3.14 SCR system
3.14.1 SCR system maintenance
AGCO POWER SCR system is durable and almost maintenance free. Only main filter change for supply
module is required in normal use. AGCO POWER SCR is equipped with on-board diagnostic, which will
warn the operator or limit the usage of the machine if any problems (e.g. leakages or blocking of lines)
occur in the system.
NOTE: Engine with SCR system meets EU97/68/EC Stage lllB and EPA 40 CFR 1039 Tier 4i emission
requirements. Engine without SCR system meets EU97/68/EC Stage 2 and EPA 40 CFR 89 Tier 2 emission
requirements.
Do not fit any components on the engine other than those originally intended for it. The use of other than
original AGCO Parts spare parts invalidates the responsibility of AGCO Power Inc. on the meeting of the
emission requirements.
CAUTION:
Make sure that genuine DEF (DIN 70070 or ISO 22241 certified) is used as a reducing
agent. Diluting of DEF or mixing it with other substances is not allowed, it may damage
the catalyst!
CAUTION:
Make sure that genuine DEF (DIN 70070 or ISO 22241 certified) is used as a reducing
agent. If urea quality sensor detects a problem related to urea quality, it will alert the
engine control system via CAN message thus causing the engine to run under degraded
mode.
CAUTION:
Even small amounts of diesel fuel in DEF tank may damage the gaskets of the SCR
system!
CAUTION:
The storage of DEF must be done under 30°C, avoiding direct sunlight.
3.14.2 Mounting of SCR system components
Dosing module (DM)
Dosing module is mounted with three M6x20
screws. Tightening is done in two stages:
1 Tighten the screws in sequence shown in
picture until the gasket is pressed evenly to
its mounting surface on the exhaust.
2 Tighten the screws to 8 Nm torque in
sequence shown in picture.
NOTE: Always change the gasket when opening
the dosing module joint.
Fig. 113
3. Maintenance
4th Generation Engines 3-69
8370 79492
To Next Page
Loading...