pautas de reutilizacion de engranajes - transmicion.pdf

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Bienvenido: r080es10

Producto: BACKHOE LOADER

Modelo: 428D BACKHOE LOADER MBM

Configuracin: 428D Backhoe Loader MBM00001-UP (MACHINE) POWERED BY 3054C Engine

Pautas de reutilizacin y recuperacinClutch Ring Gears For All Power Shift Transmissions{3030, 3155}Nmero de medio -SEBF8017-09 Fecha de publicacin -19/03/2014 Fecha de actualizacin -19/03/2014

Caterpillar: Confidential Yellow

i05754519

Clutch Ring Gears For All Power Shift Transmissions{3030, 3155}

SMCS - 3030; 3155

Articulated Truck: All

Asphalt Paver: All Backhoe Loader: All

Challenger: All

Cold Planer: All

Integrated Toolcarrier: All Off-Highway Truck/Tractor: All

Pipelayer: All

Road Reclaimer/Soil Stabilizer: All Track-Type Loader: All

Track-Type Skidder: All

Track-Type Tractor: All

Underground Articulated Truck: All Wheel Dozer: All

Wheel Loader: All

Wheel Skidder: All Wheel Tractor-Scraper: All

Motor Grader:

120G (S/N: 4HD1-UP; 82V1-UP; 87V1-UP; 11W1-UP)

12F (S/N: 89H1-UP) 12G (S/N: 3WC1-UP; 3PL1-UP; 61M1-UP; 26V1-UP)

130G (S/N: 7GB1-UP; 74V1-UP; 12W1-UP; 26V1-UP)

140 RIPPG (S/N: 26V1-UP) 140G (S/N: 5MD1-UP; 72V1-UP; 81V1-UP; 13W1-UP)

Pgina 1 de 13428D Backhoe Loader MBM00001-UP (MACHINE) POWERED BY 3054C Engine(S...

04/03/2015https://sis.cat.com/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisw...

14E (S/N: 72G1-UP)

14G (S/N: 96U1-UP)

14H (S/N: ASE1-UP; 7WJ1-UP) 16 (S/N: 49G1-UP)

160G (S/N: 4JD1-UP)

16G (S/N: 93U1-UP)

16H (S/N: 6ZJ1-UP; ATS1-UP) 24H (S/N: 7KK1-UP)

24M (S/N: B9K1-UP; B931-UP)

Introduction

Table 1

RevisionSummary of Changes in SEBF8017

09 Added serial number B93.

08 Changed Motor Grader group effectivity to individual effectivity.

07 Updated introduction, added Canceled Part Numbers section, updated contact information, and updated group effectivity.

2014 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 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



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 g02139237

Follow all safety warnings. Most accidents that involve product operation, maintenance, or repair are caused by failure to observe safety warnings. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. Personnel must be properly trained in order to perform maintenance, repair, or operate any machine. Safety precautions and warnings are provided this instruction and on Caterpillar products. These warnings should be observed before performing any procedures. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. The warnings in this publication and on the product are not all inclusive.

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 in Illustration 2.


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

Reusability of clutch ring gears depends on the degree of damage or wear. Some damaged clutch ring gears obviously cannot be used again. Other gears can be used again, some with certain limitations. For example, gears with heavy wear on the inner teeth, as shown in Illustration 3, can be used again if an increased noise level is acceptable.


Heavy wear on the face of the inner teeth.

Use again. Depending on the location and degree of damage, some damaged clutch ring gears can be reused without limitations. The four most common types of damage which do not necessarily affect use are:

Wear of the ring gear side face



Wear on the crowns of the outer teeth

Notches on the faces of the outer teeth

Damage caused by debris

Wear on the Ring Gear Side Face

Normal wear on the side of the ring gear is shown in Illustration 4. The ring gear is held in a center position by the clutch housing. The wear on the side face shows the area of ring gear contact with the clutch housing. The size of the worn area can change around the ring gear. This change is not an indication that the ring gear has been bent from the original shape. Places where no wear has taken place are indications of low areas. Clutch ring gears that have the above characteristics of side face wear can be used again.


Use again. The arrow shows normal wear on the side face of a ring gear.

Wear on the Crowns of the Outer Teeth

A broken clutch disc can score (make marks), or put grooves in the tips of the outer teeth on the ring gear. See Illustration 5 and Illustration 6. A ring gear can be used again if the crowns of the outer teeth show score marks. A ring gear cannot be used again if the crowns of the outer teeth have deep grooves.




(1) Ring gear with score marks

Use again. If the damage is similar to the score marks (1), as shown in Illustration 5.


(2) Ring gear with deep grooves

Do not use again. if the damage is similar to the deep grooves (2), as shown in Illustration 6.




Ring gear with notches on the faces of the outer teeth and a groove across several teeth.

Refer to Illustration 7 that shows a ring gear with a groove that runs across the width of the gear. This type of groove was made when the ring gear was machined. Ring gears that have this type of groove can be used again. Only a few teeth of each disc will come in contact with the groove at one time.

Use again. After the notches are measured and found to be acceptable

Notches on the Faces of the Outer Teeth

The load of the clutch discs on the outer teeth of the ring gear causes short notches on the faces of the outer teeth. See Illustration 7. Discs should be inspected to determine the depth of the notches. During operation, deep notches will cause incorrect separation between the clutch discs and plates. Friction will build, causing excessive heat in the clutch.

Although some clutches will function adequately with notches deeper than the limits shown below, the wear could exceed the hardened depth. Additional wear will be more rapid, especially if new clutch discs are used.

The following procedure must be used to determine if a ring gear with notches on the outer teeth can be used again:

1. Cut a piece of 0.13 mm (0.005 inch) thick shim stock to the dimension of 2.4 mm (0.09 inch) wide and 50.8 mm (2.00 inch) long. If 0.13 mm (0.005 inch) thick shim stock is not available, use a 0.13 mm (0.005 inch) thickness gauge (feeler gauge) can be cut to a length of 2.4 mm (0.09 inch).




(A) Maximum width of shim stock

2. Put the piece of shim stock into a notch. The shim must fit into the bottom of the notch without contacting the sides of the notch that have a taper. Refer to Illustration 8. If the shim does not fit in the bottom of the notch, cut the shim to fit into the notch.


Measure notches with shim stock.



3. Put a steel ruler or other straight edge across the face of the tooth. Refer to Illustration 9. Make sure that the steel ruler is in contact at all places across the width of the face.

4. Hold the steel ruler in place and pull on the shim. Check the depth of all the notches in each of four teeth, 90 degrees apart.

5. If you can pull the shim easily from any of the notches checked, do not use the ring gear again.

6. If you cannot pull the shim easily from any of the notches checked, use the ring gear again.


Refer to Illustration 10 for ring gear that is flanged or not symmetrical (3) and ring gear that is symmetrical (4) (same shape on both sides).

Symmetrical ring gears with notches in the outer teeth, that are worn beyond the 0.13 mm (0.005 inch) maximum, can be used again. To reuse, the ring gear must be turned so that the clutch discs contact with the opposite face of the outer teeth. Refer to Illustration 11.




Symmetrical ring gear that has been turned.

The upward arrow shows the notch.

The downward arrow shows opposite face of the outer teeth.

Note: A ring gear that is not symmetrical cannot be turned. If the notches in the outer teeth have worn beyond the 0.13 mm (0.005 inch) maximum, replace the ring gear.

Damage Caused by Debris

Raised areas, burrs, or rough edges on the gear teeth must be removed with a grinder or a 6V-2010 Polishing Stone . Refer to Illustration 12 through Illustration 14 for examples of this type of damage. When grinding, be careful not to change the profiles (shape) of the teeth.

Pgina 10 de 13428D Backhoe Loader MBM00001-UP (MACHINE) POWERED BY 3054C Engine...



The arrow heads that shows the raised area or burrs.

Use again. After raised areas and/or burrs are removed with a small grinder or a 6V-2010 Polishing Stone .


The arrow heads that shows the raised area or burrs.

Use again



Be careful with burrs and gouges caused by debris, as shown in Illustration 14. After removing the high areas or rough edges, inspect the gears for cracks using magnetic particle testing equipment. Refer to ""Suppliers of Magnetic Particle Testing Equipment" " at the end of this Reuse and Salvage Guideline for a list of equipment suppliers.

At the time of assembly, ensure that the ring gears are still round. The best practice to accomplish this is to see if a new disc will fit over the teeth without force.


Damage caused by debris.

Use again. After raised areas or burrs are removed carefully with a small grinder, or a 6V-2010 Polishing Stone . Ensure that no change in the shape of the teeth has occurred from grinding or polishing.

Suppliers of Magnetic Particle Testing Equipment

MAGNAFLUX3624 W. Lake AvenueGlenview, Illinois 60026 U.S.A.www.magnaflux.comPhone: (847) 657-5300Fax: (847) 657-5388

Note: Magnaflux also has North American Service Centers in California, Connecticut, Florida, Illinois, Indiana, Minnesota, New Jersey, Ohio, Pennsylvania, South Carolina, Texas, Virginia, and Wisconsin. Training Courses on equipment operation are also available.

ECONCOSPECT CORPORATION1757 Tanen Street



Napa, California 94559 U.S.A.Phone: (707) 226-9833

HANCO INTERNATIONALDivision of Hannon Co.1605 Waynesburg Dr. SECanton, Ohio 44707 U.S.A.www.hanco.comPhone: (330) 456-4728Fax: (330) 456-3323

KWIK-WAY MANUFACTURING COMPANY500 57th StreetMarion, Iowa 52302, U.S.A.kwik-way.comPhone: (319) 377-9421Fax: (319) 377-9101

Copyright 1993 - 2015 Caterpillar Inc.

Todos los derechos reservados.

Red privada para licenciados del SIS.

Wed Mar 4 09:45:18 EST 2015

r080es10



pautas de reutilizacion de engranajes - transmicion.pdf

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