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After studying this chapter, you will be able to:
• Identify the major parts of a parallelogram
steering system.
• Identify the major parts of a rack-and-pinion
steering system.
• Compare the parallelogram and rack-and-
pinion steering systems.
• Explain the operation of a parallelogram
power steering gear.
• Explain the operation of a rack-and-pinion
power steering gear.
• Describe the different types of power steering
pumps.
Technical Terms
ball-and-socket connections
center link
control valve
conventional steering gear
electric power steering
electrohydraulic system
electromechanical systems
electronic steering control systems
four-wheel steering systems
gear reduction
idler arm
irreversible steering system
parallelogram linkage
pinion shaft
pitman arm
pitman arm shaft
power piston
power steering
power steering pump
rack
rack-and-pinion linkage
recirculating ball steering gear
road feel
rotary spool valves
self-contained power steering gears
semi-reversible steering system
spindle assemblies
steering arms
steering gear
steering knuckles
steering shaft
steering shaft coupling
steering wheel
tie rods
tie rod sleeve
worm-and-roller steering gear
worm gear
Steering Systems