PRONAR T669XL, Operator'S Manual, Page: 106 / 135

Pronar T669XL, Pronar T700XL SECTION 5
5.20
Length of parking brake cables 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/or adjustment of parking brake:
•
every 12 months,
•
if needed.
5.3 PNEUMATIC SYSTEM MAINTENANCE
5.3.1 PRELIMINARY INFORMATION
Work connected with repair, replacement or regeneration of system components (brake
cylinders, conduits, 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:
•
checking tightness and visual inspection of the system,
•
cleaning the air filter (filters),
•
draining water from air tank,
•
cleaning drain valve,
•
cleaning and maintaining pneumatic conduit connections,