925091 Volvo.Penta O-ring

Introduction
Table 1
Revision Summary of Changes in SEBF9314
05 Reviewed SN prefixes for 2019 NPI
04 Added Flywheel Housing Rework Process using Thrust Plate on RPTO
02 - 03 Added new serial number prefixes © 2019 Caterpillar All Rights Reserved. This guideline is for the use of Cat dealers only. Unauthorized use of this document or the proprietary processes therein without permission may be violation of intellectual property law.Information contained in this document is considered Caterpillar: Confidential Yellow.This Reuse and Salvage Guideline contains the necessary information to allow a dealer to establish a parts reusability program. Reuse and salvage information enables Caterpillar dealers and customers to benefit from cost reductions. Every effort has been made to provide the most current information that is known to Caterpillar. Continuing improvement and advancement of product design might have caused changes to your product which are not included in this publication. This Reuse and Salvage Guideline must be used with the latest technical information that is available from Caterpillar.For questions or additional information concerning this guideline, submit a form for feedback in the Service Information System. To address an urgent issue, use the following resources to communicate your request to Caterpillar Repair Process Engineering:
Caterpillar Dealer Technical Communicator
Dealer Solution Network
Caterpillar Technical Representative
Knowledge NetworkCanceled Part Numbers and Replaced Part Numbers
This document may include canceled part numbers and replaced part numbers. Use NPR on SIS for information about canceled part numbers and replaced part numbers. NPR will provide the current part numbers for replaced parts.Important Safety Information
Illustration 1 g02139237Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools to perform these functions properly. Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. Therefore, the warnings in this publication and the warnings that are on the product are not all inclusive. If a tool, a procedure, a work method, or operating technique that is not specifically recommended by Caterpillar is used, ensure the safety of yourself and others. Ensure that the product will not be damaged or the product will not be made unsafe by the operation, lubrication, maintenance, or the repair procedures that are used.
Improper operation, lubrication, maintenance or repair of this product can be dangerous and could result in injury or death.Do not operate or perform any lubrication, maintenance or repair on this product, until you have read and understood the operation, lubrication, maintenance and repair information.
Safety precautions and warnings are provided in this manual and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons.The hazards are identified by the safety alert symbol which is followed by a signal word such as danger, warning, or caution. The "" safety alert symbol is shown below.
Illustration 2 g00008666This safety alert symbol means:Pay attention!Become alert!Your safety is involved.The message that appears under the safety alert symbol explains the hazard.Operations that may cause product damage are identified by "" labels on the product and in this publication.Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. The safety information in this document and the safety information on the machine are not all inclusive. Determine that the tools, procedures, work methods, and operating techniques are safe. Determine that the operation, lubrication, maintenance, and repair procedures will not damage the machine. Also, determine that the operation, lubrication, maintenance, and repair procedures will not make the machine unsafe.The information, the specifications, and the illustrations that exist in this guideline are based on information which was available at the time of publication. The specifications, torques, pressures, measurements, adjustments, illustrations, and other items can change at any time. These changes can affect the service that is given to the product. Obtain the complete, most current information before you start any job. Caterpillar dealers can supply the most current information.Summary
Thrust loading of the left RPTO (Rear Power Take Off) gear causes the RPTO gear to wear into the flywheel housing. The wear is caused by the swing pump stack and should not affect the RPTO gear. The wear will cause a worn area on the flywheel housing.The repair procedure consists of: inspecting the flywheel housing, machining the flywheel housing, installing dowels, installing a new bushing and installing a thrust washer.References
Reference: Disassembly and Assembly, RENR8261, "C15 and C18 Engines for Caterpillar Built Machines"Parts Required
Table 2
Parts Required
Qty Part Number Description
2 3F-6795 Dowel
1 7N-8525 Thrust Washer
1 8M-9315 Bushing Inspection of Flywheel Housing
Prior to repairing the flywheel housing an inspection should be conducted to determine if the repair is necessary. If the engine is being disassembled for repairs, then a visual inspection is sufficient. If there are signs of adhesive wear on the flywheel housing where the left RPTO gear rests, then continue with the repair procedure. If the engine is suspected of wear but has not been disassembled yet, then a dial indicator inspection can be accomplished.Visual Inspection
During engine disassembly, visually inspect the RPTO gear mating surface on the flywheel housing. If any sign of adhesive wear is shown, then continue with the repair procedure. Refer to Illustration 3 for an example of adhesive wear. Refer to the Engine Disassembly and Assembly manual for guidance