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Pronar T400
torques for the most common bolted connections are shown in the table below. The given
values apply to non-lubricated steel bolts.
TIP
The hydraulic hoses should be tightened with a torque of 50 - 70 Nm.

5.15 TROUBLESHOOTING

Table 5.8
Faults and their removal methods
FAULT
Trouble with driving off
Noise in the hub of the
driving axle
CAUSE
Pneumatic braking system
lines are not connected
Pneumatic system
connection lines are
damaged
Connection leaks
The trailer is braked with
parking brake
Control valve or relay valve
is defective
Pressure in the brake
system is too low
Excessive bearings
clearance
5.46
REMOVAL METHOD
Connect the brake lines.
Replace the cables with new
ones.
Tighten, replace seals or sealing
sets.
Release the parking brake.
Check the valves. In the event of
damage to any of the elements,
repair or replace
Check the pressure on the
pressure gauge of the tractor, wait
for the compressor to fill the tank
to the required pressure.
Damaged tractor air compressor.
Repair or replace.
Damaged tractor pressure
regulator. Repair or replace.
System leakage.
Check clearance and adjust if
necessary.
CHAPTER 5

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