Zetor CRYSTAL Series, Operator'S Manual

Page: 67 / 182

Limitation of the engine power and engine revolutions
If there is a serious error of SCR 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.
Indication of amount of urea in the tank
Long-term shutdown of tractor
During a long-term shutdown of the tractor, the urea filling must be drained from the tank.
Before operating the tractor, the urea tank must be filled with a new filling again and the urea filter element
must be replaced.
The urea filling should not stay in the tank longer than four month; then it should be replaced.
Repairs and maintenance of the system of additional treatment of exhaust gases
All repairs and maintenance of the system of additional treatment of exhaust gases must
always be performed by a professional service All interventions in the system, except authorised
service, are prohibited.
stage 1 Reduction of engine power by 20%
stage 2 Reduction of engine power by 20%
Reduction of engine revolutions to 1,200 rpm
The amount of urea in the tank is displayed on the
corresponding main screen in percentage of the urea tank
volume.
Small amount of urea in the tank is indicated with urea
signal lamp (1), defect signal lamp (2), acoustic signal and
reduced engine power output and revolutions.
C15N124
amount of urea
in the tank
urea signal
lamp
defect
signal
lamp
acoustic
signal
limitation of the
engine power and
engine
revolutions
less than 15% glows
less than 10% flashes
(0.5 Hz)
less than 5% flashes
(0.5 Hz)
glows yes
less than 5% flashes
(1 Hz) glows yes reduction of
power by 20%
0% flashes
(2 Hz)
glows yes reduction of
power by 20%
reduction of
engine
revolutions to
1,200 rpm
SYSTEM OF ADDITIONAL TREATMENT OF EXHAUST GASES
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