Air Pressure Indication; The Button For Temporary Deactivation Of Brakes Of The Trailer Or Semi-Trailer - Zetor HORTUS HS Series Operator's Manual

Air pressure indication

The air pressure in the trailer or semi-trailer air brakes is
indicated by an air pressure gauge located on the
instrument panel.
If the air pressure gauge needle is in the red field, the air
pressure in the trailer or semi-trailer air brake system is
low.
If the air pressure gauge needle is in the green field, the
value of the air pressure in the trailer or semi-trailer air
brake system is correct.
If the air pressure gauge needle is in the yellow field, the
air pressure in the trailer or semi-trailer air brake system is
high, this is a malfunction, contact a service immediately.
When driving a tractor with a trailer or semi-trailer with air
brakes, the air pressure gauge needle must be in the
green field.
If the pressure gauge needle of a tractor with attached trailer or semi-trailer with air brakes
drops into the red field, the tractor with trailer or semi-trailer with air brakes must not continue to
travel. It is necessary to stop the unit and wait until the air pressure increases and the pressure
gauge needle is within the green field of the pressure gauge.

The button for temporary deactivation of brakes of the trailer or semi-trailer

The temporary trailer or semi-trailer brake deactivation button (1) is located on the dashboard panel.
The button for temporary deactivation of brakes of the
trailer or semi-trailer can be used by the operator of the
tractor with the connected trailer or semi-trailer to make
sure that the effect of the parking braking system of the
tractor with the connected trailer or semi-trailer when the
tractor is braked with the hand brake is sufficient. If there
is a tractor with the connected trailer or semi-trailer which
is braked with the hand brake and the key in the switch
box is in the position (I), and we press the button for
temporary deactivation of brakes of the trailer or semi-
trailer, the trailer or semi-trailer is deactivated for the time
when the button is pressed (the trailer or semi-trailer does
not brake). When the button for temporary deactivation of
brakes of the trailer or semi-trailer is released, the brakes
of the trailer or semi-trailer are activated (the trailer or
semi-trailer brakes).
Prior to using the button for temporary deactivation of brakes of the trailer or semi-trailer, it is
always necessary to provide sufficient space in front of the tractor and behind the connected trailer
or semi-trailer where no obstacles or persons will be present for the case that the effect of the
parking braking will not be sufficient and the combination of vehicles moves.
Only the air brakes are deactivated by the button for temporary deactivation of brakes of the
trailer or semi-trailer.
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DESCRIPTION OF TRACTOR CONTROLS
UCL18NN016