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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 46 (Power Steering) >> Repair Instructions >> Steering Gear Valve Replacement - Off Vehicle >> Assembly Procedure

Assembly Procedure

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Exploded View Of Valve Assembly (700 Gear)
    GM740394Courtesy of GENERAL MOTORS CORP.
  1. If disassembled, reassemble the valve assembly in the following manner:
    1. Alternately install the valve body teflon rings (5) and the O-ring seals (4).
    2. Install the valve spool O-ring seal (2) to the valve spool (1).
    3. Lubricate the valve spool (1) and O-ring seal (2) with power steering fluid.
    2. Fig 2: Valve Spool, Valve Spool Hole & Valve Body
    GM447014Courtesy of GENERAL MOTORS CORP.
  2. Simultaneously push and rotate the valve spool (2) into the valve body (1) until the hole (3) in the valve spool (2) for the stub shaft pin is accessible from the opposite end of the valve body (1).
    3. Fig 3: Aligning Stub Shaft Cap Notch With Valve Body Pin
    GM322016Courtesy of GENERAL MOTORS CORP.
  3. If necessary, install the stub shaft to the valve spool in the following manner:

    Lubricate the stub shaft assembly (3).

    1. Insert the stub shaft (3) into the valve spool.
    2. Insert the pin.
      3. IMPORTANT: Make sure that the shaft cap notch (1) is mated with the valve body pin before installing the valve body into the steering gear assembly.
    3. The notch in the cap (1) must fully engage the valve body pin (2). Seat the cap against the valve body shoulder.
    4. Fig 4: Exploded View Of Stub Shaft, Steering Gear Valve Assembly & Worm Shaft
    GM322013Courtesy of GENERAL MOTORS CORP.
  4. Install the stub shaft (7) and valve assembly (6) to the worm shaft (5). Ensure the pin fits in the worm shaft to the slot in the valve assembly.
  5. Install the thrust support assembly. Refer to Steering Gear Worm Gear Adjuster Seal and Stub Shaft Bearing Replacement .
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