Claas ARES 546 Use And Maintenance Download

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ARES 506-606 - 02.2005 - GB

D.6

OPERATION

GENERAL

The engine of your tractor has been specifically designed for
agricultural use. It meets the Tier II standard. Follow a few
simple rules and you will get optimum performance from your
engine.

RUNNING-IN

The first 100 hours of operation are important since, to a large
extent, they determine the future life of the engine.
Recommendations:

1 - Avoid working in under load or long periods at idling

speed in the first 100 hours.

2 - Avoid working in over load using too high a gearbox ratio

and an engine speed of around 1600 to 1800 rpm.
(accelerator at maximum). This causes mechanical and
thermal stress which is harmful during the running-in
period.

3 - Take particular care with the fluid levels (oil and cooling

liquid) and always watch the engine temperature.

OPERATING TEMPERATURE

The engine is designed to operate at maximum torque.
However, do not demand maximum power from the engine
until it has reached its operating temperature. To do this,
always allow it to run at half-speed for 10 minutes before
using it.
If during operation the indicated temperature enters the red
zone, stop working. Carry out the checks indicated in
chapter "L".

OPERATING RPM

Idle rpm is not an ideal speed for engine operation. You
should therefore stop the engine when the tractor is not being
used.
The maximum off load rpm is reached when the accelerator
pedal is at its maximum position, transmission in neutral.
Running the engine at this speed when the tractor is
stationary is not recommended, especially when the engine is
cold.

OPERATING AT INTERMEDIATE POWER

If when working at full throttle, you notice that engine speed is
constantly above maximum power rpm and not varying much,
this means that the engine is "underloaded". In this case, you
can work in more economical conditions by engaging a higher
gear ratio and reducing the engine speed (accelerator in
median position) or by activating the Quadrishift II or
Quadractiv functions.
If you are working with the power take-off, it is also possible,
if the load is partial,to use the power take-off in economical
mode (540 rpm economical): In this case match the engine
speed to the normalized speed of the economical power
take-off.

FULL POWER OPERATION

Having chosen the correct gear ratio (according to the
implement and the work to be carried out), place the
accelerator lever in maximum position. Under these
conditions engine speed should be close to maximum power
speed.
If power demand reduces for a short time, engine rpm rises to
between maximum power speed and the maximum off load
speed.
If power demand increases for a short time, the engine can
easily cope with the overload up to its maximum torque limit.
If the engine is too often at a rev speed close to maximum
torque, reduce the gear ratio so that the engine returns to a
speed close to the maximum power or activate the
Quadrishift II or Quadractiv functions. The increase in engine
speed compensates for the reduction in the mechanical ratio,
and the working speed is increased.

SPECIFIC CONSUMPTION

This is the fuel consumed when developing 1 kW for 1 hour.
The consumption is expressed in grams (a litre of diesel fuel
weighs about 850 grams).

So as not to exceed the maximum on road
speed of 40 km/h, choose an appropriate
speed ratio.