Specifications For Crankshafts - 3500 Engines - SEBF8041 PDF [PDF]

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19/10/2016

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Bienvenido: r080am5 Producto: NO SE HA ESCOGIDO NINGUN EQUIPO Modelo: NO SE HA ESCOGIDO NINGUN EQUIPO Configuración: NO SE HA ESCOGIDO NINGUN EQUIPO

Pautas de reutilización y recuperación Specifications for Crankshafts in 3500 Engines {0760, 1202} Núm e rode me dio-SEB F8041-49

F ec ha de publica ción-21/01/2015

F e cha de ac t ua liza ción-02/06/2016

Caterpillar: Confidential Yellow

i06718100

Specifications for Crankshafts in 3500 Engines {0760, 1202} SMCS - 0760; 1202

Engine 3500 and G3500 Engines 3512B (S/N: FFS1-UP) 3516B (S/N: LR41-UP)

Introduction Table 1 Revision

49 46-48

45

43, 44

Summary of Changes in SEBF8041

Added new part number 241-0221 to Table 9. Added new serial number prefixes. Incorporated 3500 specifications from Reuse and Salvage Guidelines, SEBF8156 into document. Added the following information: "Oil Hole Dimensions" "Oil Plug Installation" "Improvements to Crankshafts" "Counterweights" "Balancing 3500 Crankshafts" "Counterweight Installation and Bolt Torque" Added new serial number prefixes.

© 2016 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 intellect ual property l aw. Information contained in this document is considered Caterpillar: Confidential Yellow.

This Reuse and Salvage Guideline contains the necessary information in order 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 in order 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. In order to address an urgent issue, use the following resources in order to communicate your request to Caterpillar Repair Process Engineering: Caterpillar Dealer Technical Communicator Dealer Solution Network Caterpillar Technical Representative Knowledge Network

Canceled Part Numbers and Replaced Part Numbers This document may not 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

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Illustration1

Búsqueda del medio - SEBF8041 - Specifications for Crankshafts in 3500 Engines {0760, 1202}

g02139237

Work 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 in order 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 recommended by Caterpillar is used, ensure that it is safe for you and for other people to use. 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 "WARNING" safety alert symbol is shown below.

Illustration2

g00008666

This 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 "NOTICE" 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 This guideline provides reuse specifications for Cat 3500 engine crankshafts. This guideline is intended to supplement Reuse and Salvage Guideline, SEBF8039, Reuse and Salvage Guideline, SEBF8042 and Reuse and Salvage Guideline, SEBF8054. If a crankshaft meets the specifications that are found in this guideline, the crankshaft can be expected to give normal performance until the next overhaul when the crankshaft is used again in the same application. Crankshafts that are acceptable according to Caterpillar specifications that are published in this document are not necessarily acceptable to some insurance companies and marine groups.

References Reference: Reuse and Salvage Guideline, SEBF8039, "Cleaning and Inspecting Cat Crankshafts".

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Búsqueda del medio - SEBF8041 - Specifications for Crankshafts in 3500 Engines {0760, 1202}

Reference: Reuse and Salvage Guideline, SEBF8042, "Procedure for Grinding and Polishing the Crankshaft". Reference: Reuse and Salvage Guideline, SEBF8054, "Procedure to Measure and Straighten Bent Crankshafts". Reference: Reuse and Salvage Guideline, SEBF8175, "Procedure to Rebuild Vibration Dampers for 3500 and C175 Family of Engines". Reference: Reuse and Salvage Guideline, SEBF9134, "Procedure to Shot Peen 3512, 3516, and 3524 High Displacement Crankshafts". Reference: Technical Supplement, SELD0077, "Cat Remanufactured Products Guide".

Specifications for Using a Crankshaft "As Is" Note: Prior to measuring the crankshaft, perform a visual inspection and magnetic particle inspection as described in Reuse and Salvage Guideline, SEBF8039. Note: Refer to Reuse and Salvage Guideline, SEBF8054, "Procedure to Measure and Straighten Bent Crankshafts" for more information on the procedures and tools that are required to perform crankshaft measurements.

The maximum "Use Again" Total Indicator Runout (TIR) for most used crankshafts without straightening or grinding can be found in Table 2. Do not use the crankshaft "as is" if the TIR is more than the specification that is found in Table 2. If a crankshaft is reground, the journals must be in alignment with other surfaces of the crankshaft. The TIR for crankshafts that have been reground is given in Table 2. The crankshaft cannot be used "as is" if the TIR for any of the measurements (1) through (8) in Illustration 3 are more than the specifications in Table 2. If possible, grind the crankshaft to the next standard size and measure the crankshaft again to check if the crankshaft is within specifications. High displacement crankshafts must have the fillets of the journals shot peened if the journals are ground undersize. Refer to Reuse and Salvage Guideline, SEBF9134, "Procedure to Shot Peen 3512, 3516, and 3524 High Displacement Crankshafts" for further information on how to shot peen a 3500 crankshaft.

Illustration 3

g02703116

The counterweights are not shown for clarity (1) Pilot hub for flywheel (2) Flange face for flywheel (3) Flange for flywheel (4) Main bearing journals (5) Gear assembly pilot diameter (6) Straight shaft or tapered shaft (7) Flange face for pulley or damper (8) Pilot hub for damper

Table 2 Measurements of the Maximum TIR The maximum TIR for the main bearing journals on the used crankshafts and the crankshafts that have been reground is shown in the column named Main Bearing Journals. The other specifications are only for crankshafts that have been reground. It is not necessary to check a used crankshaft for the other dimensions unless the crankshaft has been reground. Crankshafts that have been reground must meet the specifications that follow. If the crankshafts do not meet the specifications, check the method that was used to grind. Part Number

Flywheel Pilot Outer Diameter (1)

Flange Face for Flywheel (2)

Flywheel Flange Outer Diameter (3)

Main Bearing Journals (4)

Flange or Shoulder for Pulley, Gear, or Damper (5)

Straight shaft or Tapered Shaft (6)

Flange Face for Damper or Adapter (7)

Pilot Hub Outer Diameter for Damper (8)

0.05 mm (0.002 in.)

0.025 mm (0.0010 in.)

0.025 mm (0.0010 in.)

3508 170.0 mm (6.69 inch)

152-7625 152-4994 7E-4899 7E-3912 7W-0210 9Y-3798

0.025 mm (0.0010 inch)

0.025 mm (0.0010 inch)

0.05 mm (0.002 in.)

0.13 mm (0.005 in.)

0.05 mm (0.002 in.)

3512 170.0 mm (6.69 in.)

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19/10/2016 1W-5001 7W-0214 8N-7105 128-6786 161-2512 173-1812 322-9879

Búsqueda del medio - SEBF8041 - Specifications for Crankshafts in 3500 Engines {0760, 1202}

0.025 mm (0.0010 in.)

0.025 mm (0.0010 in.)

0.05 mm (0.002 in.)

0.13 mm (0.005 in.)

0.05 mm (0.002 in.)

0.05 mm (0.002 in.)

0.025 mm (0.0010 in.)

0.025 mm (0.0010 in.)

0.05 mm (0.002 in.)

0.025 mm (0.0010 in.)

0.025 mm (0.0010 in.)

0.05 mm (0.002 in.) n

0.025 mm (0.0010 in.)

0.025 mm (0.0010 in.)

0.05 mm (0.002 in.)

0.025 mm (0.0010 in.)

0.025 mm (0.0010 in.)

0.05 mm (0.002 in.)

0.025 mm (0.0010 in.)

0.025 mm (0.0010 in.)

3512 3524 High Displacement 170.0 mm (6.69 in.)

172-0926 201-4250 354-2977

0.025 mm (0.0010 in.)

0.025 mm (0.0010 in.)

0.05 mm (0.002 in.)

0.13 mm (0.005 in.)

0.05 mm (0.002 in.)

3516 170.0 mm (6.69 in.)

7E-3916 7E-5165 7W-0218 8N-9700 128-6788 347-0966448-8942 506-1983

0.025 mm (0.0010 in.)

0.025 mm (0.0010 in.)

0.05 mm (0.002 in.)

0.13 mm (0.005 in.)

0.05 mm (0.002 in.)

3516 High Displacement 170.0 mm (6.69 in.)

172-0830 172-0916 160-5916

0.025 mm (0.0010 in.)

0.025 mm (0.0010 in.)

0.05 mm (0.002 in.)

0.13 mm (0.005 in.)

0.05 mm (0.002 in.)

3520 170.0 mm (6.69 in.)

315-1391 140-1164 245-1336 322-9885 351-9210

0.025 mm (0.0010 in.)

0.025 mm (0.0010 in.)

0.05 mm (0.002 in.)

0.13 mm (0.005 in.)

0.05 mm (0.002 in.)

Specifications for Straightening a Crankshaft Note: Refer to Reuse and Salvage Guideline, SEBF8054, "Procedure to Measure and Straighten Bent Crankshafts" for more information on the procedures and tools that are required to perform crankshaft measurements.

The maximum TIR for straightening Caterpillar crankshafts is found in Table 3. If the TIR for any of the measurements that follow is more than the specifications shown in Table 3, the crankshaft cannot be straightened. Do not straighten crankshafts which are bent beyond these specifications. The measurement is an overall dimension and the measurement is different from the specifications that are shown in Table 2. Table 3 Specifications for Straightening a Crankshaft This table shows the maximum TIR for straightening most Caterpillar crankshafts. The dimensions must be used for straightening purposes only. Do not straighten crankshafts which are bent beyond these specifications. The measurement is an overall dimension and the measurement is different from the specifications and procedures that are shown in Reuse and Salvage Guideline, SEBF8054, "Procedure to Measure and Straighten Bent Crankshafts". Fillet Processing Part Number

Center Main Maximum TIR for Straightening a Crankshaft Induction Hardened

Shot Peening

NA

None

3508 170.0 mm (6.69 in.) (60° V-8)

7E-4899 7E-3912 7W-0210 9Y-3798 152-4994 152-7625

2.03 mm (0.080 in.)

3512 170.0 mm (6.69 in.) (60° V-12)

1W-5001 7W-0214

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