2002/11/18 A New Hardened Hub and A New Hardened Adjusting Ring Are Used in Final Drives for Ensuring Wheel Bearing Preload {4051} Caterpillar


A New Hardened Hub and A New Hardened Adjusting Ring Are Used in Final Drives for Ensuring Wheel Bearing Preload {4051}
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Articulated Truck:
D20D (S/N: 9MG1-UP)
D250B (S/N: 5WD1-UP)
D250D (S/N: 6NG1-UP)
D250E (S/N: 5TN1-UP)
D250E Series II (S/N: 4PS1-UP)
D300B (S/N: 4SD1-UP)
D300D (S/N: 5MG1-UP)

Reference: Service Magazine, SEPD0656, "Bearings Are Available for Wheels in Severe Applications" See the article with this title in this issue.

Reference: Service Magazine, SEPD0656, "Correction to Disassembly and Assembly, "Wheel Bearings and Duo-Cone Seals - Install"". See the article with this title in this issue.

Reference: Service Magazine, SEPD0656, "New Procedure for Adjustment of Wheel Bearing Preload" See the article with this title in this issue.

A new hub and a new adjusting ring are available for use in the final drives of the listed trucks in order to ensure that the wheel bearing preload is maintained. The new hub and the new adjusting ring are hardened in order to improve the durability of the parts. The improved wear resistance of the parts will prevent the loss of the bearing preload.

The new 175-7527 Hub can be used in the place of the former 138-4802 Hub. The new 175-7527 Hub can be used in the place of the former 4V-0092 Hub As. The new 176-0775 Adjusting Ring can be used in the place of the former 2K-5133 Locknut. Use the hardened hub and the hardened adjusting ring together.

Table 1
Qty (1)     New Part Number     Description     Former Part Number    
6     175-7527     Hub     138-4802 or 4V-0092    
6     176-0775     Adjusting Ring     2K-5133    
( 1 ) Total quantity per machine

Note: New heavy-duty wheel bearings are also available for improved bearing preload. The new bearings are identified in the reference article that is included in this issue.

Note: The heavy-duty bearings can be installed without the hardened hub and the adjusting ring if that option is desired. In all cases, the wheel bearing adjustment should be checked at the recommended interval of every 2000 hours.

Information System:

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CP-563E, CP-573E, CS-563E, CS-573E and CS-583E Vibratory Soil Compactors Machine Systems Features
CP-563E, CP-573E, CS-563E, CS-573E and CS-583E Vibratory Soil Compactors Machine Systems Electrical System
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R2900 Load Haul Dump Engine Oil and Filter - Change
CP-563E, CP-573E, CS-563E, CS-573E and CS-583E Vibratory Soil Compactors Vibratory System Location of Electrical Components
R2900 Load Haul Dump Engine Oil Level - Check
CP-563E, CP-573E, CS-563E, CS-573E and CS-583E Vibratory Soil Compactors Propel System Propel Electrical System
CP-563E, CP-573E, CS-563E, CS-573E and CS-583E Vibratory Soil Compactors Propel System Location of Electrical Components
R2900 Load Haul Dump Engine Air Filter Secondary Element - Replace
322C Forest Machine Hydraulic System Relief Valve (Line) - Test and Adjust - Equipped with Boom Lowering Control Valves
322C Forest Machine Hydraulic System Relief Valve (Line) - Test and Adjust
938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Hydraulic System Kickout System - Integrated Toolcarrier
C-9 Engine for Caterpillar Built Machines Injection Actuation Pressure - Test
D250E and D300E Articulated Trucks Power Train Output Transfer Gear Group
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CP-563E, CP-573E, CS-563E, CS-573E and CS-583E Vibratory Soil Compactors Machine Systems Location of Hydraulic Components
R2900 Load Haul Dump Fuel System - Prime
R2900 Load Haul Dump Fuel System Primary Filter - Clean/Replace
Installation Instructions for Improved 317-2428 Steering Valve Gp {4307}
3524B Engine for Caterpillar Built Machines Engine Oil Scavenge Pump - Remove
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