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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 >> Disassembly Procedure

Disassembly 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: Stub Shaft And Valve Assembly (700 Gear)
    GM322014Courtesy of GENERAL MOTORS CORP.
  1. Remove the thrust support assembly. Refer to Steering Gear Worm Gear Adjuster Seal and Stub Shaft Bearing Replacement .
  2. Remove the stub shaft (1) and the valve assembly (2) from the steering gear housing.
  3. If necessary, remove the stub shaft (1) from the valve assembly (2) in the following manner:
    1. Tap the stub shaft (1) lightly on a wood block in order to loosen the cap.
    2. Pull the cap and the valve spool out from valve body (2) 6 mm (1/4 in).
    3. Disengage the stub shaft pin (3) from the hole in the valve spool (4).
    4. Fig 2: Exploded View Of Valve Assembly (700 Gear)
    GM740394Courtesy of GENERAL MOTORS CORP.
  4. If the valve assembly needs repair, disassemble the valve in the following manner:
    1. Simultaneously pull and rotate the valve spool (1) from the valve body (3).
    2. Remove the valve spool O-ring seal (2).
    3. Alternately remove the valve body teflon rings (5) and the O-ring seals (4).
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