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Rack-and-Pinion Steering

Rack-and-Pinion Steering. Steering Gear(RACK). Consists of a pinion shaft, rack, bearings , seals and a gear housing Bolts to the frame or unibody structure Rubber bushing mounts help absorb road shock. Steering Gear. Steering Gear.

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Rack-and-Pinion Steering

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  1. Rack-and-Pinion Steering

  2. Steering Gear(RACK) • Consists of a pinion shaft, rack, bearings, seals and a gear housing • Bolts to the frame or unibodystructure • Rubber bushing mounts help absorb road shock

  3. Steering Gear

  4. Steering Gear • When the pinion shaft turns, the pinion gear acts on the rack gear • Rack slides sideways, moving the tie-rods and the front wheels

  5. Tie-Rod Assemblies • Connect the ends of the rack with the steering knuckles • Rubber dust boots fit over the inner ball sockets to keep out road dirt and water

  6. Basic Power Steering

  7. Power Steering Systems • Most systems use an engine-driven pump and a hydraulic system to assist steering action • An electric motor in the rack may be used to provide assist

  8. Basic Power Steering

  9. Basic Operation • Pressure from the oil pump is used to operate a piston-and-cylinder assembly • When the control valve routes oil pressure into one end of the piston, it slides in its cylinder • Piston movement helps move the steering system

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