Engine Heating; Error Signalling; Indication Of The Limitation Of The Engine Power And Engine Revolutions - Zetor CRYSTAL Series Operator's Manual

Engine heating

Do further heating of the engine during the drive. The heating of the engine by lengthy idle run
or sharp increase in revolutions is harmful to the engine. If the temperature of coolant has not
reached 45°C, do not exceed the engine revolutions over 2000 rpm.

Error signalling

Errors arising during tractor operation are indicated by
switching the corresponding signal lamp, acoustic signal
and error message in the instrument panel display.
If the error is indicated, the signal lamp still glows, even
though the display is switched to the next display.
If the error is not eliminated or the indicated state has not
returned to a normal state:
the corresponding signal lamp glows
when the tractor is switched off, the key in the switch box
is moved to position I and then the engine is started, the
corresponding signal lamp is switched on again and the
error message runs through the display.
1 - The signal lamp of a serious defect of the system (red).
2 - The signal lamp of a less serious defect of the system
(orange).
3 - Operational protection signal lamp (blue).
4 - Gearbox malfunction signal lamp (dark red). It glows
together with any of the signal lamps indicating errors, as
long as the error relates to the gearbox or the system of
travelling clutches.
More information in chapter Instrument panel.

Indication of the limitation of the engine power and engine revolutions

If there is a serious error in control or auxiliary systems of
the engine, 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 indicated by glow of the
signal lamps (1) and (2) is performed.
stage 1 Reduction of engine power
by 20%
stage 2 Reduction of engine power
by 20%
Reduction of engine
revolutions to 1,200 rpm
DRIVING OPERATION
FH11N091
signal lamp (1)
glows
signal lamp (2)
glows
69
C15N111
C15N129