wc_tx003871gb_FM10.fm159Machines with Aftertreatment Exhaust System15.4 Monitoring and Control of the DEF LevelThe Diesel Exhaust Fluid (DEF) level is monitored by the genset controller. Innormal operation, the DEF level (in percentage of the DEF tank capacity) isdisplayed on the left side of the LCD screen. When the DEF tank begins to empty,the genset controller displays messages alerting the operator of the condition ofthe DEF supply. See table below.Refilling the DEF tank before the DEF level reaches 2.5% avoids DEF-level-related engine shutdowns.DEF INDUCEMENTwc_gr012296DEF Level Controller Message Controller / Machine Response≥ 10% No message Normal screen / normal operation2.5–10% DEF WARNING ■ Normal operation.■ LED flashes.0–2.5% DEF INDUCEMENT ■ Main circuit breaker trips.■ Machine runs for 10 minutes, then shuts down.■ During shutdown the LED is on solid and the LCD screenshows LOW DEF SHUTDOWN.The machine may be restarted without adding any DEF, butwill only run for 10 minutes before the genset controllershuts down the machine. Only the convenience receptaclesare available.0% DEF PRESVR INDUCMT Same as above plus the engine’s SEVERE INDUCMT timerstarts.30 minutesafter 0%DEF SEVERE INDUCMT ■ After 30 minutes of run time with 0% DEF, the engineshuts itself down. This is the first of four shutdownsallowed by the engine.Note: The genset controller’s 10-minute run time limitationis still active within the 30-minute engine run time limit.Thus, up to three restarts by the genset controller arepossible within the 30-minute engine-controlled run time.■ The engine will allow four such shutdowns to occur. On thefourth shutdown, the engine controller will lock out theengine. The engine can only be unlocked by a Cumminsservice technician.
