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Yakagadzirirwa zvakanangana neSANY uye akasiyana marudzi emidziyo yekusimudza, iyi ndiyo yakakosha kuchengetedza mudziyo kudzivirira hoko kudarika uye kuve nechokwadi chekuchengetedza kuvaka.
Ichi chigadzirwa ndicho chekutanga fekitori-inofananidzwa kureba limiter (anti-overwinding switch) yeSANY rori cranes, yakanyatsogadzirirwa kuchengetedzwa kwecrane mashandiro. Kana chirauro ichikwira kusvika paurefu hwepreset, mudziyo unongocheka dunhu rekusimudza uye unokonzeresa inonzwika-inooneka alarm, kudzivirira tsaona dzekuchengetedza senge hook overtravel uye tambo yetambo. Icho chinhu chakakosha chekuchengetedza kuchengetedza mudziyo wekusimudza mashandiro.
Iyo SANY GJ-1 Overwind Switch chishandiso chekudzivirira chakanyatsogadzirirwa kusimudza muchina. Nekutarisa-chaiyo-nguva yekutarisa nzvimbo yehuku, inokurumidza kucheka seti yekusimudza yekudzora kana preset muganho kureba kwasvika, kudzivirira zvakanyanya tsaona senge simbi waya tambo overwinding, kutyoka uye hook overtopping. Inopa kuchengetedzwa kwakavimbika kwemidziyo uye kuchengetedza kwevashandi. Ichi chigadzirwa chinopindirana nezvose zvakatevedzana zveSANY cranes, crawler cranes, marori cranes uye port hoisting midziyo, ine yakakwirira yekudzivirira pamwero uye yakasimba yekudzivirira-kukanganisa kugona kugadzirisa kune akasiyana siyana akaoma mamiriro ekushanda.