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SECTION 5
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
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 period it is recommended to preserve the seal
with special preparations (e.g. silicon grease for rubber elements).
Each time before connection of the machine inspect technical condition and cleanness of
contacts and sockets in tractor. If necessary clean or repair tractor socket.
Inspecting trailer connections:
5.3.7
REPLACEMENT OF THE PNEUMATIC CONDUIT
Pneumatic conduits should be replaced when permanently deformed, cut or frayed.
PART NAME
Pneumatic system fittings
• connection should be inspected every time before connecting trailer to
tractor or second trailer.
THREAD
M22x1.5
M14x1.5
M16x1.5
M18x1.5
M22x1.5
5.23
Pronar T683
TIGHTENING
TORQUE (NM)
24
30
35
36
40
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