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- Upshifting in overrunning condition.
In the overrunning mode, the upshifting will be suppressed by accelerator pedal idling position,
if the speed of the vehicle on a downgrade should not be further increased.
- Downshifting in overrunning condition.
Downshifting in overrunning mode will be then carried out if the vehicle should be related.
If the vehicle will be stopped and is standing with running engine and engaged transmission, the
engine cannot be stalled. On a level and horizontal roadway it is possible that the vehicle begins
to crawl, because the engine is creating at idling speed a slight drag torque via the converter.
It is convenient to brake the vehicle at very stop securely in position with the parking brake. At
longer stops, the controller has to be shifted to the NEUTRAL POSITION.
At the start off, the parking brake has to be released. We know from experience that at a
converter transmission it might not immediately be noted to have forgotten this quite normal
operating step because a converter, due to its high ratio, can easily overcome the braking torque
of the parking brake.
Temperature increases in the converter oil as well as overheated brakes will be the consequences
to be find out later.
Neutral position of the selector switch at higher vehicle speed(above stepping speed) is not
admissible.
Either a suitable gear is to be shifted immediately, or vehicle must be stopped at once.
3
3
)
COLD START
At an oil temperature in the shifting circuit <-12。 C, the transmission must be warmed-up for some
minutes.
This must be carried out in neutral with an increased engine speed(about 1500min
Until this oil temperature is reached, the electronics remains in neutral, and the symbol of the cold
start phase will be indicated on the display.
Indication on the display:
After the indication on the display is extinguished, the full driving program can be utilized out of
" NEUTRAL".
4)
O
O
IL TEMPERATURE
The oil temperature in the transmission sump is in the electrohydraulic control unit.
The service temperature in the sump of 60。 -90。 C must not be exceeded.
By overstepping results by 105。 C notice "WS" on the display.
At a trouble-free unit and an adequate driving mode, a higher temperature will not occur.
The notice "WS" results at the display, the vehicle has to be stopped and controlled for external oil
loss and the engine must run with a speed of 1200-1500min
transmission.
-1
at NEUTRAL POSITION of the
3-47
-1
).
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