Caterpillar Inc.

Walter Joseph Laylock

Sunil I Mathew

James R Carlberg

A method for protecting the suspension and frame of a vehicle is provided. The method may include providing a first working mode where the strut is at a fully expanded state, providing a second working mode where the strut is at a partially collapsed state, and providing a fail-safe working mode where the strut is at a fully collapsed state. The method may further comprise alerting the user that the strut is operating in the fail-safe working mode and servicing the strut by placing a fail-safe member into the strut.

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Metamora, IL, United States of America

Walter Joseph Laylock