Reduction of the engine power and engine revolutions
If there is a serious error in the system or if the level of urea in the tank is low, the reaction of the system is
reduced engine power output and revolutions. According to the error type, so-called one-stage or two-stage
reduction of engine output is performed.
A serious error can be caused by unauthorised interference in the system of treatment of
exhaust gases!
S15N045
If the first phase of the reduced engine power and engine revolutions is approaching, it is indicated for the
tractor operator on the display of the instrument panel (1) or (2) together with an acoustic signal and
indication of signal lamps. After the transitional period of 10 h for Stage IV (97/68/EC) or 1.5 h for Tier 4f
(EPA) expires, limitation of the engine power with continuous starting is activated.
Note: A warning message on the display (1) or (2) is displayed according to the type of the tractor.
S15N046
If the serious error is not eliminated, the second phase of the reduced engine power and engine revolutions
is performed. It is indicated to the tractor operator on the display of the instrument panel (1) or (2) together
with an acoustic signal and indication of signal lamps. After the transitional period of 10 h for Stage IV
(97/68/EC) or 2.5 h for Tier 4f (EPA) expires, limitation of the engine power with continuous starting is
activated.
Note: A warning message on the display (1) or (2) is displayed according to the type of the tractor.
stage 1 reduction of power by 25%
stage 2 reduction of power by 50% and limitation of
max. engine revolutions to ca. 1,250 rpm
SYSTEM OF ADDITIONAL TREATMENT OF EXHAUST GASES
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