Ing mesin mlaku, karo stethoscope marang Nihan pump, nalika ngganti kacepetan engine, pump prewangan nyandhang watesan utawa lack of lenga, sampeyan bisa krungu wedhi, wedhi, wedhi gangguan; Yen prewangan ngeculke ing omah pump, ana yaiku swara tabrakan tipis.Pompa swara abnormal umume pu...
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