NEW JOHN DEERE INDUSTRIAL TRANSMISSION

Design criteria, major components, unique features, hydraulic circuitry, and durability testing are described which were used to develop a new power shift transmission for the John Deere 844 front end loader. Features include a planetary pack with four forward and three reverse speeds, drop train gears, output shaft with a parking collar, and hydraulic valving. High torque and energy capacity, along with a new pressure-modulating valve, provide smooth and rapid shuttle shifting from the transmission at full power which is vital to the loader's productivity. Extensive laboratory, dynamometer, and field testing has proved the transmission's performance and reliability.

  • Availability:
  • Supplemental Notes:
    • Presented at SAE Earthmoving Industry Conference, Peoria, Illinois, 23-25 April 1979.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Harvey, J R
  • Publication Date: 1979

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00386670
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: SAE 790524, HS-029 226U
  • Files: HSL, USDOT
  • Created Date: Jun 28 1984 12:00AM