Pneumatic System - PRONAR T700 Operator's Manual

Pronar T700
• cleaning drain valve,
• cleaning and maintaining pneumatic line connections,
• replacement of the pneumatic line.
DANGER
Do NOT use the trailer when brake system is unreliable.
5.3.2 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
rear 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.
Repeat system check with depressed tractor brake pedal.
In the event of the appearance of leaks, compressed air will reach places of damage on the
exterior, with a characteristic hiss. Lack of system tightness may be exposed by covering
checked elements with washing fluid or other foaming preparations, which will not react
aggressively with system components. Damaged components should be replaced or
repaired. If leaks appear at connections then tighten the connections. If air continues to
escape replace connection component or seal.
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.
Give particular attention to line connections and brake cylinders.
The help of a second person is required.
5.18
SECTION 5