Differential Lock; Control Of The Front Driving Axle; Driving With The Front Driving Axle Engaged - Zetor PROXIMA POWER Z90 2012 Operator's Manual

DIFFERENTIAL LOCK

The differential lock is engaged by press-
ing of the switch, which returns to the
original position after being released.
The engagement of the differential lock
is indicated by the illuminated symbol on
the switch.
The differential lock is automatically dis-
engaged on pressing of the brake ped-
als.
Do not use the differential lock
when driving into a bend.
DRIVING OPERATION
G221
CONTROL OF THE FRONT DRIVING
AXLE
The front driving axle is "ON" in basic
position.
Engaged front driving axle is indicated by
the illuminated symbol on the switch.
It can be disengaged with the corre-
sponding switch on the dashboard.
a - Front driving axle "ON"
b - Front driving axle "OFF"
In case of a pressure drop in the
air pressure system of the tractor
the front driving axle is automati-
cally engaged.
78
E222
DRIVING WITH THE FRONT DRIVING
AXLE ENGAGED
Use the front driving axle in case
the rear wheels slip to increase the
traction of the tractor.
On a road and hard surface driving
with the front driving axle engaged
is acceptable up to the maximum
speed of 15 km/h (driving with the
front axle engaged causes in-
creased wear of the front tyres).
Permanent engagement of the front driv-
ing axle is permissible if an agricultural
machine or implement is attached to the
front of the tractor. This condition is men-
tioned in the operator's manual of the
corresponding machine.
The maximum allowable speed of these
sets is 15 km/h.
G223