SAE J1204:2017 pdf free
SAE J1204:2017 pdf free.Wheels – Recreational and Utility Trailer Fatigue Test Procedure and Performance Requirements
Terminate the test when any of the following conditions occur.
a. Wheel exceeds the initial deflection at point of load application by 20%.
b. A visually detected crack penetrating through a section of the wheel in the base metal or propagation of any existing fracture/crack resulting in a fatigue crack penetrating through any section of the wheel at the minimum cycles for the sample size used specified as in Table 1. Inspection should be done at the minimum cycles for the sample size used in Table 1. Cracking in the wheel finish alone shall not be the basis for finding a test termination.
c. One or more lug nuts loosening to less than 60% of the initial torque at the minimum cycles for the sample size used as specified in Table 1. If loosening is due to broken wheel bolts, studs, or nuts (see 6.4.1e). Inspection should be done at the minimum cycles for the sample size used as specified in Table 1.
d. Break or crack of a functional fastener.
e. Broken lug bolts or other parts of the test fixture do not require test termination but may result in damage to the wheel and test invalidation. Broken lug bolts shall not be replaced more than once per test. All bolts should be replaced if lug bolts are replaced. If necessary the test shall be terminated and the wheel retested or replaced and retested.
A change bar (l) located In the left margin is for the convenience of the user in locating areas where technical revisions,not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document tile indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publicalions, nor in documents that contain editorial changes only.SAE J1204 pdf free download.
