Related Manuals for Meritor MM-0164
Summary of Contents for Meritor MM-0164
- Page 1 ArvinMeritor brand Maintenance Manual MM-0164 Wheel end assembly Hub Reduction 3 planet - 4 planet Issued 4.2005...
- Page 2 You must use special tools, when required, to avoid serious personal injury and damage to components. Meritor uses the following notations to alert the user of possible safety issues and to provide information that will help to prevent damage to equipment and components.
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Page 3: Table Of Contents
Contents Introduction: Exploded view Parts list Cross section Description Tightening torques Lubricants Repairing the wheel end assembly Disassembly Staked hub nut dismantling Star hub nut dismantling Checking and replacing parts Assembly Staked hub nut assembly Star hub nut asssembly Troubleshooting ArvinMeritor Wheel end assembly... - Page 4 Warranty applies to the wheel end assembly installed on vehicles for which it was designed. Warranty is void in the following cases: Manual: Maintenance manual no. MM-0164 • Improper use of the vehicle on which the wheel end assembly is installed (usage conditions, overloading etc.)
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Page 5: Introduction
Introduction Exploded view Parts list Cross section Description Tightening torques Lubricants ArvinMeritor Wheel end assembly... -
Page 6: Exploded View
Exploded view Old version No longer applicable ArvinMeritor Wheel end assembly... -
Page 7: Parts List
Parts list Item Description Hex. socket screw M10x25 Ring gear carrier Hub nut M80x2 Hub casing Ring gear Sealing ring Sun gear Gasket Magnetic plug Spring washer Hexagon screw Cover, hub reduction Grooved pin Washer Old version - No longer applicable Retaining ring Thrust washer Spring washer... -
Page 8: Cross Section
Cross section ArvinMeritor Wheel end assembly... - Page 9 Parts list Item Description Hex. socket screw M10x25 Ring gear carrier Hub nut M80x2 Hub casing Ring gear Sealing ring Sun gear Gasket Magnetic plug Spring washer Hexagon screw Cover, hub reduction Grooved pin Washer Plug Retaining ring Thrust washer Spring washer O-ring Bearing spindle...
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Page 10: Description
1 Introduction Description The hub reduction unit consists of a cylindrical planetary assembly in each hub, fig. 1. The assembly is made up of a sun gear, a number of planetary gears 3 or 4 which rotate round the sun gear and a ring gear which houses the planetary gears. The sun gear is splined to the drive shaft, fig. -
Page 11: Tightening Torques
ArvinMeritor Web site at www.arvinmeritor.com (technical library - manuals). Fig. 4 WARNING Only original Meritor spare parts should be used. Use of non- recommended lubricants will adversely affect performance and service life. Use of non-original parts could seriously affect wheel end assembly performance. - Page 12 1 Introduction Delivery, warranty and system service This section contains instructions for the above delivery, warranty and system service. Given in the maintenance operations column below are the servicing instructions from these manuals which apply to the rear axle hub reductions. Service Interval Maintenance operations...
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Page 13: Repairing The Wheel End Assembly
Repairing the wheel end assembly Disassembly Staked hub nut dismantling Star hub nut dismantling Checking and replacing parts Assembly Staked hub nut assembly Star hub nut asssembly ArvinMeritor Wheel end assembly... - Page 14 2 Repairing the wheel end assembly Disassembly Remove the wheel nuts and retain. Pull off the wheels using a wheel trolley. Remove the air inflation valve from its retainer in the inside wheel. Jack up the rear axle of the vehicle to vehicle manufacturers recommendations and drain the oil from the axle(s).
- Page 15 2 Repairing the wheel end assembly Remove axle shaft. fig. 10 Staked hub nut dismantling Unscrew the hub retaining nut. NOTE : A high torque is required to shear the staking points – and a torque multiplication device should be employed). Remove the hub nut and discard.
- Page 16 2 Repairing the wheel end assembly Remove the circlips from the planetary gear journal pins fig. 13. Hubs can contain 3 or 4 planetary gears. A: 3 planetary version B: 4 planetary version Press out the journal pins (20) using a suitable drift fig. 14. Remove the planetary gears, washers and needle rollers.
- Page 17 2 Repairing the wheel end assembly Checking and replacing parts Thoroughly clean all the hub parts. Check all the parts for wear, deformation or other damage. Check needle rollers, gears and all bearing surfaces. If a planetary gears is damaged, all the planetary gear journals and rollers must also be replaced at the same time since they are matched within the same tolerance class for optimally smooth operation.
- Page 18 2 Repairing the wheel end assembly Staked hub nut assembly Fit a new hub nut and tighten to a torque of 150 ± 30 Nm. Rotate hub 20 revolutions by hand and tighten the hub nut to a final torque of 1200 ± 120 Nm. Stake the hub nut, by deforming the hub nut flange into the staking slots at two diametrically opposite positions.
- Page 19 2 Repairing the wheel end assembly Fit the sun gear with a spring washer and thrust washer and retain with an internal circlip. (fig. 24 - 25) Fit the hub casing onto the hub ensuring that the hub external O- ring is thoroughly lubricated using hub oil.
- Page 20 2 Repairing the wheel end assembly Measure the distance between the sun gear thrust washer and the face of the hub casing. (Record Dim A) fig 28. Check sun gear free movement as follows: • Pull out the sun gear approximately 10 mm. •...
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Page 21: Troubleshooting
Troubleshooting Troubleshooting ArvinMeritor Wheel end assembly... - Page 22 3 Troubleshooting Shown below is a chart of the most common faults occurring to hub assemblies. Condition Possible Causes Checks Actions Required Hub oil loss Wheel bearing damaged Oil loss coming from hub outwards Remove wheel end assembly and replace bearing and any other damaged parts Oil loss between Knocks/Sealant distributed...
- Page 23 Meritor Heavy Vehicle Braking Systems Grange Road, Cwmbran Printed in Italy South Wales NP44 3XU - U.K. Issued 4/2005 Tel.: +44 (0) 1633 834238 © Copyright 2002 Fax: +44 (0) 1633 834191 www.arvinmeritor.com ArvinMeritor Inc. M-graph - MM0164...
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