Engine Derate

For some conditions (see table below), engine derate can occur first and a condition worsens, then engine shutdown can occur .

Condition Engine Dera

Intake Manifold Air T emperatur e

Engine T urbocharger Compr essor Outlet T emperatur e

Engine Exhaust Gas

Recir culation (EGR) temperature exceeds 220°C (428°F) for more than seconds with a second derate starts.

Derate starts 120°C (248°F). Full derate (100%) occurs when temperature 140°C (284°F).

Derate starts 245°C (473°F). T que derated down 100% 250°C (482°F).

T emperatur e temperature reaches 240°C (464°F), a 100% derate

Crankcase essur e (CCP) a change pressure (dif ference between the CCP and barometric pressure (BARO)) rises about 5 kPa ( 0.725 psi ) with fset & 0.5 kPa/s ( 0.07 psi/s ) and stays over 5 kPa ( 0.725 psi ) for more than 80% the time during 1 the engine will fully derate (100%), forced and shut

High Engine Coolant T emperatur e (ECT)

Derate starts 106.75°C ( 224.15°F ) and ramps down 12% T orque kept constant until the temperature reaches 107.25°C ( 225.05°F

Derate starts again 107.4°C ( 225.32°F) and ramps down 32% derate.

Engine Shutdown T Lights

engine warning engine warning engine warning

Engine Red engine shutdown indicator

Amber malfunction indicator lights 107.2°C ( 224.96°F

Red engine shutdown indicator lights 108°C ( 226.4°F

T orque derated down 100% 108.4°C ( 227.12°F Engine shutdown temperature rises 109°C ( 228.2°F

Condition Engine Dera

Engine Oil T emperatur e (EOT)

Derate starts with 10% derate 129°C ( 264.2°F ) more for 75% a 4 second 132°C ( 269.6°F ) a 100% derate

Engine Shutdown T Lights

Engine shutdown temperature rises 135°C ( 275°F

Amber malfunction indicator lights when temperature 129°C ( 264.2°F

Red engine shutdown indicator lights when temperature 131°C ( 267.8°F

After etr eatment

Diesel Particulate Filter (DPF) Soot

For Catalyzed A TS: Derate starts when soot trigger ratio and continues down 20% derate.

Amber malfunction indicator lights when soot trigger ratio 1.4.

For Catalyzed A TS: T orque ramped down 80% derate when soot trigger ratio 1.7.

Red engine shutdown indicator lights when soot trigger ratio 1.7.

For Non - Catalyzed A TS: Derate starts when soot trigger ratio Amber malfunction indicator lights when soot trigger ratio

For Non - Catalyzed A TS: T orque ramped down 40% derate when soot trigger ratio Full derate occurs when soot trigger ratio

Engine T urbocharger Wheel

For 1 1 and liter engines, derate starts Full derate (100%) occurs

For liter engines, derate starts Full derate (100%) occurs

Red engine shutdown indicator lights when soot trigger ratio engine warning

* - A (Aftertreatment Please refer page for information the Exhaust Aftertreatment