Troubleshooting - PRONAR T663/4 Operator's Manual

SECTION 5

5.13 TROUBLESHOOTING

TABLE 5.8 Troubleshooting
FAULT
Problem with moving off
Noise in axle hubs
Poor reliability of braking
system
Excessive heating of axle
hubs
Incorrect hydraulic
system operation
CAUSE
Brake system conduits not
connected
Applied parking brake
Damaged pneumatic
system connection conduits
Leaking connections
Damaged control valve or
brake force regulator
Excessive bearing
slackness
Damaged bearing
Damaged hub parts
Insufficient pressure in
system
Incorrect main or parking
brake adjustment
Worn brake linings
Improper hydraulic oil
viscosity
5.39
Pronar T663/4 T663/4 SILO
REMEDY
Connect brake conduits (applies
to pneumatic systems)
Release parking brake.
Replace.
Tighten, replace washers or seal
sets, replace conduits.
Check valve, repair or replace.
Check slackness and adjust 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 conduits 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