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Plenty of power...
and more in reserve
All models featured in this brochure are powered by AGCO SISU
POWER, Tier lll emissions compliant engines, featuring common
rail fuel injection and 4-valve cylinder head design. They deliver
high power and torque and work in perfect harmony with the highly
efficient Dyna-6 and Dyna-VT transmissions to give superb field
and transport capabilities, with excellent fuel economy.
More usable power
Engine speed control
All of the engines have significantly
Switches mounted conveniently
more power at 2,000 rpm than at
on the right-hand console enable
2,200 rpm (rated engine speed).
two engine speeds to be pre-set
This 'power bulge' gives incredible
and memorised.
lugging ability to pull through
difficult conditions or to help
This enables one engine speed to
haul fully laden trailers on long,
be set for work and the other for
steep gradients.
use when turning at the headland.
Also, with an increased
The ability to return quickly and
constant power range of at
easily to precise engine speeds will
least 500 rpm, you can maintain
boost productivity, improve work
work rate at lower engine
quality and simplify operation in
speed, giving reduced noise
almost all of your daily tasks.
and fuel consumption.
Improved fuel economy
Advanced Electronic
Electronic engine management
Engine Management
constantly monitors a wide range
The Electronic Engine Management
of parameters and makes continual
system (EEM) controls not only
and incredibly fine adjustments to
the very precise common rail
fuel injection. Combined with four-
fuel injection, but also enables a
valve cylinder head design and
range of advanced engine control
Common Rail fuel injection, this has
functions, including Power Boost
given significant improvements in
and Engine Speed Control*.
both emissions and fuel economy.
Power boost
Whilst lowering the absolute
Due to sophisticated interaction
Specific Fuel Consumption (SFC)
between the engine and
figure is important, the graph (right)
transmission management
shows how the latest engines
systems, on MF 6400 models
achieve lower fuel consumption
when 3rd or 4th gear is selected
over a much wider range of
or when the PTO is engaged, EEM
operating conditions.
automatically gives a significant
power and torque 'boost'.
08
Power: MF 6485 - MF 6499
Specific Fuel Consumption
Common rail fuel injection
The common rail fuel injection
system uses precise electronic
control to continuously monitor
230
operating conditions and engine
220
load, and to regulate accordingly
210
the high-pressure fuel injection.
200
190
The result is faster response to
changes in field conditions and
engine load, more power and
torque over a wider engine speed
range, excellent fuel economy and
lower noise and emissions.
Four valves per cylinder
The cylinder head design features
two inlet valves and two exhaust
valves per cylinder enabling
the fuel injectors to be centrally
Torque: MF 6485 - MF 6499
positioned in the cylinder head.
This design improves fuel/air
mixture and gas flow, giving
optimum fuel combustion and
reducing emissions and fuel
consumption, whilst also improving
engine reliability by reducing upper
cylinder temperature. The more
efficient combustion also improves
torque characteristics throughout
the whole working range.
* Standard specifications vary by model
and market
High power, with power
increase as engine
B
speed falls between
B
2200 and 2000 rpm.
A
A:
Normal power curve.
B:
A
Power Boost, available
when PTO is engaged
or 3rd or 4th gear
are selected.
Compared to previous
generation engines,
MF's electronic
engine management
system broadens the
operating range within
which the tractor is
operating at optimum
fuel efficiency.
Optimum fuel
economy
Engine rev/min
The torque curve
shows how 'pulling
power' is maintained
B
B
as engine speed falls
A
and how it increases
with boost.
A:
A
Normal torque curve.
Torque reserve
Torque reserve
B:
Extra torque, available
when PTO is engaged
or 3rd or 4th gear are
selected.
'A/B' memorise the engine speed,
'+/-' adjust the memorised speeds (A/B)
01
09
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