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Pronar T669
Extent of activity
Immobilise trailer with parking brake.
Place wheel chocks under trailer wheels.
Unscrew drawbar eye (1) and remove from faceplate (2).
Set the drawbar eye in its new position and tighten with bolts (3) using
appropriate torque.
5.14 TROUBLESHOOTING
TAB. 5.8
Troubleshooting
FAULT
Problem with moving off
Noise in axle hubs
The faceplate (2) allows 4 possible drawbar eye positions, figure
(5.16).
To prevent premature wear of the ball drawbar make sure it is
positioned horizontally at the tractor hitch point.
CAUSE
Brake system pneumatic
conduits not connected
Applied parking brake
Damaged pneumatic
system connection conduits
Leaking connections
Damage control valve or
brake force regulator
Excessive slack in bearings
Damaged bearing
Damaged hub parts
Connect brake conduits (applies
to pneumatic systems).
Release parking brake.
Replace.
Tighten, replace washers or seal
set, replace conduits.
Check valve, repair or replace.
Check slack and regulate if
needed.
Replace bearings.
Replace.
5.42
SECTION 5
REMEDY
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