PRONAR T682, Manual, Page: 105 / 131

SECTION 5 Pronar T682, Pronar T682
5.21
5.4.2 CLEAN THE DRAIN VALVES
DANGER
Release air from the air tank before dismantling drain valve.
Required maintenance
Completely reduce pressure in air tanks.
Reduction of pressure in the tanks can be achieved by tilting the stem
of drain valve.
Unscrew both valves.
Clean the valve and blow it with compressed air.
Change copper seals.
Screw valves in, fill tanks with air, check tightness.
INSPECT
•
Every 12 months (before winter).
5.4.3 CLEANING AND MAINTAINING PNEUMATIC CONDUIT
CONNECTIONS AND PNEUMATIC SOCKETS
DANGER
Unreliable and dirty trailer connections may cause unreliability and malfunction
of braking system.
Connection with damaged body should be replaced. In the event of damage to cover or seal,
change these elements for new reliable elements. Contact of pneumatic connection seals
with oils, grease, petrol etc. may cause damage and accelerate ageing process.