Hydraulic Brakes Of Trailers; Connecting And Disconnecting Quick Couplings Of Trailer Hydraulic Brakes - Zetor FORTERRA HSX 120 Operator's Manual

HYDRAULIC BRAKES OF TRAILERS

Connect hydraulic brakes of trailer or articulated trailer to the quick couplings marked
by an arrow.
Control of hydraulic brakes of trailers (articulated trailers) and control of tractor brakes
is done so that the braking effect of both vehicles is synchronized. Working pressure
is derived by oil supplied by non-switched on/switched off gear pump of hydraulics.
Brake valve of the trailer is done by the pressure of brake fluid from main braking
rollers depending on the force effecting on the brake pedal. The pressure on clutch
head must be 12 - 15 MPa with maximum depression of brake pedal. Brake valve of
trailer prefers the function of brakes to the function of hydraulics.
If there are shocks when foot brake pedals are depressed in the pipeline of hydraulic
circuit, it is necessary to bleed the hose from the brake valve to the quick coupling.
When driving with connected trailer or articulated trailer, the pedals of foot
brake must be connected and secured by a valve!
When braking with one brake pedal, hydraulic brakes of the trailer are
not active.
DRIVING OPERATION
75
FH12N86
CONNECTING AND DISCONNECTING
QUICK COUPLINGS OF TRAILER
HYDRAULIC BRAKES
When connecting and disconnect-
ing quick couplings, take increased
care with regard for remaining oil
which remains in the socket or in
the plug of quick coupling.
For ecological reasons, it is nec-
essary to remove this remaining
oil after every disconnection of
quick couplings with any textile
material.