Mercedes W124

since 1985-1995 of release

Repair and car operation



W124 Mercedes
+ Governing bodies and control devices
+ MAINTENANCE
+ 2. Maintenance (diesel engines)
+ ENGINE
+ 4. Repair of 6-cylinder petrol SOHC engines
+ 5. Repair of 6-cylinder petrol DOHC engines
+ 6. Repair of the diesel engine established in the car
+ 7. Major maintenance of engines
+ COOLING SYSTEM
+ FUEL SYSTEM
+ 10. System of injection of BOSCH CIS-E fuel (KE-JETRONIC)
+ 11. System of injection of BOSCH HFM fuel
+ 12. Fuel system of diesel engines
+ 13. Fuel system of diesel engines
+ SYSTEMS OF START, IGNITION
+ 15. System of ignition of 4-cylinder petrol engines
+ 16. System of ignition of four-cylinder petrol engines
+ PRESTARTING HEATING
+ TRANSMISSION
+ 19. Mechanical transmission
+ 20. Automatic transmission
+ POWER SHAFTS
+ BRAKE SYSTEM
- SUSPENSION BRACKET
   23.2. General information
   23.3. Bearing of a forward nave
   23.4. Nave of a forward wheel
   23.5. Rotary fist
   23.6. Shock-absorber of a forward suspension bracket
   23.7. Spring of a forward suspension bracket
   23.8. Bottom lever of a forward suspension bracket
   23.9. Forward stabilizer of cross-section stability
   23.10. Fixing element of a back nave
   23.11. Replacement of the bearing of a back nave
   + 23.12. Shock-absorber of a back suspension bracket
   23.13. Spring of a back suspension bracket
   + 23.14. Levers of a back suspension bracket
   23.15. Bottom lever of a back suspension bracket
   23.16. Stabilizer of cross-section stability of a back suspension bracket
   23.17. Connecting earring of the stabilizer of cross-section stability
   23.18. System of a being self-leveled back suspension bracket on the Versatile person models
   - 23.19. Elements of a being self-leveled back suspension bracket
      23.19.2. Back shock-absorber
      23.19.3. Pressure accumulator
      23.19.4. Control unit
      23.19.5. Connecting draft of the control unit
      23.19.6. Hydraulic pump
   23.20. Steering wheel
   23.21. Steering column
   23.22. Lock steering column / lock of ignition
   23.23. Contact group of the lock of ignition
   23.24. Rubber coupling of a steering shaft
   23.25. Steering transfer
   23.26. Soshka of steering transfer
   23.27. Replacement of the bottom sealing ring of steering transfer
   23.28. Pump of the amplifier of a steering
   23.29. Pumping of system of the amplifier of a steering
   23.30. Steering shock-absorber
   23.31. Central steering draft
   23.32. Intermediate lever of a steering
   23.34. Spherical hinges of cross-section steering draft
   23.35. Cross-section steering draft
   23.36. Corners of installation of wheels
+ BODY
+ ELECTRIC EQUIPMENT
+ CHECK OF MALFUNCTIONS






23.19.6. Hydraulic pump

The hydraulic pump on models with 4-cylinder petrol engines and diesel engines without a turbo-supercharging

Removal

Connection places to the hydraulic pump of a tube and a hose

PERFORMANCE ORDER
1. Remove pressure in hydraulic system.
2. Wipe area about connections of the hydraulic pump, then unscrew a connecting bolt and a nut and disconnect from the hydraulic pump a tube and a hose (see fig. Connection places to the hydraulic pump of a tube and a hose). Remove sealing laying and jams close the hose and tube ends and openings in the hydraulic pump.
3. Unscrew four bolts, fixing the hydraulic pump to a head of the block of cylinders and remove the pump with a sealing ring.
Prevention

Do not unscrew two bolts, fixing a pump cover to the pump case.


Repair

Elements of the hydraulic pump

1–bolts;
2–cover;
3–sealing ring;
4–rotor;
5–case;
6–laying


PERFORMANCE ORDER
1. Using paint, note the mutual provision of a cover and the case of the hydraulic pump (see fig. Elements of the hydraulic pump).
2. Unscrew the bolts, fixing a cover of the hydraulic pump, then uncover also a sealing ring and take a pump rotor.
3. Check a condition of elements of the hydraulic pump and, if necessary, replace them. Irrespective of a condition replace a sealing ring of a cover and rotor laying.
4. Being careful and using a flat screw-driver, take old laying of a rotor from a back part of the case of the pump. Establish new laying of a rotor into place in the pump case.
5. Grease laying of a rotor and a rotor with pure liquid from hydraulic system and establish a rotor in the case.
6. Establish a new sealing ring on a pump cover, then establish a cover with a sealing ring on the pump case. A cover establish so that the labels put before removal were combined. Fix a pump cover bolts, having tightened them the demanded moment.

Installation

PERFORMANCE ORDER
1. Establish a new sealing ring on a back part of the hydraulic pump and establish the pump on a head of the block of cylinders, combining a ledge on a pump rotor with a camshaft groove.
2. Screw in bolts of fastening of the pump and tighten them the demanded moment.
3. Connect to the pump a hose and a tube. Thus from two parties of the connecting coupling of a hose establish laying. Fix a hose and a tube a connecting nut and a bolt, having tightened them the demanded moment.
4. Fill hydraulic system with liquid.

The hydraulic pump on models with 6-cylinder petrol engines and diesel engines with a turbo-supercharging

On models with 6-cylinder petrol engines and diesel engines with a turbo-supercharging the combined hydraulic pump which at the same time works in system of the amplifier of a steering and system of a being self-leveled back suspension bracket is established.