Steering Gears Application Guide - CARQUEST Auto Parts

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Common Complaints16−POWER STEERING GEARS5.Hard Steering. Hard steering is experienced when steering wheel effort exceeds 100 inch poundsmeasured at the steering wheel retaining nut. Hard steering will remain constant through the full turn. Donot confuse hard steering with binding.The driver may describe hard steering in the following ways:* No power assist* Steers like a manual gear* Won't turn all the way6.Hard steering can result from hydraulic and/or mechanical problems. A complete mechanical andhydraulic diagnosis is necessary to determine the cause.Excessive Free Play / Unresponsive Motion. Excessive free play is a condition where there is toomuch steering wheel movement before the steer tires move. A small amount of free play is considerednormal.The driver may describe free play in the following ways:* Too much slop in the wheel* Too much backlash* Slack in the wheelFree play is normally a function of looseness in the linkage.7. Shimmy Shimmy is a shake or vibration of the front tires that is transmitted through the steering wheel.The driver may describe shimmy in the following ways:* Steering wheel shake* Cab shakes* Steering wheel chatter8.Shimmy is a funchtion of looseness in the steering linkage, looseness in front end components orunbalanced tires. Shimmy can also be caused by air trapped in the system.Noise Noise in the steering system can come from any number of components. Harmonics or hydraulicnoise can be caused by fluid flow. Metallic or grinding noises come from component parts.The driver may describe noise in the following ways:* Growls* Swishes* Pops when steering* MoansWhen noise is present you must first determine if it is a mechanical or hydraulic noise. Most mechanicalnoises are a result of looseness or wear in components. Hydraulic noise will normally be associated withproblems in pump flow, such as cavitation or low fluid levels.16 − 43
16−POWER STEERING GEARSNotesNotes16 − 44
Page 1: Issued: 2/1/2010Catalog #: CQ-10004
Page 6 and 7: Warranty Information16−POWER STEE
Page 8 and 9: Bendix®16−POWER STEERING GEARSBe
Page 10 and 11: Ross16−POWER STEERING GEARSRoss S
Page 12 and 13: Saginaw16−POWER STEERING GEARSSag
Page 14 and 15: Sheppard16−POWER STEERING GEARS29
Page 16 and 17: Sheppard16−POWER STEERING GEARS49
Page 18 and 19: Sheppard16−POWER STEERING GEARSM8
Page 20 and 21: Sheppard16−POWER STEERING GEARSSh
Page 22 and 23: TRW/Ross16−POWER STEERING GEARSHF
Page 24 and 25: TRW/Ross16−POWER STEERING GEARSHF
Page 26 and 27: TRW/Ross16−POWER STEERING GEARSTA
Page 28 and 29: TRW/Ross16−POWER STEERING GEARSTR
Page 30 and 31: Oil Specifications16−POWER STEERI
Page 32 and 33: Sheppard Troubleshooting Guide 16
Page 34 and 35: Sheppard Troubleshooting Guide 16
Page 36 and 37: Ross Troubleshooting Guide16−POWE
Page 38 and 39: Ross Troubleshooting Guide16−POWE
Page 40 and 41: Dual Steering Systems16−POWER STE
Page 42 and 43: Hydraulic Supply Diagnosis16−POWE
Page 46: CARQUEST CorporationRaleigh, North

Steering Gears Application Guide - CARQUEST Auto Parts

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