Amazone UF 1002, Руководство по эксплуатации

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Cleaning, maintenance and repairs
202 UF02 BAG00225.3 09.22
14.9.3 Checking and replacing the suction and pressure-side valves

Pay attention to the respective installation positions of the valves
on the suction and pressure sides before removing the valve
groups (5).

When reassembling, ensure that the valve guide (9) is not dam-
aged. Damage may cause the valves to jam.

Always tighten the screws (1) in a crosswise fashion using the
specified torque. Improper tightening of the screws causes warp-
ing, which results in leaks.
1. If necessary, remove the pump.
2. Remove the nuts (1,2).
3. Remove the suction and pressure port (3 and 4).
4. Remove the valve groups (5).
5. Check the valve seat (6), valve (7), valve spring (/8) and valve
guide (9) for wear or damage.
6. Remove the O-ring (10).
7. Replace defective parts.
8. After testing and cleaning, fit the valve groups (5).
9. Insert new O-rings (10).
10. Mount the suction (3) and pressure port (4) on the pump hous-
ing.
11. Tighten the nuts (1,2) in a crosswise fashion using a torque of 25
Nm (BP 160-185) / 20 Nm (AR 250-280) .