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Pronar PT610
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.
Inspecting trailer connections:
5.3.7 REPLACEMENT OF PNEUMATIC CONDUIT
Pneumatic conduits should be replaced when permanently deformed, cut or frayed.
Required maintenance actions
Release all pressure from the system.
Remove the pneumatic conduit by loosening the nut (2).
Fit the new conduit.
• connection should be inspected every time before connecting trailer to
tractor or second trailer.
Reduction of pressure is achieved by tilting the drain valve mandrel.
The interior of the conduit should be clean.
The ends of the pneumatic conduit (1) must be cut exactly at right
angles.
Clamping ring (3) should be fitted according to figure (5.10).
5.22
SECTION 5
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