Mano a masika ooneka ngati S, mano a masika opangidwa ndi hay rake, mano a masika opangidwa ndi pickup spring
Mano a masika ooneka ngati S, monga zinthu zofunika kwambiri pa ntchito zamakono zaulimi, amagwiritsidwa ntchito kwambiri pazochitika monga kutola udzu, kukonza udzu, kukonza malo, ndi kuchotsa mbewu. Chogulitsachi chimagwiritsa ntchito chitsulo chapamwamba kwambiri cha kaboni kapena chitsulo cha masika chogwira ntchito bwino (monga 65Mn) ngati maziko ndipo chimapangidwa kudzera mu njira yochizira kutentha, kuwonetsa kapangidwe kapadera ka "S". Kapangidwe kameneka kamapatsa mphamvu yosinthika bwino komanso kukana kutopa kwambiri, zomwe zimathandiza kuti chikhale chokhazikika panthawi yogwira ntchito yobwerezabwereza komanso kupewa kusokonekera kwa pulasitiki kapena kusweka.
Ponena za magwiridwe antchito, mano a masika ooneka ngati S ali ndi luso labwino kwambiri lotsatira malo. Makhalidwe awo otambalala amalola nsonga za mano kubwereranso zokha ndikupewa zopinga zolimba monga miyala ndi makoma, zomwe zimathandiza kuchepetsa chiopsezo cha kuwonongeka kwa chipangizocho komanso kuonetsetsa kuti nthaka ikutsukidwa bwino. Kaya ikusonkhanitsa ndikuumitsa mbewu zosiyanasiyana monga alfalfa ndi oats, kapena kukonza udzu mutakolola mbewu monga chimanga ndi tirigu, mano a masika ooneka ngati S amagwira ntchito zoyera kwambiri, kuchepetsa kutayika kwa zinthu ndi kuchotsa nthaka kuchokera ku mizu.
Kuphatikiza apo, pamwamba pa chinthucho pamakhala utoto kapena mankhwala oletsa dzimbiri a Dacromet, zomwe zimapangitsa kuti chikhale cholimba komanso cholimba, zomwe zimapangitsa kuti chikhale choyenera kugwiritsidwa ntchito m'malo osiyanasiyana ovuta monga chilala, chinyezi, ndi fumbi. Kapangidwe kake kokhazikika kamatsimikizira kuti chimagwira ntchito zosiyanasiyana, zomwe zimathandiza kuti chigwirizane mwachangu ndi ma rake osiyanasiyana a chala, ma rakers apakati, ma spring-tooth harrows, ndi makina onyamula, zomwe zimachepetsa kwambiri ndalama zokonzera ndi kusintha kwa ogwiritsa ntchito.
Chifukwa cha kulimba kwake kwakukulu, nthawi yayitali, kutopa pang'ono, komanso kusinthasintha kwamphamvu pakugwira ntchito, dzino la mtundu wa S-type spring tooth lakhala limodzi mwa magawo ofunikira kwambiri pakukweza magwiridwe antchito ndi kudalirika kwa makina azolimo.







