J283_200904: Test Procedure for Measuring Hydraulic Lift Capacity on Agricultural Tractors Equipped with Three-point Hitch

Features

Issuing Committee: Machine Technical Steering Committee

Scope

Content: The lift capacity can be determined by Section 4 and/or Section 5. When the results are recorded, the test method shall be identified.

Rationale

Content

The three-point hitch static lift force test procedure was revised to be comparable to current ISO and to 1990 changes to OECD Test Codes. (See OECD document AGR/CA/T(91)24/REV1 for reference.) These test codes use a static lift force corrected to 90% of minimum hydraulic pressure to reflect usable in-field lift forces. This revision is also being proposed for J2708.

The dynamic lift capacity test procedure was expanded to include additional lift times. Lift capacity values for 3 s and 6 s lift times were added to the existing 10 s lift time. This was also done to be more representative of in-field operations.

Determination of tractor height as tested was expanded to include rubber-tracked vehicles.

The report form was revised to reflect these changes.

J283 is not technically equivalent to ISO 789/II due to:

a
Current differences between SAE (ASAE) and ISO hitch dimensions as tested.
b
SAE does not include a lift test at the hitch points.
c
ISO does not have a dynamic test procedure.

Meta Tags

Topics: Center of gravity (CG)
Agricultural vehicles and equipment
Test procedures
Hydraulic systems
Frames

Details

DOI: https://doi.org/10.4271/J283_200904

Pages: 6

Citation: SAE International Technical Standard, Test Procedure for Measuring Hydraulic Lift Capacity on Agricultural Tractors Equipped with Three-point Hitch, SAE Standard J283_200904, Reaffirmed April 2009, Issued January 1972, https://doi.org/10.4271/J283_200904.

Additional Details