English
28
How is the drive engaged?
The hydrostatic drive uses a belt transmission. The belt must be engaged in order to activate
the hydrostat and provide power to the tracks. The belt drive can be engaged by pressing the
dead man’s handle.
Caution:
In order to avoid the machine moving unexpectedly when depressing the dead
man’s handle, check that the AIO control handle is in the neutral position and not
in the cruise control position.
Which transport characteristic will be selected?
The machine can be relocated in work mode or in transport mode.
A. In
transport
mode, the operator wishes to move the snow clearer across larger distances
or between two work zones. The main aim here is to move quickly and not lose functional
time. The snow cutter will, therefore, be disengaged and the cutter head will be raised so
that it no longer touches the ground or snow. This provides all of the power to the drive
generator and means that the cutter head will no longer impact upon the movement free-
dom of the machine.
B. In
work
mode, the aim is to clear snow. It is thus important to achieve optimum clearance
performance; the task is thus to adjust drive speed to the machine’s clearance capacity.
This is variable and depends on the height of the mass of snow, the density and compo-
sition of the snow and the grip and evenness of the ground. Moving in work mode will
therefore be slow and restrained.
How is the machine steered?
The Joystick can be pushed in any direction. Each movement, however, is mechanically
translated into a setting on the hydrostatic pump regulator (forwards/backwards) and power
(or not) to the hydraulic brakes (left/right):
1. AIO Joystick is moved forward – the tracks move forward and the machine moves forward.
The further the Joystick is moved forward, the quicker the machine moves.
2. AIO Joystick is moved backwards – the tracks move backwards and the machine reverses.
The movement speed will depend on the extent to which the Joystick is moved backwards.
3. If the AIO Joystick is moved to the left, the right track will be driven faster and the left will
be driven slower. This speed difference will result in the machine turning to the left. The
more intense the Joystick movement to the left, the greater the speed difference on the
two tracks and the further the machine will turn. A certain, sideways Joystick position will
cause the left track to come to halt and leave only the right hand track moving; this will
lead to the machine turning around the static track. If the Joystick if moved still further