- Motor Grader
- 14 (S/N: EN41-UP; NN41-UP)
- 14M Series 3 (S/N: E9S269-UP; N9S263-UP)
Reference: Disassembly and Assembly, M0067666, "14M3and 14 Motor Grader", "Rear Axle, Differential, and Final Drive - Remove and Install"
Reference: Disassembly and Assembly, M0067666, "14M3and 14 Motor Grader", "Rear Axle, Differential, and Final Drive - Disassemble"
Reference: Disassembly and Assembly, M0067666, "14M3and 14 Motor Grader", "Rear Axle, Differential, and Final Drive - Assemble"
Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.
Problem
The 308-0888 Bearing As in the rear axle group may fail on the machines listed above. The failure is due to the misalignment of the bearing assembly.
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| Illustration 1 | g06614847 |
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Typical example | |
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| Illustration 2 | g06614850 |
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Typical example | |
The failure of the bearing assembly is reported at low running hours with debris on the differential magnetic plug and the broken pieces of thrust race disc are found in the differential suction screen.
Solution
AVSpare is aware of this problem, but an interim repair has not been defined.
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Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility. |
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Failure to follow all safety guidelines prescribed in this document and by governing authorities and regulatory agencies may result in severe injury or death of personnel or machine damage. |
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When removing a major component or attachment, ensure that it is properly blocked or secured before removing mounting hardware. An assembly that is disconnected without proper blocking may shift or fall, resulting in serious injury or death of personnel or machine damage. |
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Personal injury or death can result from improper maintenance procedures. To avoid injury or death, follow the procedures exactly as stated below. |
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Personal injury or death can result from sudden movement. Prevent possible injury by performing the following procedures before work begins: Move the product or equipment to a smooth, level surface. When applicable, lower equipment/work tools to the ground. Engage the parking brake, system brakes and/or hydraulic lockout control. When applicable, stop the engine and remove the ignition key. Release system pressure from pressurized systems. If applicable, block the wheels/tracks. Turn the battery disconnect switch to the OFF position and if applicable, remove the battery disconnect key. If not equipped with a battery disconnect switch, disconnect the battery cables from the battery and tape the battery clamps. Attach a “Do Not Operate” or similar warning tag at the battery disconnect switch location and as defined by site rules and/or local regulations. |
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| Illustration 3 | g06276183 |
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Access to this service point may require climbing on the equipment. Slipping or falling while climbing on the equipment could result in personal injury or death. Refer to the Operation and Maintenance Manual, Mounting and Dismounting topic for safety information. |
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Failure to use an approved access system during installation and removal of components could result in slipping and falling which could result in personal injury or death. To prevent injury or death, use an approved access system to reach the appropriate mounting locations of the components. Do not climb on the machine. Maintain three-points of contact and/or use a safety harness. |
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Personal injury can result from improper handling of chemicals. Make sure you use all the necessary protective equipment required to do the job. Make sure that you read and understand all directions and hazards described on the labels and material safety data sheet of any chemical that is used. Observe all safety precautions recommended by the chemical manufacturer for handling, storage, and disposal of chemicals. |
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Do not operate the machine if any guards or covers are missing or inadequately secured. Personnel could be seriously injured or machine damage may occur. |
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Observe the safe working load limits of all lifting and blocking devices and keep a safe distance from suspended/blocked loads. Personnel may be seriously injured or killed by falling loads. |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates. |
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| Illustration 4 | g06614891 |
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Rear axle (A) | |
In the event of failure, replace failed bearing assembly (A) with the same part number.