PRONAR T286 Operator's Manual page 130

Pronar T286
Turn off tractor engine and remove key from ignition.
Immobilise tractor with parking brake.
Make sure that the trailer's brakes are not engaged.
Secure the trailer with wheel chocks.
FIGURE 5.6 Principle of brake system adjustment
(1) brake cylinder piston, (2) brake cylinder membrane, (3) expander arm, (4) adjustment
bolt, (5) cylinder fork, (6) position of fork pin, (7) brake cylinder bracket, (A) mark on the brake
cylinder at brake release position, (B) mark on the brake cylinder at full braking position, (C)
position of arm at brake release position, (D) position of arm at full braking position
Make a line (A) on the brake cylinder piston (1) to indicate the position of the
maximum withdrawal of the brake cylinder piston when the trailer's brakes are
released.
5.14
SECTION 5