Includes hardware for hydraulic ladder, guardrails, and access group installation. The ladder is actuated by powertrain hydraulic oil, which means the tractor must be running to move the ladder either up or down. The actuation switch for the ladder is located on the grab rail outside the left side cab access door. All standard boarding steps and handles that are used to mount the tractor via the path up the tracks remain in place for safe boarding in the event that the engine is not running or the boarding ladder is damaged or fails. These standard steps and handles also provide secondary egress or access. With the engine idling, the ladder will extend or retract in less than 20 seconds.For further details, reference media available at catpublications.com (PEHJ0277) and SIS2.cat.com (REHS5305) or contact your local Cat® Dealer.