Using the 149-0173 Choker-Style Fabric Basket to Install and Remove Bucket Teeth{0374, 0599, 0751, 6700, 6800} Caterpillar


Using the 149-0173 Choker-Style Fabric Basket to Install and Remove Bucket Teeth{0374, 0599, 0751, 6700, 6800}

Usage:

769C 01X


Caterpillar Products: All

Introduction

Important Safety Information




Illustration 1g02139237

Think Safety

European Union Compliant, CE marked

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.

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 Tool Operating Manual.

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" and followed by a "Signal Word" such as "DANGER", "WARNING", or "CAUTION". The Safety Alert "WARNING" label is shown below.

A non-exhaustive list of 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 warnings in this publication and on the product are, therefore, not all inclusive. If a tool, procedure, work method, or operating technique that is not recommended by Caterpillar is used, the operator must be sure that the procedures are safe. The operator must also be sure that the product will not be damaged or made unsafe by any unspecified procedures.

The information, specifications, and illustrations in this publication are based on information that was available at the time that the publication was written. 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 and most current information before you start any job.

When replacement parts are required for this product Caterpillar recommends using Caterpillar replacement parts or parts with equivalent specifications including, but not limited to, physical dimensions, type, strength, and material.

Literature Information

This manual contains safety information, operation instructions and maintenance information and should be stored with the tool group

Some photographs or illustrations in this publication may show details that can be different from your service tool. Guards and covers might have been removed for illustrative purposes.

Continuing improvement and advancement of product design might have caused changes to your service tool, which are not included in this publication.

Whenever a question arises regarding your service tool or this publication, consult Dealer Service Tools (DST) for the latest available information.

Safety Section

The Safety section lists basic safety precautions.

Read and understand the basic precautions listed in the Safety section before operating or performing maintenance and repair on this service tool.

General Information Section

The General Information section describes tooling functions and features. The section provides useful information on individual parts, additional tooling, and resources.

Operation Section

The Operation section is a reference for the new operator and a refresher for the experienced operator.

Photographs and illustrations guide the operator through correct procedures for using the tool group.

Operating techniques outlined in this publication are basic. Skill and techniques develop as the operator gains knowledge of the service tool and the tools capabilities.

Maintenance Section

The Maintenance section is a guide to tool inspection, cleaning, storage, and tool disposal

Service Parts Section

The Service Parts section is a reference for parts identification and available part numbers.

Safety Icon Nomenclature

Personal Protection/Important Information




Illustration 2g02166423

Personal Protection/Important Information

Prohibited Action


No smoking

Hazard Avoidance


Crushing hazard (foot)


Crushing hazard (hand)


Pinch point


Fire hazard


Electrical Shock - Hazard


Fire hazard

General Information

Introduction

The 149-0173 Choker-Style Fabric Basket is used to remove bucket teeth on Caterpillar Ground Engaging Tools (GET). It also provides a method of moving bucket teeth in a shop environment or out in the field.

Must be used with a suitable lifting device.

Specifications

Table 1
149-0173 Choker-Style Fabric Basket Specifications    
Inside Depth     430 mm (16.9 inch)    
Inside Width    
300 mm (11.8 inch)    
Weight Capacity    
104.5 kg (230.4 lb)    

Additional Contact Information

For additional product support questions concerning this tool, contact the Dealer Service Tools Hotline at:

USA: 1-800-542-8665, Option 1International: 1-309-578-7372

Operation Section

Remove Bucket Tooth

Use the following procedure to remove a worn or damaged bucket tooth.




    Illustration 3g02849104

    (1) Choker-Style Fabric Basket (1a) Choker Sling




    Illustration 4g02849105

    (1) Choker-Style Fabric Basket (1a) Choker Sling

  1. Inspect choker-style fabric basket (1) before each use. If damage is found, discontinue use and destroy immediately. Refer to the Section ""Inspection" " in this manual for inspection guidelines.

    Note: For clarity, the illustrations in this manual do not show all eight fabric basket choker loops. Make sure that choker sling (1a) is inserted through all eight loops on fabric basket (1), including the loop it is anchored to.




    Illustration 5g02849106

    (2) Bucket Tooth (3) Retainer Pin (4) Bucket Attachment

  1. Position (tilt backward) bucket attachment (4) to help prevent bucket tooth (2) from falling off, once retainer pin (3 ) is removed.

  1. Attach suitable lifting device (5) to choker sling (1a) and slide fabric basket (1) over worn bucket tooth (2) .



    Illustration 6g02849108

    (1) Choker-Style Fabric Basket (1a) Choker Sling (2) Bucket Tooth (3) Retainer Pin (4) Bucket Attachment (5) Lifting Device

  1. Use lifting device (5) to tighten choker sling (1a) around bucket tooth (2) just enough to support the tooth and prevent it from falling.

    Note: Make sure to position fabric basket (1) so the retainer pin hole is exposed to allow retainer pin (3) removal without damaging the fabric basket.




    Illustration 7g02849115

    (1) Choker-Style Fabric Basket (1a) Choker Sling (2) Bucket Tooth (4) Bucket Attachment (4a) Bucket Tooth Adapter (5) Lifting Device

  1. Use proper procedures and tooling to remove tooth retainer pin (3) from bucket attachment (4) .

  1. Position (tilt forward) bucket attachment (4) and, if necessary, loosen bucket tooth (2) from tooth adapter (4a). Make sure that the choker sling and basket are snug and able to support the bucket tooth.

  1. With tension on lifting device (5) supporting the weight of bucket tooth (2), separate tooth and fabric basket (1) from tooth adapter (4a) .

  1. Lower fabric basket (1) onto blocks on the ground. Continue to lower lifting device (5) to remove all tension from choker sling (1a), to relax the choke on the tooth.

  1. Use one of the following two methods to remove worn bucket tooth (2) into fabric basket (1) :

    1. Get help to carefully slide fabric basket (1) off worn bucket tooth (2), being careful not to damage fabric basket and/or choker sling (1a) .

    1. Disconnect lifting device (5) from choker sling (1a) and reattach to the now accessible pin retainer hole in worn bucket tooth (2). Use a suitable clevis and/or chain, dealer supplied. Use lifting device to raise the tooth out of the fabric basket.

  1. After worn bucket tooth (2) is removed, disconnect lifting device (5) and store 149-0173 Choker-Style Fabric Basket in a clean, dry location to prevent weathering and possible damage.

Install Serviceable Bucket Tooth

Note: New replacement bucket teeth have a precast lifting loop for use wit a suitable lifting device during installation. The 149-0173 Choker-Style Fabric Basket is not normally used to install new bucket teeth. For more information on installing new bucket teeth, refer to the appropriate service manuals.

Use the following procedure to install a serviceable bucket tooth without a precast lifting loop.




    Illustration 8g02849116

    (1) Choker-Style Fabric Basket (1a) Choker Sling

  1. Inspect choker-style fabric basket (1) before each use. If damage is found, discontinue use and destroy immediately. Refer to the Section ""Inspection" " in this manual for inspection guidelines.

    Note: For clarity, the illustrations in this manual do not show all eight fabric basket choker loops. Make sure that choker sling (1a) is inserted through all eight loops on fabric basket (1), including the loop it is anchored to.




    Illustration 9g02849117

    (1) Choker-Style Fabric Basket (1a) Choker Sling

  1. Use one of the following two methods to remove worn bucket tooth (2) from fabric basket (1) :

    1. With tooth (2) supported on blocks, get help to carefully slide fabric basket (1) around bucket tooth (2). being careful not to damage the fabric basket and/or choker sling (1a) .

    1. Attach lifting device to retainer pin hole in bucket tooth (2). Use a suitable clevis and/or chain, dealer supplied. Use lifting device (5) to raise the tooth slightly off the ground and slide fabric basket (1) up over the bucket tooth. Tighten choker sling (1a) around the bucket tooth and then carefully lower the bucket tooth and fabric bag onto blocks on the ground. Once secure, disconnect the lifting device from the bucket tooth retainer pin hole.

      Note: Make sure to position fabric basket (1) so the retainer hole is exposed to allow retainer pin (3) installation without damaging the fabric basket.

  1. Attach suitable lifting device (5) to choker sling (1a) lifting loop.



    Illustration 10g02849122

    (1) Choker-Style Fabric Basket (1a) Choker Sling (2) Bucket Tooth (4) Bucket Attachment (5) Lifting Device

  1. Use lifting device (5) to raise fabric basket (1) and position bucket tooth over tooth adapter and align it with retainer pin hole.

  1. Make sure that the choker sling and basket are still snug and able to support the bucket tooth. Use normal procedures and tooling to completely install retainer pin (3) .

  1. After retainer pin (3) has been completely installed, loosen choker sling (1a) and slide fabric basket (1) off bucket tooth (2) .

  1. Store 149-0173 Choker-Style Fabric Basket in a clean, dry location to prevent weathering and possible damage.

Inspection

Inspect 149-0173 Choker-Style Fabric Basket




Illustration 11g02849123

The 149-0173 Choker-Style Fabric Basket loses strength from normal wear or physical damage due to misuse. Regular inspections help spot early signs of deterioration. If at all in doubt, the fabric basket must be destroyed.

Note: All equipment should be examined by one person only.

  1. Lay the fabric basket on a flat surface in a well lit area.

  1. Make sure that the load identification label is securely attached and legible.

  1. Examine both the exterior and interior of the basket. Inspect basket webbing and loops. Inspect the choker sling and lifting loop. Inspect the inside of the loop for any sign of wear or damage.

  1. Check for surface chafe, cuts in the webbing or fabric, damaged stitching or seams, and any damage or wear to the lifting loops.

  1. Check for signs of damage from exposure to harsh chemicals or extreme heat.

  1. Immediately destroy worn or damaged fabric baskets.

Note: Refer to the Section ""Damage Causes and Results" " in this manual for more information on identifying types of damage and wear.

Damage Causes and Results

The following are typical causes and results of damage to choker-style fabric basket tooling.

Friction Damage - Burning

  • Overloading or incorrect positioning will cause friction between webbing and/or fabric and surface being lifting.

  • Sliding friction results in heat that melts the surface of the webbing. This type of damage results in the web or fabric surface being hard, brittle, and it will shine, reflect light.

  • Inspect by folding the material to see the extent of burning. Stiffness, brittleness, and cracking are signs of burning and melting.

  • If damaged, the choker-style fabric basket must always be destroyed.

Friction Damage - Cutting

  • Cuts result from friction against unprotected sharp edges of Ground Engaging Tools (GET).

  • Cuts may be clean or matted and soft in appearance.

  • Cuts may be combined with burning.

  • Inspect by folding the material to see the extent of cut damage. Also check for stiffness, brittleness, and signs of burning and melting.

  • If damaged, the choker-style fabric basket must always be destroyed.

Friction Damage - Wear

  • Wear occurs in localized areas caused by dragging along the ground or against bucket teeth.

  • Scuffed surfaces will appear in patches.

  • If scuffing is severe and whole threads are broken, the nylon sling or fabric baskets must always be destroyed.

Impact Damage - Load Bearing Threads

  • This damage results in load bearing, longitude threads bursting out from the middle or sides.

  • If threads are unbroken, there is no loss of strength. However, threads can catch and break if left unattended. Properly repair the sling before using or destroy immediately.

  • If threads are broken, there is loss of strength in the webbing, often at a high degree. The choker-style fabric basket must be destroyed.

Lifting Loop or Sling Eye Damage

  • Inspect for webbing bursting at the seams.

  • Damage is most often caused by using a lifting device hook with a radius smaller than the webbing width.

  • If this damage is present, the choker-style fabric basket must be destroyed.

Seam and Stitch Damage

  • Inspect for loose or torn stitching at sewn joints and seams.

  • If this damage is present, the choker-style fabric basket must be destroyed.

Chemical Damage

  • Inspect for damage caused by the effect of harsh chemicals on nylon and fabric slings and baskets.

  • This damage is often difficult to identify until in a more advanced stage of deterioration.

  • In case of known exposure to harsh chemicals, the choker-style fabric basket must be destroyed.

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