Mercedes S-Class W-220

1. Unscrew a ventilating cover 47 and uncover 45.
2. Unscrew a nut 61 from a basic bolt, remove the plastic plug 60, a spring 43 and the filter 41.

3. On the pumps Vickers/LUK the tank 35 can be removed. Replace a sealing ring. On the pumps ZF it is cast together with the case 2.

4. Unscrew bolts 25 and remove a flange 4. Check the lower part of a flange 4 on absence of damages and wear.

5. Remove a clamping plate 3 and a kulachkovy insert 6.

6. Remove a lock ring 18с a leading shaft 11. Replace a lock ring.

7. Remove a rotor 7 by means of a plastic hammer from a leading shaft 11 together with blades 16 (10 pieces).

8. Remove a leading shaft 11 from a flange 4.

9. By means of a screw-driver выпрессуйте a radial epiploon 13с a flange 4.

10. Remove a lock ring 34а or 34b. 34а — the Pump Vickers/LUK 34b — the Pump ZF

11. Take the valve of adjustment of a stream of liquid 32 and a spring 30 of the pump 2 case.

12. Fix the valve of adjustment of a stream of liquid 32 in a vice and turn out the valve 53 of the valve of superfluous pressure.

13. Remove a sealing cone 51 and a spring 50. Check contact surfaces of the valve of adjustment of a stream of liquid 32 and an opening in the pump case on lack of wear or damage. If wear of sealing surfaces is defined, it is necessary to replace the pump.
14. Check both sealing cones. Replace a worn-out cone.

1. Before the beginning of assembly oil all details. Replace all sealing rings. If the new valve adjustment of a stream of liquid 32 is established, pay attention to the correct pressure of opening of the valve of superfluous pressure.
2. Collect the valve of adjustment of a stream of liquid 32, having fixed it Е a vice and tighten the valve 53.
3. Insert a spring 30 and the valve of adjustment of a stream of liquid 32 into the pump 2 case.
4. Establish a lock ring 34а or 34b.

5. Establish a new epiploon in a flange by means of a drift.

6. Further installation is carried out as it should be, the return to removal.
7. After pump assembly, check correctness of operation of the pump and absence of leakages of liquid. If it is necessary, check working pressure of the pump.

1. Unscrew a ventilating cover 47 and uncover 45.
2. Unscrew a nut of 61 basic bolts 46. Remove the plastic plug 60, a spring 43 and the filter 41.

3. Unscrew bolts of the 36th case of the pump 2. Remove the tank 35 and a sealing ring 21.

4. Unscrew bolts 25 and remove a flange. Check a surface of a prileganiye of a flange on lack of wear and damage.

5. Remove a clamping plate 3.

6. Remove a kulachkovy insert 6. Check a surface of a prileganiye of a clamping plate, and also a surface of sliding of blades on a kulachkovy insert 6 on lack of wear and задиров.

7. Remove a lock ring 18 from a leading shaft. Replace a lock ring.

8. Remove a rotor 7 from a leading shaft 11с the help of a kiyanka and remove blades 16 (10 pieces). Check blades 16 in grooves of a rotor 7; they should slide in a rotor easily.

9. Remove persistent laying 5.

10. Turn out all four nuts 40 of the pump case by means of a key 010.

11. Check epiploons 39 and replace them if it is necessary. Take the piston 37 and a spring 38 of a stopper 40. Check the piston and directing the piston on lack of wear tracks and damages. If the piston moves in directing with appreciable difficulties, it is necessary to replace a stopper.

12. Beat out a finger 19 of the pump case by means of a drift.

13. Take a leading shaft 11 together with the plug 15b and a flange 14 of the pump case.

14. Remove the plug 15b and check it.

15. Beat out a finger 17 by means of a drift and remove the clown 15а. Remove persistent laying 12 and check its condition. Remove a flange 14 from a leading shaft 11.

16. By means of a screw-driver take a radial epiploon 13 from a flange. Replace a sealing ring 39а.

17. Check basic surfaces for bearings (arrow) on a leading shaft on lack of wear or задиров.

18. Check a radial epiploon 27 in the pump case. If on the pump liquid is found, the transmission of an epiploon 27 will be a probable cause.

19. Take a radial epiploon and laying 28 by means of a stripper. Check the bronze plug in the case 4 on lack of wear tracks and damages and if it is necessary, replace it.

20. Remove a lock ring 34а. At removal of a lock ring be convinced that the case of the pump is not damaged.

21. Take the valve of adjustment of a stream of liquid 32 and a spring 30 of the pump 2 case.

22. Fix the valve of adjustment of a stream of liquid 32 in a vice and turn out the valve 53 from the valve of superfluous pressure.

23. Remove a sealing cone 51 and a spring 50. Check contact surfaces of the valve of adjustment of a stream of liquid 32 and an opening in the pump case on lack of wear or damage. If wear of sealing surfaces is defined, it is necessary to replace the pump.
24. Check both sealing cones. Replace a worn-out cone.

1. Assembly is carried out as it should be, the return to removal.
2. After pump assembly, check correctness of operation of the pump and absence of leakages of liquid. If it is necessary, check working pressure of the pump.

1. The pump of the amplifier of a steering of the Tandem type is shown on an illustration.

2. Remove a sealing cone 51 and a spring 50.  Attention! On some models the tank 35 can fasten on an arm 1а, which in turn приворачивается to the pump 1.

7. Unscrew a nut 35е from a basic bolt 35i. Remove the plastic plug 35f, a spring 35g and the filter 35h.

8. Unscrew bolts 4b on a flange 4 and remove the pump 2 case.

9. Remove a sealing ring 4h from a flange 4, check and replace it if it is necessary. Remove a clamping plate 8. Check an epiploon 8а and konusny laying 8b and replace an epiploon if it is necessary.

10. Remove a kulachkovy insert 6 and fingers 6а. Check a surface of a clamping plate, and also a surface of sliding of blades on a kulachkovy insert on lack of wear or damages.

11. Remove a lock ring 11а from a leading shaft 11. Replace a lock ring.

12. Remove a rotor 7 from a leading shaft 11 by means of a plastic hammer and remove all blades 7а (10 pieces).
13. On the pump ZF: take a leading shaft 11 of a flange 4. On the pumps Vickers/LUK: at first remove 10 blades, and then remove a leading shaft with a flange cover.

14. Check a leading shaft on absence задиров and wear on surfaces under bearings (shooter). If it is necessary, replace it.

15. Unscrew bolts 4с (8 pieces) and uncover a flange 4а. Check a radial epiploon 4d and replace it if it is necessary.

16. Replace a sealing ring 5а. On the pump ZF: remove the plug 5f and the bearing 5g. On the pumps Vickers/LUK: remove a lock ring from a leading shaft, remove laying and the plug 5f from the bearing 5g.

17. Take the piston 5с and a spring 5d. Check the piston and a spring on lack of wear and damage.

18. Take laying 5h from the pump ZF case.

19. Fix a flange 4 between two wooden blocks so that it was possible to remove a ring 5.

20. Replace a sealing ring 5b.

21. Replace a sealing ring 4f and a konusny ring 4g in the pump case. Check a radial epiploon 4е and replace it if it is necessary.

22. Take a radial epiploon 4е by means of a stripper. Check the bronze plug in the case 4 on absence of damages and wear and replace it if it is necessary.

23. Take the valve of adjustment of a stream of liquid 2с and a spring 2j from the pump 2 case.

24. Fix the valve of adjustment of a stream of liquid 2с in a vice and turn out the valve 2е from the valve of superfluous pressure.

25. Remove a sealing cone 2f and a spring 2d. Check contact surfaces of the valve of adjustment of a stream of liquid 2с and an opening in the pump case on lack of wear or damage. If wear of sealing surfaces is defined, it is necessary to replace the pump.
26. Check both sealing cones. Replace a worn-out cone.

1. Assembly is carried out as it should be, the return to removal.
2. After pump assembly, check correctness of its work and absence of leakage of liquid. If it is necessary, check working pressure of the pump.