PRONAR T900, Operator'S Manual, Page: 110 / 153

Pronar T900 SECTION 5
5.14
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.
Engage the brake.
Remove previous marks and measure the brake cylinder piston rod stroke
again.
If the brake cylinder piston rod stroke is outside the proper operating range,
repeat the adjustment.
•
Before the period of intensive use.
•
Every 6 months.
•
After repair of braking system.
•
In case of uneven trailer wheel braking.
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.
5.3 PNEUMATIC SYSTEM MAINTENANCE
5.3.1 PRELIMINARY INFORMATION
Work connected with the repair, change or regeneration of system components (brake
cylinders, control valve, braking force regulator etc.) should be entrusted to specialist
establishments, having the appropriate technology and qualifications for this type of work.
The duties of the operator connected with the pneumatic system maintenance include: