
190
Failure
Possible cause
Troubleshooting practice
Steering wheel
Unstable truck move-
ment,
Steer unfastening
Fasten the crankcase and steer
bracket retaining nuts
“Hard” steering wheel
Air or water in the system
(foam in the tank, cloudy oil)
Discharge air If the air is not dis-
charged, check tightening of all
hydraulic joints, replace the filter If
the above measures did not help,
change the oil.
The pump does not operate
with necessary capacity and pres-
sure
Check pump pressure
Steering shaft crankcase spline
joint is not flexible
Disassemble, clean and lubricate
Oil throwing from the oil
tank through the breather
Filter clogging
Replace the filter
Brake System
Minimal air pressure emer-
gency indicator is permanently
flashing (when the engine is
stopped)
No air due to compressor
failure, pressure controller fail-
ure, or pneumatic system leak-
age
Repair the compressor, replace
the pressure controller. Find air
leakage place and repair
Braking is not efficient
Piston seals or air-oil intensi-
fier insert seal are worn, herein
air is discharging from the air-
oil intensifier exhaust pipe,
when the brake pedal is pressed
Replace the seals
The brakes are stuck (are
not released)
There is no brake pedal free
travel
Adjust brake pedal free travel
Pressure controller is often
actuated
Compressed air leakage in
the system from the controller to
the safety valves unit
Fasten the joints, replace defec-
tive joint parts, pipelines
Storage Batteries
The storage battery does
not provide sufficient torque of
the engine crankshaft
Low battery
(below permissible level)
High voltage drop in stator
feeding circuit
Charge the battery and check al-
ternator and voltage regulator oper-
ability
Clean battery clips and clamps.
Lubricate them with jelly. Tighten
stator clamps fixation, if necessary.
Содержание 4320M
Страница 1: ...URAL 4320М TRUCK and its Modifications ...
Страница 34: ...33 Figure 17 Truck Ural 43206 0551 71 Figure 18 Truck Ural 43206 3111 79 Figure 19 Truck Ural 43206 3511 79 ...
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Страница 159: ...156 Figure 123 Engine Electronic Control Unit Wiring Scheme ...
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Страница 177: ...Figure 140 Installation of left and right side safety devices 171 ...
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