1. When loading and unloading the rotor should be careful operation, loading and unloading should be slightly lift the connecting rod to operate, do not use too much force, do not make the rotor lateral force, so as not to bend the rotor.
2. Please do not put or reverse the viscometer that has been installed on the rotor.
3. The connection screw and rotor connection end and thread to keep clean, otherwise it will affect the degree of rotor wobble.