This standard specifies the technical requirements for the installation and lubrication of beam-type pumping units (the fulcrum is in the middle of the beam). This standard applies to the installation of beam pumping units (the fulcrum is in the middle of the beam) and the lubrication of the reducer. For the installation and lubrication of other types of beam pumping units (the fulcrum is at one end of the beam), please refer to this standard.
SY/T 6668-2006 Referenced Document
GB 5903-1995 Gear oils for industrial enclosed gear drives
SY/T 6668-2006 history
2016SY/T 6668-2016 Installation and maintenance of beam pumping unit
2006SY/T 6668-2006 Installation and Lubrication of beam pumping units