Checking Air Tightness And Visual Inspection Of Pneumatic System - PRONAR T663/1 Operator's Manual

SECTION 5
• cleaning drain valve,
• cleaning and maintaining pneumatic conduit connections,
5.3.2 CHECKING AIR TIGHTNESS AND VISUAL INSPECTION OF PNEUMATIC
SYSTEM
Checking air tightness of pneumatic system
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 engine.
Check system components by releasing brake pedal in tractor.
Repeat the system check with depressed tractor brake pedal.
Check system tightness:
In the event of the appearance of leaks, compressed air will escape at the places of damage,
with a characteristic hiss. Lack of system tightness may be detected by covering checked
elements with washing fluid or other foaming preparations, which will not react aggressively
with the system components. It is recommended to use preparations commercially available
designed to facilitate detecting air leaks. Damaged components should be replaced or
In single conduit systems air pressure should amount to approx. 5.8
bar.
In double conduit systems air pressure should amount to approx. 8
bar.
Pay particular attention to conduit connections and brake cylinders.
The help of a second person is required.
• after travelling the first 1,000 km,
• each time after making repairs or changing system components,
• annually.
5.15
Pronar T663/1 T663/1 SILO