{"product_id":"case-980-excavator-service-manual-workshop-guide","title":"Case 980 Excavator Service Manual Workshop Guide","description":"Format : PDF\u003cbr\u003eSUPPLIED AS DOWNLOADABLE LINK\u003cbr\u003e\u003cbr\u003eManual Included:\u003cbr\u003eService Manual:\u003cbr\u003e513 pages\u003cbr\u003eSpecifications:\u003cbr\u003eBrand:\u003cbr\u003eCase\u003cbr\u003eModel:\u003cbr\u003e980\u003cbr\u003eType:\u003cbr\u003eExcavator\u003cbr\u003eManuals:\u003cbr\u003eService Manual\u003cbr\u003ePublication Numbers:\u003cbr\u003e9-73476 (May 1977)\u003cbr\u003eLanguage:\u003cbr\u003eEnglish\u003cbr\u003eFormat:\u003cbr\u003ePDF\u003cbr\u003e\u003cbr\u003eDescription\u003cbr\u003eTable of Contents\u003cbr\u003eGeneral\u003cbr\u003eEngines\u003cbr\u003eFuel System\u003cbr\u003eHydraulics\u003cbr\u003eTrack and Suspension\u003cbr\u003ePower Train\u003cbr\u003eBrakes\u003cbr\u003eMounted Equipment\u003cbr\u003eManual Extract Engine Preignition\u003cbr\u003ePreignition is the igniting of the fuel before the normal ignition occurs. This causes wild pinging, severe knock, and power loss. High temperature and pressure from preignition usually burns a hole through the center of the piston. The following are causes of preignition:\u003cbr\u003eA. Carbon deposits that remain incandescent.\u003cbr\u003eB. Valves operating at higher than normal temperature because of excessive guide clearance or improper seal with valve seats.\u003cbr\u003eC. Hot spots caused by an inefficient or damaged cooling system.\u003cbr\u003eD. Nozzles set at wrong cracking pressure.\u003cbr\u003eE. Detonation or conditions leading to it.\u003cbr\u003eF. Sharp edges in combustion chamber.\u003cbr\u003eG. Wrong or contaminated fuel.","brand":"Uploader","offers":[{"title":"Default Title","offer_id":53593156878667,"sku":null,"price":58.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/2519\/4315\/files\/1-44_a6aefee6-d2ed-4600-a97e-b9c75008d4bb.png?v=1760372447","url":"https:\/\/manualbull.com\/products\/case-980-excavator-service-manual-workshop-guide","provider":"ManualBull","version":"1.0","type":"link"}