PRONAR PT512, Operator'S Manual

Page: 118 / 139

Pronar PT512 CHAPTER 5
5.22
Uninstall Tekalan lines and all connectors from control valve (1) and relay
valve (2).
Screw appropriate plugs (7) and (8) in place of dismounted connectors in
control valve (1) and relay valve (2).
Valve sockets to which plugs should be screwed are designed by
number 4.
Front line connector (red) (9) should be replaced with black connector.
Read line connector (red) (10) should be replaced with black connector.
Drill 9 mm dia. hole in connector latch for proper attachment of front line
connector (black).
Checking the trailer connectors:
•
every time when the trailer is to hitched to a tractor or when the second
trailer is to be connected.
5.3.8 REPLACEMENT OF PNEUMATIC LINE
Only permanently deformed, cut or worn pneumatic lines should be
replaced.
Scope of maintenance:
Reduce pressure in the system.
Reduction of pressure is achieved by tilting the drain valve stem.
Unscrew the nut (2) and uninstall the pneumatic line.
Install new line.
Inside of the line should be clean.
Ends of line (1) should be cut exactly at right angle.
Cutting ring (3) should be installed according to figure (5.10).
Line reinforcing sleeve (4) should be fully pushed in.
Inspect tightness of connectors according to chapter (5.3.2).