Zetor UTILIX HT Series, Operator'S Manual, Page: 58 / 154

Parking brake lever
Important: Traveling with the parking brake on will damage the brakes.
To avoid personal unjury:
z
When leaving the tractor, make sure that you have applied the parking brake and switched off the
engine.
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When using the brakes:
- To use the tractor, make sure that the parking brake is released. Improper use of the brakes can
damage the transmission.
Air brakes of trailers and semi-trailers
The control of the air brakes of trailers (semi-trailers) and the control of the tractor brakes is designed in such
a way that the braking effect of both vehicles is synchronized.
Air pressure indication
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.
With the connected brake pedals depressed, lift the
parking brake lever (1) upwards and release the brake
pedals.
The parking brake lever remains lifted and the brake
pedals are depressed. This brakes the tractor.
To unbrake the tractor, depress the brake pedals, the
parking brake lever (1) shall move to the lower position
and the brake pedals shall return to the upper position
when released. This unbrakes the tractor.
U18NN022_1
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.
UCL18NN016
CONTROLS, INSTRUMENTS & OPERATIONS
57