DaimlerChrysler SPRINTER2006 Service Manual
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Contents
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STEERINGTABLE OF CONTENTSpage pageSTEERINGDESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1DIAGNOSIS AND TESTING - POWERSTEERING SYSTEM . . . . . . . . . . . . . . . . . . . . 1COLUMN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4GEAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7LINKAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11STEERINGDESCRIPTIONCAUTION: Use approved fluid only in the powersteering system (Refer to LUBRICATION & MAINTE-NANCE/FLUID TYPES - DESCRIPTION). No otherpower steering or automatic transmission fluid is tobe used in the system. Damage may result to thepower steering pump and system if any other fluidis used, and do not overfill.Power steering systems consist of:• Steering column• Rack and pinion steering gear• Belt driven hydraulic steering pump• Pump pressure and return hoses• Oil CoolerOPERATIONThe steering column shaft is attached to the gearpinion. The rotation of the pinion moves the gearrack from side-to-side. This lateral action of the rackpushes and pulls the tie rods to change the directionof the front wheels (Fig. 1).Power assist is provided by an engine mountedhydraulic pump which supplies hydraulic fluid pres-sure to the steering gear.DIAGNOSIS AND TESTING - POWER STEERINGSYSTEMThere is some noise in all power steering systems.One of the most common is a hissing sound evident ata standstill parking. Or when the steering wheel is atthe end of it’s travel. Hiss is a high frequency noisesimilar to that of a water tap being closed slowly. Thenoise is present in all valves that have a high velocityfluid passing through an orifice. There is no relation-ship between this noise and steering performance.Fig. 1 STEERING COMPONENTS1 - POWER STEERING PUMP ASSEMBLY2 - RESERVOIR3 - HOSES4 - TIE ROD ENDS5 - MOUNTING BOLTS6 - RACK & PINIONVA STEERING 19 - 1 |
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