UAZ PATRIOT Operation Manual page 139

Hydraulic power steering oil: level check and change. To
check the oil level in oil tank 1 (Fig. 9.29) position the front
wheels straight. Pour the oil to the oil tank up to the level of
the filling strainer screen or no higher than 5 mm. Run the oil
through the filter with the maximum pour size of 40 mym in
advance.
Fill the system as follows:
1. Disconnect the drag link from the drop arm and lift the
front wheels with a jack.
2. Uncap the oil tank, pour the oil until it can be seen over
the filter screen (no higher than 5 mm).
3. Do not start the engine and turn the steering wheel or the
input shaft lock-to-lock until air bubbles stop coming out of the
oil tank. Add some more oil into the tank.
4. Start the engine and add the oil into the tank simultaneously.
Note. If the oil foams abundantly in the tank, which means
that air has entered into the system, stop the engine and let the
oil settle for no less than 20 min (until bubbles come out from
the oil). Inspect the connections between the hoses and the
power steering units and eliminate the leakage as required.
5. Let the engine run for 15-20 sec and bleed the power
steering system to bleed residual air from the steering mechanism
by turning the steering wheel lock-to-lock 3 times with no stops
in the end positions.
6. Add the oil into the tank as required.
7. Cover the tank and tighten the cap with your hand.
8. Connect the drag link, tighten (see Annex 2) and cotter
the ball stud nut.
Note. The motor vehicle can be equipped with the hydraulic
power steering, having the union which simplifies filling of the
system. The union is located on the cap of the drop arm shaft.
Before filling the system, open the union, put the one tube end
on the union and drop the other end into the vessel with oil (the
tube end should be dipped into the oil). After step 4 (filling) is
done, close the union.
WARNING! Please, remember, that the stopped engine and the
disabled vacuum booster increase the effort necessary for pushing
the brake pedal to stop the motor vehicle.
Brake systems
139