Ukongeza ekubeni neempawu ezithile zoomatshini, ukusebenza kokungangeni kwamanzi lolona phawu lubalulekileyo lwamandongomane angangeni manzi. Amantongomane angangeni manzi kufuneka avavanye ngokungqongqo ukuthintela amanzi ukuze aqinisekise ukuba anokuthintela amanzi ukuba angangeni kumalungu phantsi kweemeko ezichaziweyo, njengoxinzelelo lwamanzi kunye nexesha lokuntywila. Izicelo ezahlukeneyo zifuna ukulinganisa okuhlukeneyo kokungangeni kwamanzi kwiindongomane ezingenamanzi. Umzekelo, kwezinye izibane zangaphandle ezidityanisiweyo, i-IPX4 yokungangeni kwamanzi (i-splash resistance) inokwanela, ngelixa izixhobo eziphantsi kwamanzi zinokufuna i-IPX8 yokungangeni manzi (ukuntywiliselwa ixesha elide). Ngaphaya koko, ngelixa uqinisekisa itywina, amandongomane angangeni manzi kufuneka kwakhona agcine uzinzo lokusebenza kuwo wonke amaqondo obushushu ahlukeneyo, ukuqinisekisa ukuba izinto zokutywina ezifana neegaskets zerabha aziphulukani nokunwebeka kwazo ngenxa yokuguquguquka kweqondo lobushushu, nto leyo ebeka esichengeni ukuvalwa kwamanzi.
Ngokwesicelo, amantongomane aqhelekileyo anoluhlu olubanzi lwezicelo, ezigubungela phantse zonke iindawo ezifuna uqhagamshelo ngoomatshini. Ekwakhiweni, amantongomane aqhelekileyo asetyenziselwa ukukhusela izakhiwo zetsimbi kunye ne-scaffolding; kwimveliso yeemoto, badibanisa amacandelo afana neenjini kunye ne-chassis; nakwimveliso yezixhobo zombane, bakhusela iibhodi zeesekethe kunye neecasings. Logama nje indawo engqongileyo isomile kwaye iimfuno zokungangeni kwamanzi azingqongqo, amandongomane aqhelekileyo anokwenza kakuhle.
Amantongomane angangeni manzi asetyenziswa ngokuyintloko kwizicelo apho ukuvalwa kwamanzi kuyimfuno ebalulekileyo. Amantongomane angangeni manzi asetyenziswa kwizixhobo zombane zangaphandle, njengezibane zesitrato kunye neebhokisi zokuhambisa, ukukhusela ukungena kwamanzi emvula kunye nokukhusela amacandelo ombane angaphakathi kumonakalo womswakama. Zibaluleke kakhulu kulwakhiwo lweenqanawa kunye nobunjineli baselwandle, ukudibanisa iidekhi zeenqanawa, ii-bulkheads, kunye nezixhobo eziphantsi kwamanzi ukuqinisekisa uqhagamshelo oluthembekileyo nolungenamoya kwiindawo ezingqonge amanzi olwandle. Ngaphaya koko, amandongomane angangeni manzi asetyenziswa kwindawo yokuhlambela, kwizixhobo zedama lokuqubha, kunye nezinye iindawo ezihlala zisesichengeni samanzi ukuqinisekisa ukusebenza kakuhle nokuphila ixesha elide.
Ngokufakela kunye nokugcinwa, amantongomane aqhelekileyo alula ukuyifaka kwaye anokuqiniswa kwi-torque echaziweyo usebenzisa izixhobo eziqhelekileyo ezifana nezitshixo. Ukuba i-nut iyakhululeka okanye yonakaliswe ngexesha lokugcinwa, kulula ukuyitshintsha ngenxa yesakhiwo sayo sendalo yonke kunye neenkcukacha.