A NY leaf spring is considered out of service when missing or broken leaves equal what fraction of the total?

A NY leaf spring is considered out of service when missing or broken leaves equal what fraction of the total?

• A. 1/4 of the total leaves
• B. 1/2 of the total leaves
• C. 1/8 of the total leaves
• D. 1/3 of the total leaves

Answer: (A)

Leaf springs share the load across multiple leaves, so missing or broken leaves weaken the spring and can throw off ride height and axle alignment. The standard rule is that a spring is out of service when missing or broken leaves total one-quarter of the leaves in the spring. For example, with 12 leaves, 3 or more damaged or missing leaves mean it’s out of service. The other fractions don’t match this regulatory threshold, which is why one-quarter is the correct guideline.

Leaf springs share the load across multiple leaves, so missing or broken leaves weaken the spring and can throw off ride height and axle alignment. The standard rule is that a spring is out of service when missing or broken leaves total one-quarter of the leaves in the spring. For example, with 12 leaves, 3 or more damaged or missing leaves mean it’s out of service. The other fractions don’t match this regulatory threshold, which is why one-quarter is the correct guideline.