GHG17 DD Medium Duty Operators Manual NOTICE: When the RSL (Stop Engine) comes on, the system has detected a major malfunction in the engine that requires immediate attention. It is the operator's responsibility to shut down the engine to avoid serious damage. The engine can be configured to give a warning only, to ramp down (reduce power) or to shut down. Ramp down will reduce engine rpm to a predetermined speed, but will not shut down the engine. With the 30-second shutdown option, the engine will begin a 30-second, stepped power down sequence until it shuts down completely.
The "Stop Engine Override" feature can be activated in the case where the vehicle is operating in a critical location. Stop Engine Override Switch This feature allows the operator to override the automatic Stop Engine sequence. This is done by pressing the Stop Engine Override Switch every 15 to 20 seconds to prevent engine shutdown from occurring. NOTE: Continuously holding down the Stop Engine Override Switch will not prevent the engine shutdown sequence. You must continue to reset the automatic shutdown system by pressing the Stop Engine Override Switch at intervals of approximately 15 to 20 seconds.
It takes 30 seconds from the time the automatic shutdown sequence begins until engine shutdown. Therefore, the operator must press the override switch just prior to engine shutdown and continue to do so until the vehicle can be brought to a stop in a safe location. Immediate Speed Reduction The immediate speed reduction option will bring engine rpm back to a predetermined speed, but will not shut down the engine. The engine should not be restarted after it has been shut down by the engine protection system, unless the problem has been located and corrected. Red Stop Lamp The conditions that will cause the RSL (Stop Engine) to come on are:
High coolant temperature Loss of coolant High oil temperature Low oil pressure Auxiliary shutdown All information subject to change without notice. 33 DDC-SVC-MAN-0192 Copyright © 2017 DETROIT DIESEL CORPORATION