Maintenance work on the carrier
7.5 Exhaust system with exhaust emission control
03.11.2017
Maintenance manual 3 302 574 en 7 - 39
GMK3060
7.5 Exhaust system with exhaust emission control
Overview To adhere to the exhaust emission regulations, you are only permitted to
drive the crane with the multi-stage exhaust system consisting of a
DOC catalytic converter, DPF particle filter and SCR catalytic converter
(DOC = Diesel Oxidation Catalyst, DPF = Diesel Particulate Filter,
SCR = Selective Catalytic Reduction).
The exhaust gas is cleaned with an AdBlue system (DEF). AdBlue
(DEF) (Diesel Exhaust Fluid) from the AdBlue tank is injected into the mixing
tube in the exhaust system for this.
The motor output is automatically sharply reduced when there is not
enough AdBlue solution available. Driving with an empty AdBlue tank will
invalidate the truck crane's licence for use on public roads;
à Operating
Instructions
, à Engine manufacturer’s documentation.
AdBlue system
1 Pump unit
for pumping AdBlue to the dosing unit
on the diesel engine and for pumping
engine coolant for preheating the
AdBlue tank.
2 AdBlue tank
3 Tank gauge, AdBlue tank
4 Warning lamp:
AdBlue system fault.
5 3 warning lamps:
Exhaust gas temperature, active/passive
regeneration of the exhaust gas filter.
6 Tail pipe:
DOC catalytic converter and DPF particle
filter.
7 Tail pipe:
SCR catalytic converter.
8 AdBlue mixing tube with injection nozzle
For injecting the mixture of
AdBlue and compressed air.
9 Exhaust end pipe with rain flap
10 Diesel engine
with dosing unit for AdBlue (compressed
air supply) and a solenoid valve for pre-
heating the AdBlue tank using engine
coolant.
11 Heat shield
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