Engine Exhaust After Treatment - jcb JS300 Service Manual

Overview
The engine exhaust system is fitted with a Diesel
Particulate Diffuser (DPD) 5, which consists of the
following elements:
– An oxidation catalyst to reduce NOx and hydrocarbon
emissions.
– A dedicated filter to collect particle matter (soot)
emitted from the engine.
– An exhaust silencer.
2
1
Item Device
1 Exhaust outlet
2 Sensor - exhaust differential pressure
3 Exhaust inlet
4 Sensors - exhaust temperature
5 Diesel Particulate Diffuser (DPD)
6 Load assist solenoid valve
7 MECU
8 Engine ECU
C-88

Engine Exhaust After Treatment

3 4
5
Fig 26.
9813/5100-1
Section C - Electrics
Engine and Power Control
Engine Exhaust After Treatment
Sensors on the DPD are connected to the engine ECU.
This enables monitoring of the DPD status. The engine
ECU responds to the inputs to ensure effective engine
emission control.
K DPD Filter Regeneration ( T C-89)
K Servicemaster T4i DPD Diagnostics Tool ( T C-91)
K DPD Devices ( T C-95)
K DPD Fault Finding ( T C-102)
7
6
CANbus
4
3
12
5
Item Device
9 Regeneration console switch
10 Silencer
11 Particle matter filter
12 Oxidation catalyst
8
9
2
1
11 10
C146720-C1
C-88