Parking Brake - PRONAR PT610 Operator's Manual

SECTION 3
Three-way valve (2) – figure (3.8)is used to activate these circuits. This valve's lever can be
placed in two positions:
• 1 - trailer's tipping circuit opened - circuit (A),
• 2 - second trailer's tipping circuit opened – circuit (B).
On the connection conduit, in the vicinity of plug (4), there is a decal (8) identifying the supply
conduit of the hydraulic tipping system.
ATTENTION
Cut-off valve (3) – figure (3.8) limits the tipping angle of the load box when tipped to the
sides and to the rear. The length of the control cable (6) controlling this valve is factory
adjusted by the Manufacturer and must not be changed when the trailer is used.
TIP
The hydraulic system of the trailer is filled with L-HL32 Lotos hydraulic oil.

3.2.5 PARKING BRAKE

The parking brake is used for immobilising trailer while standing motionless. Steel cable (3),
routed through guide rollers (5), is connected with expanded levers of rear axle (2). Brake
crank mechanism (1) is welded to the right longitudinal member of the lower frame side and
connected with pulley block (5) using cable (4) run through a cable roller (6). Tightening the
cables (turning the crank clockwise) causes tilting of the expander lever, which parts the jaws
of the brake shoes immobilising the trailer.
3.13
Pronar PT610