UAZ UAZ-31512, Инструкция по эксплуатации

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69
Filtrate oil preliminarily using a filter with absorption trap not more
than 40
µ
m.
Oil filling capacity is 1.1 l .
Change oil and replace the filter in the oil reservoir every 100
000 km of run or every two years of service. Change oil also when
repairing or adjusting the steering mechanism.
Fill up the hydraulic steering booster as follows:
1. Uncouple the pitman arm drag link from the pitman arm
or hold wheels off the ground by means of a lifter.
2. Remove the oil reservoir cover, fill up oil until it would
appear over the filter gauze (not more than 5 mm).
3. Without starting the engine, turn the steering wheel or
steering mechanism output shaft from lock-to-lock position
until air bubbles cease to escape from the oil reservoir. Refill oil.
4. Start the engine simultaneously refilling oil.
Note.
Excessive foaming of oil in the reservoir indicates that air is
inside of the system. In this case, stop the engine and settle oil for 20
minutes minimum (until air bubbles cease to escape from oil). Check
connections of hoses to the hydraulic steering booster units for
tightness and eliminate untightness if required.
5. Run the engine for 15-20 s and bleed the hydraulic steering
booster by turning the steering wheel from lock-to-lock position
without holding it in extreme positions, three times in each direction.
6. Top up oil if required.
7. Place the reservoir cap and tighten the cap nut by hand.
8. Couple the pitman arm drag link, tighten and secure the
ball pin nut with a cotter.
Maintenance of the by-pass and safety valves. When the by-
pass and safety valves are dirty, wash them out. For this:
1. Screw out the stopper plug 9 (Fig. 66) over the inlet hole
of the pump.
2. Take out the spring 5 and the control valve core 1, and
place the stopper plug to prevent flowing out oil.
3. Unscrew the safety valve seat 6, take out the ball 4, the
guide 3 and the spring 2. Take out the ring 8 and the filter 7 from
the safety valve seat.
4. Wash the parts and blow them out with compressed air.
5. Carry out assembly in the reverse order. Keep cleanness
when assembling. When disassembling and assembling, do not