Challenger Techstar CVT MT525B Series, Operators Instruction Book

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4 . MAINTENANCE AND ADJUSTMENTS
4.6 Challenger MT500B EU
3. The left-hand lever (PowerShuttle) must be in neutral
position (Fig. 3). Start the engine and release the clutch
pedal.
4.2.2 - Cold weather starting
Fig. 4: A 1000 W heater and connection cable are fitted to
help cold weather starting. The heater operates with 110 or
220V (depending on option) and in general heats the engine
coolant in two hours. In extreme cold, it may be required to
operate all night.
WARNING: DO NOT plug in heating element
for testing unless immersed in coolant. It is
dangerous to switch on a heating element in
the open air, as the heat released can cause
injury and the element can explode.
4.3 - STOPPING THE ENGINE
Reduce the engine speed to idling for a few seconds, then
turn the ignition key to the "Stop" position.
IMPORTANT: Do not stop the turbocharger engine sud-
denly when the engine is running at high speeds,
because the turbine will continue turning on its own but
will no longer be lubricated. Slow the engine before
stopping it.
Move the PTO knob to neutral position before starting
the tractor.
4.4 - DRIVING THE TRACTOR
4.4.1 - Foot throttle
The use of the foot throttle makes it possible to exceed the
engine speed set by the hand throttle. When the foot throt-
tle pedal is released, the engine speed returns to that set
by the hand throttle.
CAUTION: When using the foot throttle, the
hand throttle should be placed in the idle
position.
Do not keep your foot on the clutch pedal, or maintain
it at mid-travel.
Always descend slopes with the tractor in gear and the
clutch engaged.
When turning on headlands with heavy, mounted
implements, reduce engine speeds. If the engine is not
running steering is not power assisted.
4.4.2 - Selecting the correct gear ratio
Fig. 6. Select the ratio which gives the optimum fuel con-
sumption without overloading the engine and the transmis-
sion. Bear in mind at the same time that soil conditions can
vary within a matter of a few yards in the same field. Select
a ratio which allows the engine to operate comfortably at
about 75% of its maximum power.
4.4.3 - Preselecting A / B memorised engine speeds
Fig. 5 - This function allows the operator to continuously
choose between two engine speeds stabilised according
to the adjustments selected.
Memorising engine speeds
1. Select the required speed using the foot or hand throt-
tle:
Keep the memory button (A or B) (
13
) pressed down
for 1 to 2 seconds. The speed is memorised and acti-
vated. The operation is the same for both memories (A
and B), and the speed remains memorised even if the
ignition is switched off.
2. No speed must be selected:
Keep the memory button (A or B) pressed down, do
not release it, and the speed increases gradually;
release the button when the selected speed is
reached and the speed is memorised and activated.
Z2-078
Fig. 3
Fig. 4
CE- 011-01-