Operation No. 6 - Inspection Of Connections; Operation No. 7 - Inspection Of Braking System Action - PRONAR T740 Manual

5.2.6 OPERATION NO. 6 - INSPECTION OF CONNECTIONS

Required service actions
•
Check technical condition of bodies of pneumatic, hydraulic and electrical
connectors.
•
Check electric contacts.
•
Check condition of pneumatic connector seals, check condition of safety covers.
Damage including cracking of body, burnt or broken electrical contacts, damage thread
classifies contact for replacement. In the event of damage to or seal of pneumatic connector,
these elements must be replaced with new reliable elements. Contact of pneumatic
connector seals with oils, grease, petrol etc. may cause damage and accelerate ageing
process.
If the trans-shipment trailer is unhitched from the tractor, contact should be protected by
cover or placed in its designated socket.
Each time before connection of the machine inspect technical condition and cleanness of
contacts and sockets in tractor.
Inspection of trans-shipment trailer connections:
•
DANGER
Unreliable and dirty trans-shipment trailer connections may cause unreliability and faulty
functioning of braking, electric or hydraulic system.
5.2.7 OPERATION NO. 7 – INSPECTION OF BRAKING SYSTEM ACTION
After correct hitching of trans-shipment trailer to tractor and starting engine, compressed air
is transferred to braking system. If air pressure is too low trailer brakes will not be released
and operator must wait until pressure reaches at least 5.8 bar.
After moving off, inspect braking by pressing tractor brake pedal. If trailer wheels brake
simultaneously on hard and level surface, the machine will not have a tendency to slide
daily.
5.11