I, post usum ferri pullulat, in pluteo dedicato collocari oportet, in officina ventilata, sicca, munda, manu custodiae condita.

II, superficies semper rubiginem custodiri debet, non licet in acido, alcali, sale, vaporibus chemicis et humore repono.

III, prohibitus in caliditas area repono.

IV, regulariter mundare partes gyrationis, lubricants regularis, ne frictionem aridam, vallum phaenomenon.