Air Brakes Of Trailers And Semi-Trailers; Warning Indication Of Air Pressure Drop; One-Hose And Two-Hose Brakes; One-Hose Brakes - Zetor Proxima GP Series Operator's Manual

Air brakes of trailers and semi-trailers

Air brakes of trailers (semi-trailers) and brakes of the
tractor are designed so that braking effects of both
vehicles are synchronised.
In case of a drop of pressure the transfer valve
disables the secondary consumers (differential lock,
disengagement of the front driving axle).
When driving with a trailer or semi-trailer the foot
brake pedals shall be coupled and secured by a latch!
With braking by one brake pedal the trailer air brakes
are not activated.

Warning indication of air pressure drop

Decrease of air pressure under 450 kPa is indicated by
a red lamp and red symbol of a tractor with a sign STOP
on the dashboard.
In case of a pressure drop in the compressed
air system under 450 kPa the tractor with braked
trailer or semi-trailer may not travel until air pressure
increases.

One-hose and two-hose brakes

1. clutch head of one-hose brakes
2. clutch heads of two-hose brakes
Clutch heads after disconnection or without
a connected trailer, articulated trailer must be closed
by a valve.

One-hose brakes

Valve is marked with a black colour.
Operating pressure is adjusted with the control valve at
600 ± 20 kPa.
When connecting the trailer (articulated trailer)
with a maximum allowed weight approved for the type
of tractor at stake is a maximum allowed speed of the
set of 30 km per hour! Maximum allowed speed of the
set is defined by maximum allowed speed of the
slower vehicle of the set.
DRIVING
61
C222
G226
P11NX227
P11NX228