PRONAR T679/5, Operator'S Manual, Page: 87 / 116

SECTION 5 PRONAR T679/5
5.15
a new one. When installing the brake cylinder, maintain its original position
with regard to bracket (7).
Rotate adjustment bolt (4) to align the marked expander arm opening with the
brake cylinder fork opening.
During adjustment, membrane (2) must rest on the rear wall of the brake
cylinder – see figure (5.8).
Install the brake cylinder fork pin and washers and secure the pin with cotter
pins.
Rotate adjustment bolt (4) to the right until one or two clicking sounds are
heard in the expander arm regulating mechanism.
Repeat adjustment activities for the other brake cylinder on the same axle.
The hydraulic braking system adjustment is performed in the same way by marking the
extension of hydraulic cylinder rod (3) – figure (5.9).
TABLE 5.2 Operating data of hydraulic cylinder
NOMINAL CYLINDER
STROKE
L [mm]
MINIMUM CYLINDER
STROKE
L
MIN
[mm]
MAXIMUM CYLINDER
STROKE
L
MAX
[mm]
200 25 45
ATTENTION
The positions for fixing the brake cylinder in the bracket openings and the brake
cylinder pin in the expander arm are determined by the Manufacturer and must
not be changed.
Each time when dismantling the pin or brake cylinder, the original fixing position
should be marked.