PRONAR T679/3, Руководство оператора, Страница: 88 / 117

PRONAR T679/3 PRONAR T679/4 SECTION 5
5.14
a new one. When installing the brake cylinder, maintain its original position
with regard to bracket (6).
Dismantle the expansion ring securing the expander arm.
Shift the expander arm to align the marked expander arm opening with the
cylinder fork opening.
During adjustment, membrane (2) must rest on the rear wall of the
brake cylinder – compare figure (5.8).
Install the brake cylinder fork pin and washers and secure the pin with cotter
pins.
Repeat the adjustment activities for the second half axle.
Engage the brake.
Remove previous marks and measure the brake cylinder rod stroke again.
If the brake cylinder rod stroke is outside the proper operating range, repeat
the adjustment.
TABLE 5.2 Position of pin in expander arm
TRAILER MODEL FRONT HALF AXLES REAR HALF AXLES
T679/3 (L1) 175 175
T679/4 (L2) 150 150
The hydraulic braking system adjustment is performed in the same way by marking the
extension of hydraulic cylinder rod (3) – figure (5.9).
TABLE 5.3 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