UAZ UAZ-220695, Руководство по эксплуатации

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the bearings), make additional thread crushing for the bearings in the eyelets of the yokes. The thread crushing should be
done in such a way as to prevent buckling of the bushing sleeve.
If there is a gap in the spline joints of the steering cardan shaft, replace the shaft.
Before installing the cardan shaft with bolts screwed into the yoke of the cardan-joint on the vehicle, apply
anaerobic sealant UG-6 or glue - sealant "Anacrol-20" on the threaded part of the bolts.
If gaps in the steering mechanism are detected, adjust the mechanism. Adjust at the UAZ service station.
Hydraulic power steering system. When the steering wheels are turned to the right and to the left up to the end
position, there may be a noise (roar) in the power steering system, resulting from the power steering pump reaching the
maximum pressure. This noise (roar) is a specific feature of the pump and does not affect the function of the steering.
If the hydraulic booster fails due to damage to the pump, destruction of the hose or pump drive belt, or when the
vehicle is towed due to an engine stop, the steering mechanism can only be used for a short time. In the absence of oil in
the power steering system, it is necessary to remove the pump drive belt, otherwise it is possible that the pump will be
locked and the belt is broken. With the pump drive belt removed, it is necessary to carefully monitor the coolant
temperature, as the engine may overheat.
Prolonged operation of the vehicle with the broken hydraulic booster leads to premature wear of the steering
mechanism.
The drive belt of power steering (Fig. 9.5) is tensioned by moving the pump along the engine mounting bracket.
To do this, loosen the bolts securing the pump to the bracket, move the pump with the tension bolt until the belt tension is
normal and tighten the pump bolts.
Replace the belt if it is damaged or overstretched.
Checking the level and changing the power steering oil. When checking the oil level in the oil tank 3 (Fig. 9.26),
the front wheels shall be set straight. Fill oil up to the level of the oil tank filter screen. Oil must be pre-filtered through a
filter with a filtering capacity of not more than 40 microns.
Fill the system in the following order:
1. Disconnect the bipod arm rod from the bipod or elevate the front wheels with a special lift.
2. Remove the oil filler cap, pour in oil up to the level of the filter screen.
3. Without starting the engine, turn the steering wheel or the input shaft of the mechanism from the stop to the stop
until the air bubbles leave the oil in the tank. Fill up the oil tank.
4. Start the engine while refilling the oil at the same time.
Note. If the oil is plentifully foaming, which indicates that air has entered the system, stop the engine and allow the
oil to stand for at least 20 minutes (until the bubbles leave the oil). Inspect the hose connections to the power steering
system units and, if necessary, repair leaks.
Fig.9.26 Engine compartment:
1 - engine cooling system radiator; 2 - engine; 3 - oil tank of power steering system
5. Let the engine run for 15 to 20 seconds and pump the power steering system to bleed any residual air from the
steering mechanism by turning the steering wheel from end to end without stopping in extreme positions, three times to
each side.
6. Check the oil level in the tank. Bring the oil level in the tank to the level of the filter screen. With the engine
warmed up (with oil in the booster system warmed up) it is admissible that the oil level in the tank will rise up to 7 mm
above the screen.
7. Close the tank with the cap and hand-tighten the cap nut.
8. Attach the bipod link, tighten (see Annex 2) and cotter pin nut.
Maintenance of the flow control and safety valve of the pump . If the flow and safety valves are dirty, flush them.
To do this:
1. Unscrew blind plug 9 (Fig. 9.27) located above the pump outlet.
2. Remove spring 5 and spool 1 of the flow valve, and replace the plug to prevent oil leakage.
3. Unscrew seat 6 of the safety valve, remove the ball 4, guide rail 3 and spring 2. Remove the ring 8 and filter 7
from the seat of the safety valve.
4. Rinse the parts and purge them with compressed air.