UAZ HUNTER 315195, Руководство по эксплуатации

Страница: 93 / 136

93
CONTROL SYSTEMS
Steering system
During the turn of the steering wheels to the right, to the left
until it stops, noise in the hydraulic power steering may occur
as a result of the maximum pressure in the hydraulic pump.
This noise is a typical sign of the pump working, and it does
not influence the efficiency of the steering system.
Maintenance-free tie rod ends are mounted on the vehicle.
No adjustment or lubrication of the maintenance-free tie rod
ends is needed during the operation. The maintenance-free tied
rod ends with gaps need replacement.
Check the total steering wheel backlash at idle running of
the engine. The total backlash should not exceed 20°.
If the total backlash is higher than the permissible level,
the unit, which gives the increased play, should be detected.
Therefore, the following should be checked: proper tightening
(see Appendix 2) of the steering box bolts, condition of tie rod
joints, tightening of drive shaft joints, gaps in joints and spline
coupling of the steering column drive shaft, and gaps in the
steering mechanism.
If radial gap in the joint of the steering shaft is detected (axial
displacement of the crosspiece in bearings), punch the bearings in
yoke eyes, so that the bearing sleeve shall not become deformed.
If gaps in the spline couplings of the steering shaft are detected,
the shaft should be repaired or replaced.
The steering mechanism can be used only for a short time,
when the hydraulic power steering is out of order as a result
of pump damage, hose or pump drive belt failure or when the
vehicle is towed as a result of engine stoppage. If the hydraulic
power steering system lacks oil, the pump drive belt should be
removed, otherwise pump seizure or tearing of belt is possible.
Pay special attention to coolant temperature, when the pump
drive belt is removed, to avoid engine overheating.
long-term vehicle operation with non-working hydraulic power
steering can lead to the premature wear of the steering system.
Tension of hydraulic power steering pump drive belt see "Engine
Cooling System" section.
Replace the belt if damages or excessive stretch is detected.
Hydraulic Power Steering oil level Check and Change. To
check the oil level in oil tank, the position of the front wheels