PRONAR PT510, Operator'S Manual, Page: 104 / 133

Pronar PT510 SECTION 5
5.12
arms must be positioned in parallel with regard to each other at full braking. If this is not so,
adjust the position of the lever, which has the longer stroke.
TABLE 5.2 POSITION OF PIN IN EXPANDER ARMS
TYPE OF BRAKE SYSTEM
PIN POSITION FRONT
AXLE [mm] (C)
PIN POSITION REAR
AXLE [mm] (D)
Double line system
Double line ALB system
Hydraulic system
Single line system
150
150
150
150
175
175
175
175
5.2.8 REPLACEMENT OF PARKING BRAKE CABLE AND ADJUSTMENT OF
CABLE TENSION.
Proper operation of the parking brake is dependent on the effectiveness of the axle brake
and the correct brake cables tension.
Replacing the parking brake cable
Hitch trailer to tractor. Park trailer and tractor on level surface.
Place wheel chocks under trailer wheel.
Fully unscrew the bolt of the brake crank mechanism (1),
Dismantle shackles, remove pins of guide rollers (4),
Unlock and remove crank mechanism pin (1),
Loosen nuts of cable clamps (2).
Dismantle cable (3).
Lubricate parking brake mechanism (1) and pins of cable guide rollers (4).
Install a new cable.
Parking brake cable must be fitted carefully.
Thimbles and three clamps must be fitted at the ends of the cable.
Clamps must be tightened. The distances between the clamps may
not be less than 15 mm.