Power Steering Gear: Disassembly

Attach steering gear to Assembly Plate (116 589 01 59 00 ). Remove lock nut from adjusting screw. Remove copper seal ring. Remove bolts attaching pitman shaft cover to steering case.

Fig 1: Sectional View of Adjusting Screw Center steering before making adjustment.
With steering in center position, turn adjusting screw clockwise. This forces pitman shaft, with housing, from steering gear case. Remove pitman shaft with cover.
Remove "O" rings from cover. Remove lock ring and seal ring. Remove lock ring from pitman shaft. Remove adjusting screw with thrust washers. See Fig 1 .
Remove bolts retaining bearing cap to steering gear case. Turn worm gear counterclockwise until bearing cap is forced out of steering gear case.
NOTE: Balls will fall from ball guide if worm gear is turned too far.
Remove bearing cap and worm gear with piston/steering nut from steering gear case. Unscrew worm gear with bearing cap from piston/steering nut. Do not lose circulator balls.
Remove "O" ring from bearing cap and attach bearing cap to an assembly fixture.

Fig 2: Removing Bearing Insert from Bearing Cap Assembly must be held in a fixture.
Unscrew slotted nut, using hook wrench, from bearing insert. Remove bearing insert from bearing cap using spanner wrench. See Fig 2 .
Remove steering worm and washer from bearing cap. Remove roller cage from steering worm, along with seal and "O" rings.
Remove bearing and disc from bearing cap. Remove bolts, clamp, and both ball guide halves from piston/steering nut.
Using clamp and tools, remove worm gear nut from piston/steering nut. Remove seal ring and "O" ring from worm gear nut.
Remove bearings from piston/steering nut. Remove lock ring, cover and control valve from steering gear case. See Fig 3 .

Fig 3: Cross Sectional View of Steering Gear