Daf LF.book - Peterbilt Motors Company

Automatic Gearbox
Normal program
This program is chosen automatically when the vehicle contact has been turned off.
The warning lamp at the "MODE" key is not on.
This program allows the gearbox to shift gears as and when necessary so that
driving at higher speeds is possible. This may be advisable on unpaved terrain.
Economy program
The warning lamp at the "MODE" key is on.
This program will, in general, shift gears at somewhat lower engine speeds. This
results in more economical fuel consumption.
√ Shifting down
After selecting the "D" key and when the vehicle is driving, this key can be used to
keep the gearbox in a lower gear. The selected gear is shown in the display. The
gearbox will not shift up further until the "" or "D" key is pressed. The number of
gears that can be used will appear in the display.
Shifting up
This key is used to allow the gearbox to shift to a higher gear. This is however only
possible after having previously selected to stay in a low gear.
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