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Pronar T683
5.3 PNEUMATIC SYSTEM MAINTENANCE
PRELIMINARY INFORMATION
Work connected with the repair, change 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 include:
• inspecting and checking air tightness of system.
• cleaning the air filter (filters),
• draining water from air tank,
• cleaning drain valve,
• cleaning and maintaining pneumatic line connections,
DANGER
Do NOT use the trailer when brake system is unreliable.
5.3.1 INSPECTING AND CHECKING AIR TIGHTNESS OF PNEUMATIC SYSTEM.
Checking hydraulic system tightness
Hitch trailer to tractor.
Immobilise tractor and trailer with parking brake. Place chocks under trailer
wheel.
Start tractor in order to supplement air in trailer brake system tank.
Turn off tractor ignition.
Check system components by releasing brake pedal in tractor.
In single line systems air pressure should amount to approx. 5.8 bar.
In double line systems air pressure should amount to approx. 8 bar.
5.14
SECTION 5
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