Operating instructions
64 Gear shifting
Safety functions during gear shifting
The machine features safety functions which protect the engine
and transmission via the electronic control unit of the
transmission in the event of an operator error.
These functions are:
– The engine can only be started with the gear selector in the
neutral position (N position).
– The gear selector may be moved from the N position to different
gear positions, but no gear will be engaged if the engine speed
exceeds 18.3 r/s (1,100 rpm) (stationary machine). If the
engine speed is above 1100 rpm, it will be lowered
automatically to 1100 rpm before a gear is engaged.
– When the parking brake is applied, no gear will be engaged.
– When delayed stop has been connected it is not possible to
engage a gear (optional equipment).
If the gear selector is moved to the N position while operating:
– If the speed is above 7 km/h, the transmission will not shift from
the engaged gear.
– If the speed is below 7 km/h, the transmission shifts to Neutral.
If the gear selector is moved past the N position (change of
travelling direction while operating):
– If the speed is above 7 km/h the transmission will not shift from
the engaged gear.
– If the speed is between 2 km/h and 7 km/h the transmission will
shift into Neutral.
– If the speed is below 2 km/h and the engine speed is below
1100 rpm (18.3 r/s), a new gear may be selected.
Overspeed protection
Q If there is a risk of the engine overspeeding, an upshift is made
to the next higher gear, irrespective of the position of the gear
selector and the gear-shift inhibitor.
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