Reduction Of The Engine Power And Engine Revolutions - Zetor FORTERRA HSX 120 Operator's Manual

SYSTEM OF ADDITIONAL TREATMENT OF EXHAUST GASES

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.
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
A serious error can be caused by unauthorised interference in the system of treatment of
exhaust gases!
Approaching first stage of reduction of engine power and speed is signaled to the tractor operator on the
instrument panel display (1) or (2) together with an acoustic signal and warning indicator lights. After the
transition period, see Stage V table (1628/2016/EU) or 1.5 hour for Tier 4f (EPA) a smooth-start engine
power reduction is triggered.
Note: The warning on the display (1) or (2) is shown according to the tractor type.
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