PRONAR T669/1, Operator'S Manual, Page: 106 / 137

Pronar T669/1 SECTION 5
5.16
Loosen nuts (7) of cable clamps (5) of handbrake cable (2).
Tighten cable and tighten clamps.
Length of parking brake cable (2) should be so selected that at total
release of working and parking brake the cables would be loose and
hanging by 1 - 2 cm compared to fully tensioned cables.
Adjustment of parking brake cable tension should be conducted in the event of:
•
stretching of cable,
•
loosening of parking brake cable clamps
•
after adjustment of axle brakes,
•
after repairs to axle brake system,
•
after repairs in parking brake system.
Before commencing adjustment make certain that the main break is correctly regulated and
is functioning properly.
Checking and parking brake adjustment:
•
every 12 months,
•
if needed.
5.3 PNEUMATIC SYSTEM MAINTENANCE
5.3.1 PRELIMINARY INFORMATION
Work connected with the repair, change or regeneration of system components (brake
cylinders, lines, 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 include:
•
inspecting and checking air tightness of system.
•
cleaning the air filter (filters),
•
draining water from air tank,