Mercedes S-Class W-140

1991-1999 of release

Repair and operation of the car

Dismantling and assembly of the pump of the amplifier of steering

Steering pump of usual type

Design of the steering pump of usual type


2 — the Pump housing 3 — Plastina 4 — the Flange 6 — the Cam insert 7 — the Rotor 11 — the Leading shaft 13 — the Epiploon 16 — the Blade 18, 34a, 34b — Lock rings 21, 22, 26a, 26b, 44 — Sealing rings	30, 43 — Springs 32 — the Valve of management of a stream 35 — the Tank 36 — the Bolt 41 — the Filter 45 — the Cover 47 — the Ventilating cover 60 — the Plastic plug 61 — the Nut

Design of the steering pump of usual type

Dismantling

PERFORMANCE ORDER

1. Turn off a ventilating cover (47) and uncover (45). 2. Turn off 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 the tank is cast together with the case (2).
4. Turn off bolts (25) and remove a flange (4). Check the lower part of a flange (4) for absence of damage and wear.
5. Remove a clamping plate (3) and a cam insert (6).
6. Remove a lock ring (18) from the leading shaft (11). Replace a lock ring.
7. Remove a rotor (7) by means of the plastic hammer from the leading shaft (11) together with blades (16) (10 pieces).
8. Remove the leading shaft (11) from a flange (4).
9. By means of the screw-driver to a vypressuyta a radial epiploon (13) from a flange (4).
10. Remove a lock ring (34a) or (34b).
11. Take the valve of adjustment of a stream of liquid (32) and a spring (30) from a pump housing (2).
12. Fix the valve of adjustment of a stream of liquid (32) in a vice and turn out the valve (53) from the valve of excessive pressure.
13. Remove a sealing cone (51) and a spring (50), check the contact surfaces of the valve of adjustment of a stream of liquid (32) and an opening in a pump housing for lack of wear or damage. If wear of sealing surfaces is defined, the pump needs to be replaced. 14. Check both sealing cones. Replace a worn-out cone.

Assembly

PERFORMANCE ORDER

1. Before assembly oil all details. Replace all sealing rings. If the new valve adjustment of a stream of liquid (32) is installed, pay attention to the correct pressure of opening of the valve of excessive pressure. 2. Collect the valve of adjustment of a stream of liquid (32), having fixed it in a vice, and tighten the valve (53).
3. Insert a spring (30) and the valve of adjustment of a stream of liquid (32) into a pump housing (2).
4. Establish a lock ring (34a) or (34b). 34a — the Pump Vickers/LUK 35b — the Pump ZF
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 assembly of the pump, check correctness of operation of the pump and lack of leak of liquid. If it is necessary, check the working pressure of the pump.

The pump of the amplifier of steering like "Tandem" - model 62, 162

Design of the steering "Tandem" pump (model 62, 162)


2 — the Pump housing 3 — the Clamping plate 4, 14 — Flanges 5, 12 — Persistent washers 6 — the Cam insert 7 — the Rotor 11 — the Leading shaft 13, 27 — Radial epiploons 15a — the Clown 15b — the Plug 16 — the Blade 17, 19, 20 — Fingers 18 — the Lock ring 21, 22, 26b, 39, 39a — Sealing rings	25, 36 — Bolts 27 — the Epiploon 28 — Laying 30, 38, 43 — Springs 32 — the Valve of adjustment of a stream of liquid 35 — the Tank 37 — the Piston 40 — the Screw cartridge 41 — the Filter 45 — the Cover 46 — the Basic bolt 47 — the Ventilating cover 60 — the Plastic plug 61 — the Nut

Design of the steering "Tandem" pump (model 62, 162) (2 of 2)

Dismantling

PERFORMANCE ORDER

1. Turn off a ventilating cover (47) and uncover (45). 2. Turn off a nut (61) of a basic bolt (46). Remove the plastic plug (60), a spring (43) and the filter (41).
3. Turn off bolts (36) of a pump housing (2), remove the tank (35) and a sealing ring (21).
4. Turn off bolts (25) and remove a flange. Check a flange prileganiye surface for lack of wear and damage.
5. Remove a clamping plate (3).
6. Remove a cam insert (6), check a surface of a prileganiye of a clamping plate, and also the surface of sliding of blades on a cam insert (6) for lack of wear and zadir.
7. Remove a lock ring (18) from the leading shaft. Replace a lock ring.
8. Remove a rotor (7) from the leading shaft (11) by means of the plastic hammer and remove blades (16) (10 pieces), check blades (16) in grooves of a rotor (7), - they have to slide in a rotor easily.
9. Remove a persistent washer (5). On "Tandem" pumps of the first version, laying (5) was not established. If on such pump the leading shaft does not rotate easily, jammed or burst, such pump needs to be replaced.
10. Turn out all four cartridges (40) from a pump housing 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) from a cartridge (40). Check the piston and a guide of the piston for lack of wear tracks and damages. If the piston moves in a guide with noticeable difficulties, it is necessary to replace a cartridge.
12. Beat out a finger (19) from a pump housing by means of a drift.
13. Take the leading shaft (11) together with the plug (15b) and a flange (14) from a pump housing.
14. Remove the plug (15b) and check it.
15. Beat out a finger (17) by means of a drift and remove the clown (15a), remove a persistent washer (12) and check its state, remove a flange (14) from the leading shaft (11).
16. By means of the screw-driver take a radial epiploon (13) from a flange, replace a sealing ring (39a).
17. Check basic surfaces for bearings (arrow) on the leading shaft for lack of wear or zadir.
18. Check a radial epiploon (27) in a pump housing if on the pump liquid is found, the transmission of an epiploon will be a probable cause (27).
19. Take a radial epiploon and laying (28) by means of a stripper, check the bronze plug in the case (4) for lack of wear tracks and damages and if it is necessary, replace it.
20. Remove a lock ring (34a). At removal of a lock ring be convinced that the pump housing is not damaged.
21. Take the valve of adjustment of a stream of liquid (32) and a spring (30) from a pump housing (2).
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 excessive pressure. 23. Remove a sealing cone (51) and a spring (50), check the contact surfaces of the valve of adjustment of a stream of liquid (32) and an opening in a pump housing for lack of wear or damage. If wear of sealing surfaces is defined, the pump needs to be replaced.
24. Check both sealing cones. Replace a worn-out cone.

Assembly

PERFORMANCE ORDER

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

The steering "Tandem" pump - model 67, 167

The pump of the amplifier of steering like "Tandem" - model 67, 167


2 — the Pump housing 2b, 2c — the Valve of adjustment of a stream of liquid 2d, 5d, 35g — Springs 2g, 4f, 4h, 5a, 5b, 35a — Sealing rings 4 — the Pump housing 4a — a flange Cover 4b, 4c — Bolts 4d, 4e — Radial epiploons 5 — the Basic ring of the piston 5c — the Piston 5f — the Plug 5g — the Bearing 6 — the Cam insert 6a — Fingers 7 — the Rotor	7a — Blades 8 — the Clamping plate 8a — the Epiploon 8b — Laying 11 — the Leading shaft 11a — the Lock ring 35 — the Tank 35c — the Ventilating cover 35d — the Cover 35e — the Nut 35f — the Plastic plug 35g — Pruzhina 35h — the Filter

On models 140.04/050/051 the tank (35) fastens on an arm (1a) which privorachivatsya in turn to the pump (1)

Remove a sealing cone (51) and a spring (50). Attention: On models 140.04/050/051 the tank (35) fastens on an arm (1a) which privorachivatsya in turn to the pump (1).

Dismantling

PERFORMANCE ORDER

1. Weaken a collar, disconnect a tube (shooter) and fix it sideways, turn off bolts (46) and remove the pump (1) from an arm (1a).
2. Turn off bolts (4 pieces), uncover (2k), check a sealing ring (2g), replace it if it is necessary.
3. On models 140.056/057, on the engine 120 the pump (1) is available the broad tank for adjustment of oil in the tank (35) located between the thermostat and the inlet pipeline.
4. The index of level of oil (36a) with tags of "MIN" and "MAX" for check of level of oil is located on a cover of the broad tank (36).
5. Turn off four bolts (35a) of fastening of the tank (35) and remove it, check a sealing ring (2g), replace it if it is necessary.
6. Turn off a ventilating cover (35c) and uncover (35d). 7. Turn off a nut (35e) from a basic bolt (35i). Remove the plastic plug (35f), a spring (35g) and the filter (35h).
8. Turn off bolts (4b) on a flange (4) and remove a pump housing (2).
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 (8a) and conical laying (8b) and replace an epiploon if it is necessary.
10. Remove a cam insert (6) and fingers (6a). Check a surface of a clamping plate, and also the surface of sliding of blades on a cam insert for lack of wear or damages.
11. Remove a lock ring (11a) from the leading shaft (11). Replace a lock ring. 12. Remove a rotor (7) from the leading shaft (11) by means of the plastic hammer and remove all blades (7a) (10 pieces). 13. On the pump ZF take the leading shaft (11) from a flange (4). On the pumps Vickers/LUK: at first remove 10 blades, and then remove the leading shaft with a flange cover.
14. Check the leading shaft for lack of zadir and wear on surfaces under bearings. If it is necessary, replace it.
15. Turn off bolts (4c) (8 pieces) and uncover a flange (4a), check a radial epiploon (4d) and replace it if it is necessary.
16. Replace a sealing ring (5a). On the pump ZF remove the plug (5f) and the bearing (5g). On the pumps Vickers/LUK: remove a lock ring from the leading shaft, remove laying and the plug (5f) from the bearing (5g).
17. Take the piston (5c) and a spring (5d). Check the piston and a spring for lack of wear and damage.
18. Take laying (5h) from ZF pump housing.
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 conical ring (4g) in a pump housing, check a radial epiploon (4e) and replace it if it is necessary.
22. Take a radial epiploon (4e) by means of a stripper, check the bronze plug in the case (4) for absence of damage and wear and replace it if it is necessary.
23. Take the valve of adjustment of a stream of liquid (2c) and a spring (2j) from a pump housing (2). 24. Fix the valve of adjustment of a stream of liquid (2c) in a vice and turn out the valve (2e) from the valve of excessive pressure.
25. Remove a sealing cone (2f) and a spring (2d). Check the contact surfaces of the valve of adjustment of a stream of liquid (2c) and an opening in a pump housing for lack of wear or damage. If wear of sealing surfaces is defined, the pump needs to be replaced. 26. Check both sealing cones. Replace a worn-out cone.

Assembly

Assembly is carried out as it should be, the return to removal.

After assembly of the pump, check correctness of its work and lack of leak of liquid. If it is necessary, check the working pressure of the pump.