Parking Brake - PRONAR T680 Operator's Manual

SECTION 2
feeder's hydraulic valve (3) – figure (3.12). Check the auger's rotation direction. If necessary,
confirm that hydraulic conduits are connected correctly.
TIP
The hydraulic system of the feeder is filled with L-HL32 Lotos hydraulic oil.
DANGER
Pay special attention to overhead electric power lines when operating the feeder.

3.2.7 PARKING BRAKE

The parking brake is used to immobilise and prevent the trailer from moving while standing
motionless.
Brake crank mechanism (2) is welded to the left longitudinal member of the lower frame. Wire
cable (3), running through a cable roller (5), connects the crank mechanism to the brake
pulley block (6). The pulley block is connected to the expander levers of the rear axle (1) by
means of wire cable (4) routed through arms (7). Tightening the cables (turning the crank
clockwise) causes tilting of the expander lever, which parts the jaws of the brake shoes
immobilising the trailer. While releasing the brake, the return movement of the lever is
assisted by springs (8).
3.19
Pronar T680