E whā ngā momo mana hōtaka o te 621F me te 721F e āhei ai ngā kaiwhakamahi ki te whakataurite i te putanga mīhini ki te mana miihini e wātea ana. Kei roto i ngā utauta he toki taumaha me ngā rerekētanga o mua e raka-aunoa ana, me ngā rerekētanga tuwhera o muri mō te kukume pai i roto i ngā āhuatanga rerekē. Kua hangaia te toki hei āwhina i te whakaiti i te pakaru o te potae, inā koa i runga i ngā mata pakeke, e ai ki te OEM. Kei te 621F me te 721F he Mōkihi Whai Hua whiriwhiri kei roto ko te tuku tere-rima me te kaitahuri taipana raka-ake mō te tere tere o te haere i te rori, te whakaterenga me ngā wā huringa poto ake, tae atu ki ngā toki me te rerekētanga raka-aunoa me te hōtaka pūnaha matatau. Kei roto i te tuku tere-rima whiriwhiri te āhuatanga Case Powerinch e āhei ai ngā kaiwhakahaere ki te whakatata tere me te tika ki ngā ūnga ahakoa te tere o te miihini. E ai ki a Case mā tēnei āhuatanga ka whakarite kia kore e hoki whakamuri ahakoa i runga i ngā pari pari, kia māmā ake ai, kia tere ake ai te maka ki roto i te taraka.