Detroit Diesel MBE 900 Technician Manual page 28

COMPONENTS PRELIMINARY
The EGR shutoff valve, located before the EGR cooler, closes the EGR system during the engine
braking mode to prevent EGR cooler damage from high exhaust pressures. See Figure 2-7.
Figure 2-7 MBE 4000 EGR Shutoff Valve
2-12
All information subject to change without notice. (Rev. 5/05)
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