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EMISSION SOLUTION AND CONTROL
AFTERTREATMENT, MACK
starts and stops automatically as
needed. The Exhaust Aftertreatment
System (EATS) conditioning is required
to maintain normal exhaust
aftertreatment system function and not
be stopped.
Extended idling performed on this
vehicle equipped with an exhaust
aftertreatment system should be carried
out at a low engine idle speed with the
parking brake set. There is no benefit to
using a raised engine idle speed for
extended idling. The only exception is
for active PTO. Utilizing an engine speed
above 1300 rpm is recommended for
vehicles which perform extended idling
with an active PTO.
In order to complete the exhaust
aftertreatment conditioning cycle during
these events the engine speed increases
to approximately 1050–1400 rpm (non-
PTO). Exhaust temperatures elevate
slightly but remain much lower than
temperatures reached during
regeneration and present no danger.
Aftertreatment Control
Module (ACM)
The ACM is an independent module.
Depending on the configuration, the
module can be mounted as part of the
DEF tank or on a bracket near the DEF
tank.
The ACM controls the following
components in the exhaust
aftertreatment system:
• Aftertreatment DEF Dosing Unit
• Aftertreatment DEF Tank Heater
Valve
• Aftertreatment DEF Line Heaters
• Aftertreatment DEF Pump
• Aftertreatment DEF Return Valve
• Aftertreatment DEF Quality Sensor
• Aftertreatment Particulate Matter
(PM) Sensor.
The ACM also monitors the following
values in the exhaust aftertreatment
system:
• Aftertreatment DEF Dosing Pressure
• Aftertreatment DEF Tank
Temperature
• Aftertreatment DEF Tank Level
• Aftertreatment DPF Inlet/Outlet
Temperature
• Aftertreatment DEF Tank Level
Sensor
• Aftertreatment DPF Differential
Pressure
• Aftertreatment DEF Quality
• Aftertreatment DPF Particulate
Matter (PM) Sensor
1
Aftertreatment Control Module (ACM)
200
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Содержание M359
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