SK597-AT4
Driving
Truck
SPIERINGS MOBILE CRANES USER MANUAL V 1.2
4-33
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Disable engine speed control
Disable the
engine speed control
can be done as follows:
1. By turning the end of the control lever to
position OFF
(direction D)
Picture 4-12, point 1
);
2. By operating the accelerator.
Conditions of which the
engine speed control
enables/disables are shown in
Result
Enables engine
speed control
Prevents
enabling engine
speed control
Disables engine
speed control
O
p
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ra
te
d
Right control lever to + or - (
A
or
B
)
X
X
After pressing
RES (C)
X
X
Right control lever to position
OFF (D)
X
X
Speed out of range (> 0)
X
X
When using service brake
X
X
When using engine brake
X
X
4.11.
Uphill and downhill driving
If the accelerator is released (by a possible traffic situation) while uphill or downhill driving,
it may occur that the automatic gearbox will switch down to an acceleration gear.
Shortly before the vehicle stops, the gearbox will automatically disengage the gear ratio.
This can cause the vehicle to move backwards or to speed up.
If the accelerator is operated again, it will not directly result in pulling capacity because first the
coupling must be engaged.
•
Use the
service brake
while uphill driving (after opening the coupling);
•
While uphill driving, beware of the reduction of the braking power:
-
In this situation operate the service break to a greater extent;
•
While uphill driving, beware of a possible reduced and delayed pulling capacity.
CAUTION!
While uphill or downhill driving, beware of the automatic coupling, which can be
opened unexpectedly.
Table
4-4
