Adjustment Of Mechanical Brakes - PRONAR PT512 Operator's Manual

Pronar PT512
TIP
Tire pressure values are specified on information decal which is placed on wheel or on
upper frame above the trailer wheel.
DANGER
Damaged tires or wheels may cause the serious accident.
While checking the pressure, pay attention to technical condition of wheels and tires. Look
carefully at tire sides and check the condition of tread.
In case of a mechanical damage consult the nearest tire service and check whether the
defect requires replacement of the tire.
Wheels should be inspected with regard to distortion, breaking of material, breaking of welds,
corrosion, especially in the area of welds and contact with tire.
Appropriate technical condition and appropriate maintenance significantly extends the life of
these components and ensures appropriate level of safety to trailer users.
Control of pressure and inspection of steel wheels should be performed:
5.2.7

ADJUSTMENT OF MECHANICAL BRAKES

During use of the trailer friction linings of brake drums are subject to wear. Piston stroke is
extended and when the limit value is exceeded, braking force is decreased.
Adjustment should be performed when:
• a piston stroke is equal to 2/3 of maximum stroke,
• levers of brake expanders are not in parallel to each other during braking,
• braking system has been repaired.
• every 1 month of use,
• if needed.
5.10
CHAPTER 5