DC motricium moderatoris est in usu, potest apparere aliquando non potest esse coepi, hoc est quod? Infra parva faciunt ad respondendum est. I. Power damnum, ut potentiae non est bonum, in fronte-finem fuse fusing, motor moderatoris pelagus circuitu et control Circuit fuse et control in singulis parere et components, ita ut ex causa et reparatione. 2. Motor controller failure, such as brush wear serious, jam, spring pressure is not enough makes brush and commutator poor contact, such as processing method is to disconnect the power supply, using a multimeter resistance check the contact resistance between brush and commutator segment, and then find the breakpoint to repair. III. Mechanica defectum, ut motor moderatoris cum mechanica apparatu aut actuator adhæsit, incipiens sub gravibus onus, processus modum est removere potestate copia, ut reperire et reparare mechanica defectum. Ut perorare, ad causam DC motricium controller non potest incipiat, scitis?
