Gearbox; Differential Gear - Agria 3900 Operating Instructions Manual

3. Devices and Operating Elements

Gearbox

Only change gears when the machine is not travelling and when it is
I
decoupled.
With the steering handle swivelled 180° (f or front attachment), the gear shifters
for transmission and PTO have changed sides
B/7
3
B/4
26 agria Two-Wheel Tractor 3900
34
Gearshifting
Gears are engaged via gear shifter
(B/7).
Between two gears there is a neutral
position.
The position of the shifter in the
transmission shift gate indicates the
gear selected.

Differential Gear

To improve traction in severe conditions,
differential gear can be locked with hand
lever (B/4). Keep the differential gear
locked only as long as it is necessary.
As the steering of the tractor is
I
easy, you should disengage the
differential lock when driving with a
trailer mounted (especially in curves).
Engaging differential lock
(rigid wheel shaft)
On the go:
Release the throttle
Move the hand lever for differential
lock (B/4) forward
Press the throttle accordingly
Disengaging differential lock
Move the hand lever (B/4) for diffe-
rential lock backward