified_gmt":"2022-12-28T14:50:18","slug":"the-common-failure-of-excavator-hydraulic-pump","status":"publish","type":"post","link":"https:\/\/www.excavatorenginepart.com\/sv\/det-vanliga-felet-med-gravmaskinens-hydrauliska-pump\/","title":{"rendered":"Vanliga fel p\u00e5 gr\u00e4vmaskinens hydrauliska pump"},"content":{"rendered":"

Det gemensamma misslyckandet med Hydraulisk pump f\u00f6r gr\u00e4vmaskiner<\/a><\/strong><\/p>\n

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1. Motor<\/a> hastigheten sjunker.<\/strong><\/p>\n

F\u00f6rst och fr\u00e4mst m\u00e5ste sj\u00e4lva motorns uteffekt testas. Om motorns uteffekt \u00e4r l\u00e4gre \u00e4n m\u00e4rkeffekten kan orsaken till felet vara d\u00e5lig br\u00e4nslekvalitet, l\u00e5gt br\u00e4nsletryck, fel ventilspel, en cylinder i motorn fungerar inte, fel insprutningstid, fel inst\u00e4llning av br\u00e4nslem\u00e4ngden, luftl\u00e4ckage i insugningssystemet, bromsen och dess styrspak \u00e4r felaktiga och kolackumulering i turboladdaren. Om pumpstyrsystemet inte fungerar kan lastoptimering och matchning av motor, pump och ventil under olika arbetsf\u00f6rh\u00e5llanden inte realiseras, och gr\u00e4vmaskinen fungerar inte normalt. Denna typ av fel b\u00f6r b\u00f6rja fr\u00e5n det elektriska systemet och sedan kontrollera hydraulsystemet. Kontrollera slutligen det mekaniska transmissionssystemet.<\/p>\n

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2. Arbetshastigheten s\u00e4nks. <\/strong><\/p>\n

Den fr\u00e4msta orsaken till gr\u00e4vmaskinens l\u00e5ga arbetshastighet \u00e4r minskad motoreffekt och l\u00e4ckage i hydraulsystemet som orsakas av slitage p\u00e5 alla delar i hela maskinen. Gr\u00e4vmaskinens hydraulpump \u00e4r en variabel kolvpump. Efter att ha arbetat under en viss tid kommer pumpens interna hydrauliska komponenter (cylinderblock, kolv, ventilplatta, nioh\u00e5lsplatta, sk\u00f6ldpadda etc.) oundvikligen att ge \u00f6verdrivet slitage, vilket kommer att orsaka internt l\u00e4ckage, och parametrarna \u00e4r inte samordnade, vilket resulterar i otillr\u00e4ckligt fl\u00f6de, h\u00f6g oljetemperatur och l\u00e5ngsam arbetshastighet. Vid denna tidpunkt \u00e4r det n\u00f6dv\u00e4ndigt att se \u00f6ver hela maskinen, reparera och byta ut de delar som \u00f6verskrider gr\u00e4nsen f\u00f6r slitage.<\/p>\n

3. Gr\u00e4vmaskiner<\/a> \u00e4r svaga.<\/strong><\/p>\n

Svag utgr\u00e4vning \u00e4r ett av de typiska felen hos gr\u00e4vmaskiner. Det finns tv\u00e5 situationer f\u00f6r svag utgr\u00e4vning: en \u00e4r svag utgr\u00e4vning, motorn h\u00e5ller inte bilen och lasten \u00e4r mycket l\u00e4tt; Den andra \u00e4r att gr\u00e4va svagt, n\u00e4r bommen eller skopst\u00e5ngen n\u00e5r slutet, h\u00e5ller motorn allvarligt bilen eller till och med stall\u3002<\/p>\n

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Mer Hydraulisk pump f\u00f6r gr\u00e4vmaskiner,www.excavatorenginepart.com\u00a0<\/strong><\/p>\n

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The Common Failure of Excavator Hydraulic Pump 1. Engine speed drops. First of all, the output power of the engine itself must be tested. If the output power of the engine is lower than the rated power, the cause of the failure may be poor fuel quality, low fuel pressure, wrong valve clearance, a cylinder […]<\/p>","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","om_disable_all_campaigns":false,"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7941","post","type-post","status-publish","format-standard","hentry","category-tips"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/posts\/7941","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/comments?post=7941"}],"version-history":[{"count":4,"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/posts\/7941\/revisions"}],"predecessor-version":[{"id":7945,"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/posts\/7941\/revisions\/7945"}],"wp:attachment":[{"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/media?parent=7941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/categories?post=7941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.excavatorenginepart.com\/sv\/wp-json\/wp\/v2\/tags?post=7941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}