PRONAR T663/1, Operator'S Manual

Page: 113 / 135

SECTION 5 Pronar T663/1 T663/1 SILO
5.19
Reduction of pressure in tank is achieved by tilting the drain valve
stem.
Unscrew valve.
Clean the valve, blow it with compressed air.
Change copper seal.
Screw in valve, fill tank with air and check tank tightness.
DANGER
Release air from the air tank before dismantling drain valve.
Cleaning the valve:
•
every 12 months (before winter period).
5.3.6 CLEANING AND MAINTAINING PNEUMATIC CONDUIT CONNECTIONS
AND PNEUMATIC SOCKETS
DANGER
Unreliable and dirty trailer connections may cause unreliability and faulty functioning of
braking system.
Damaged connection body or socket for connecting the second trailer should be replaced. In
the event of damage to cover or seal, change these elements for new reliable elements.
Contact of pneumatic connector seals with oils, grease, petrol etc. may cause damage and
accelerate ageing process.
If the trailer is unhitched from the tractor, connections should be protected by cover or placed
in their designated socket. Before the winter, it is recommended to preserve the seal with
special preparations (e.g. silicon grease for rubber elements).
Each time before hitching the machine, inspect technical condition and cleanness of
connectors and sockets in tractor. If necessary, clean or repair tractor sockets.