Quick Connect Power Steering Fitting

Seal Replacement

If a leak occurs between the tubing and tube nut, replace the hose assembly. If a leak occurs between the tube nut and the pump outlet, replace the plastic washer.

Item	Part Number	Description
1	3Z728	O-Ring
2	—	Pressure Hose Nut (Gold) (Part of 3A719)
3	3A719	Power Steering Pressure Hose
4	3A713	Power Steering Return Hose
5A	—	Return Hose Nut (Silver) (Part of 3A713)
6	—	Teflon Seal (Part of 3A713/3A719)
7	—	Snap Ring (Part of 3A713/3A719)
8	3548/3D654	Steering Gear Housing or Power Steering Pump Valve Outlet Fitting
A		Tighten to 34-46 Nm (25-34 Lb-Ft)

The following procedure should be used:

1. Check fitting to determine whether leak is between tube and tube nut or between tube nut and pump outlet.

    CAUTION: DO NOT over-tighten. The casting may crack.

2. If leak is between tube nut and pump outlet, check to ensure nut is tightened to 27-34 Nm (20-25 lb-ft).

3. If leak continues or if leak is between tube and tube nut, remove line.

4. Unscrew tube nut, and inspect plastic seal washer. Always replace plastic seal washer (388898-S) when line is removed. To facilitate assembly of new plastic seal washer, a tapered shaft such as a Teflon Seal Installer D90P-3517-A2, A3 or equivalent may be required to stretch washer, so it may be slipped over tube nut threads.
   
   
   
   

5. The rubber o-ring (3Z728) cannot be serviced with this design. If leak is due to the o-ring , replace the hose assembly.

6. Connect tube nut and tighten to 27-34 Nm (20-25 lb-ft).

   The quick connect fitting may disengage if not fully assembled, if the snap ring is missing, or if the tube nut or the hose end is not machined properly.

   If the fitting disengages, replace the hose assembly. The fitting is fully engaged only when the hose will not pull out. To test for positive engagement, the system should be properly filled, the engine started, and the steering wheel cycled from lock-to-lock. Service hose assemblies have tube nuts, snap rings and o-rings already retained.