Interrupted Sound Signal; Dead Start Of The Tractor; Dead Start Of Tractor In Regular Operation - Automatic Dead Start Function; Dead Start By Means Of Automatic Dead Start Function - Zetor CRYSTAL Series Operator's Manual

Interrupted sound signal

If the speed of tractor is control by partial depression
of the clutch pedal with engine revolutions higher
than 1 200 rpm, there is an interrupted sound signal
and gearbox failure control is still lit. If this situation
occurs, fully depress the clutch pedal immediately to
stop or release the clutch pedal to the upper position
and wait until the sound signal goes silent and the
control of gearbox failure. Lower the engine
revolutions under 1 200 revolutions per minute and
then continue working with the tractor. If you do not
do it, 8 seconds later the interrupted acoustic signal
changes to uninterrupted signal.

Dead start of the tractor

If at dead start, engine revolutions are higher than 1400 rpm L gear of multiplier is automatically shifted, not
depending on the switch of multiplier pre-selection on dashboard being on or off.
If the multiplier pre-selection switch on the dashboard is on at dead start, L gear of multiplier is shifted
automatically independent on the number of engine revolutions at dead start (i.e. when the engine
revolutions are lower than 1400 rpm).
A very fast dead start can cause overloading of driving gear, increased fuel consumption,
excessive wear of tyres and damage to load. Use dead start on the 1
heavy trailer to the slope and in difficult terrain.

Dead start of tractor in regular operation - automatic dead start function

- Use the control of travel clutch by reversing lever under the steering wheel for dead start of the tractor.
- Select the slowliest L gear of torque multiplier for dead start of the tractor.
Note: When starting or stopping the engine of the tractor, the fastest gear H is always automatically shifted.
- If the road and reducing speeds shifting lever is shifted in the group of road speeds, shift the lowest gear
speed for tractor dead start with respect for operational conditions.
- Use the lowest possible engine revolutions for tractor´s dead start, such that there is no turn off. After the
switch of travel clutch, increase the engine revolutions according to your needs.

Dead start by means of automatic dead start function

Automatic dead start function is in the shift of reversing lever with engaged applicable gear followed by dead
start without using the clutch pedal or clutch control buttons.
1. Start the engine.
2. Shift appropriate gear for starting the engine.
3. Release the manual brake, if you are standing on a slope, brake the tractor by foot brake.
4. When shifting the reversing lever form neutral to the requested direction of tractor drive (forward or
backward), the tractor starts.
5. When you increase the engine revolutions simultaneously, release the foot brake.
When depressing the clutch pedal, the automatic dead start function is put off from operation.

Dead start of tractor in regular operation - clutch pedal

In regular operation use the clutch pedal only for stopping the tractor. For the need of delicate
inching, e.g. when connecting the tools or when manipulating with tractor in crammed spaces, if
even the reduced gears are not slow enough, use the clutch pedal only for short time.
It is forbidden to control the speed of tractor by partial depression of clutch pedal with engine
revolutions higher than 1200 rpm. Do not use the clutch pedal as a foot rest. There is a risk of limited
service life or failures of travel clutches.
DRIVING OPERATION
73
FH12N047
st
gear only when driving with