Assemble

Assemble

NOTE:
- Before assembling. moisten all parts with oil.
- Replace all O-rings.
- If fitting a new flow control valve, pay attention to the correct opening pressure of the overpressure valve.

NOTE:
For application identification refer to "Steering : Power Steering Pump : Service and Repair : Overhaul Procedures : Application and ID" Application and ID


Steps 1 - 13 contained in "Disassemble" article.




14. Assemble flow control valve (32), by clamping flow control valve (32) in a vise at the part which is not ground, and tightening valve screw.




15. Insert compression spring (30) and flow control valve (32) into the pump housing (2).




34a Vickers/Luk pump
34b ZF pump

16. Install locking rings (34a and 34b). Ensure that the flow control valve and the bore in the pump housing are not damaged.




17. Press new radial seal ring into bearing flange with a suitable mandrel.




18. Insert drive shaft (11) into the bearing flange (4). After this, fit rotor (7) with the chamfer on the inner diameter facing the flange of the drive shaft.




19. Fit new locking ring (18) onto the drive shaft. Ensure that the locking ring is correctly seated in the groove.




20. Insert the cam insert with the cast or stamped-in direction of rotation arrow (arrows) facing upwards into straight pins on the pump housing.




21. Insert vanes (10 off) into the rotor with the rounded, metallic glossy sides (arrow) facing the cam insert.




22. Fit on pressure plate (3) with ground face pointing toward cam insert (6).




23. Insert O-rings in bearing flange, then insert bearing flange (4) in the pump housing and attach with the hexagon bolts (25). Tightening torque 30-35 Nm.




24. On the Vickers/LUK power steering pump, insert new O-ring, then fit on reservoir (35) and attach with the bolts.
Tightening torque 8 Nm.




25. Insert filter set (41), spring (43), and plastic sleeve (60), compress slightly and install new self-locking nut (61). Fit on end cover (45) screw on breather cap (47).

26. After installing power steering pump check that power steering pump operates properly and is free of leaks. If necessary, connect pressure gauge and test delivery pressure. Fill or bleed system.