Mechanical Brakes Regulation - PRONAR T400 Operator's Manual

CHAPTER 5
Figure 5.4 Brake shoes inspection
(1) brake drum, (2) brake chamber wall, (3) control holes, (G) lining thickness
5.2.7

MECHANICAL BRAKES REGULATION

Significant lining wear increases the stroke of the brake cylinder piston and deteriorates
braking performance.
TIP
The correct stroke of the piston rod should be in the range of 25 - 45 mm.
When braking, the piston rod stroke should be within the specified working range, and the
angle between the piston rod (1) and the expander arm (3) should be approximately 90 ° -
compare figure (5.6).
The braking force also decreases when the angle of the piston rod of the brake cylinder (5) is
not correct - figure (5.5) in relation to the expander arm (1). To obtain the optimum
mechanical angle of operation, the cylinder fork (6) must be mounted on the expander arm
(1) in such way, that when fully braked, the angle of operation is approx. 90°.
5.11
Pronar T400