Pump cap ndi mapangidwe omwe amagwiritsidwa ntchito nthawi zambiri popanga zodzoladzola, zinthu zosamalira anthu, komanso zinthu zoyeretsera. Iwo ali ndi makina a pampu omwe amatha kukanikizidwa kuti athandize wogwiritsa ntchito kutulutsa madzi okwanira kapena mafuta odzola. Chophimba chamutu cha pampu ndi chosavuta komanso chaukhondo, ndipo chimatha kuteteza zinyalala ndi kuipitsa, ndikupangitsa kukhala chisankho choyamba pakulongedza zinthu zambiri zamadzimadzi.