32 41 090 Removing And Installing (Replacing) Hydraulic Pump For Dynamic Drive (N57)
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WARNING:
DANGER OF POISONING
if oil is ingested/absorbed through the skin!
RISK OF INJURY if oil comes into contact with eyes and skin!
RISK OF INJURY if oil comes into contact with eyes and skin!
IMPORTANT:
Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.
Seal off hydraulic lines with seal plugs.
Seal off hydraulic lines with seal plugs.
NOTE:
When replacing power steering pump:
FLUID RESERVOIR must be replaced in event of metal abrasion, sluggish pump shaft or increased wear!
The filter integrated in the oil reservoir can only absorb a limited amount of foreign particles. If the filter clogs, the hydraulic system can no longer be sufficiently protected.
Metal abrasion is perceived in the oil reservoir as metallically glittering hydraulic fluid.
It is only necessary to replace the oil reservoir because of leaks (e.g. at hose connections) only in the event of the unavoidably high ingress of dirt.
FLUID RESERVOIR must be replaced in event of metal abrasion, sluggish pump shaft or increased wear!
The filter integrated in the oil reservoir can only absorb a limited amount of foreign particles. If the filter clogs, the hydraulic system can no longer be sufficiently protected.
Metal abrasion is perceived in the oil reservoir as metallically glittering hydraulic fluid.
It is only necessary to replace the oil reservoir because of leaks (e.g. at hose connections) only in the event of the unavoidably high ingress of dirt.
Necessary preliminary tasks:
- Remove intake port.
- Remove INTAKE SILENCER HOUSING (N57T only up to 09/2011).
- Remove pressure pipe.
- Remove FAN COWL with electric fan.
- Remove OIL RESERVOIR for Dynamic Drive and put to one side.
- Release COOLANT EXPANSION TANK and place to one side.
- Remove BELT PULLEY .
Release screws (1) on holder (2).
Tightening torque: 32 41 16AZ .
Disconnect plug connection (1).
Release hose clamp (2) and detach intake pipe from vane pump.
Undo bolt (3) and remove Dynamic Drive line from vane pump.
Tightening torque: 32 41 13AZ .
Installation note:
Replace all sealing rings.
Make sure hydraulic line is laid without tension and with sufficient distance to adjoining components.
The marks (P) on the intake pipe and bridge of the power steering pump must correspond.
Release bolt (1) on power steering pump at rear.
Tightening torque: 32 41 9AZ .
Release bolts (1) and remove power steering pump towards top.
Tightening torque: 32 41 9AZ .
After installation:
- Check pipe connections for leaks.
- If necessary, carry out DYNAMIC DRIVE START-UP .