Specifications

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Section 4.5
Service Training
4.5.8 MODIFICATION OF ENGINE ACCELERATION
In special cases it may be necessary to adapt the operating characteristics of the engine to the service
conditions of the truck, e.g. very sensitive driving at creep speed without accelerating the engine, or
frequent hill starts with a load at high engine speed. Both possibilities can be adjusted as described below.
Starting characteristics Standard Fast Slow
Pedal stroke at the start of approx. 15 mm approx. 10 mm approx. 17 mm
engine acceleration
Pressure at control cylinder approx. 6 bar approx. 5 bar approx. 7 bar
at the start of acceleration
Modification of control cylinder — Remove Insert
1 mm shim 1 mm shim
from control in control
cylinder cylinder
Dp Y/Z at start of traction approx. 4 bar
wheel rotation
Low engine idle speed approx. 800 rpm approx. 820 rpm approx. 750 rpm
Adjustment of accelerator The adjustment range of the setscrew (3), at the
sensor accelerator sensor, for the start of wheel rotation is 180 °
in both directions.
Control characteristic of Acceleration just Acceleration well Acceleration after
engine acceleration before start of before start of start of wheel
wheel rotation. wheel rotation. rotation.
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