Troubleshooting - PRONAR T683 Operator's Manual

SECTION 5

5.13 TROUBLESHOOTING

TAB. 5.7 Troubleshooting
FAULT
Brake system pneumatic
conduits not connected
Applied parking brake
Damaged pneumatic system
Problem with
connection conduits
moving off
Leaking connections
Damaged control valve or
brake force regulator
Excessive slack in bearings
Noise in axle
Damaged bearing
hubs
Damaged hub parts
Poor reliability
Insufficient pressure in
of braking
system
system
Incorrect main or parking
Excessive
brake adjustment
heating of axle
hubs
Worn brake linings
Incorrect
Improper hydraulic oil
hydraulic
viscosity
system
CAUSE
5.35
REMEDY
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 bearing
Replace
Check pressure on tractor pressure gauge,
wait till compressor fills tank to required
pressure.
Damaged air compressor in tractor Repair
or replace.
Damaged brake valve in tractor. Repair or
replace.
Leaking system lines or connections.
Check system for tightness.
Regulate setting of expander arms
Change brake shoes
Check oil quality, make sure that the oil in
both machines is of the same type. If
necessary change oil in tractor or in trailer
Pronar T683