- Caterpillar Products:Machine Engines All C175 Series
Introduction
Important Safety Information
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| Illustration 1 | g02139237 |
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 Cat 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 Section
Safety Icon Nomenclature
Personal Protection/Important Information
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| Illustration 2 | g02166423 |
Personal Protection/Important Information | |
Prohibited Action
| No smoking |
Hazard Avoidance
| Crushing hazard (foot) |
| Crushing hazard (hand) |
| Pinch point |
| Fire hazard |
| Electrical Shock - Hazard |
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| Fire hazard |
Additional Contact Information
For additional product support questions concerning this tool, contact the Dealer Service Tools Hotline at:
USA: 800-542-8665, Option 1
International: 1-309-578-7372
General Information Section
Introduction
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| Illustration 3 | g03865785 |
The 482-7519 Feeler Gage Group is designed to provide accurate and repeatable valve lash adjustment by providing a fixed gap setting stop. It also works as a Go/No-Go verification gage to check valve lash on previously adjusted valve mechanisms. The Feeler Gage body is precision ground to ensure accuracy. Both gage assemblies are marked with the nominal dimension for gap setting and the Go/No-Go limits for inspection.
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| Illustration 4 | g03862628 |
References
| References | |
| KENR5397 | Valve Lash-Adjust |
| KENR9758 | Valve Lash-Adjust |
| KENR9338 | Valve Lash-Adjust |
Specifications
| 482-7519 Feeler Gage Tool Group | |
| Description | Specification |
| Approximate Height | 57 mm (2.2 in) |
| Approximate Length | 305 mm (12 in) |
| Approximate Width | 177 mm (7 in) |
| Approximate Weight | 0.5 kg (1.2 lbs) |
Nomenclature
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| Illustration 5 | g03862326 |
| 482-7519 Feeler Gage Tool Group | |||
| Item | Part No. | Description | Qty |
| 1 | Case | 1 | |
| 2 | Right Intake Assembly | 1 | |
| 2a | Screw | 2 | |
| 2b | 482-7521 | Intake Body | 1 |
| 2c | Handle-Blue | 1 | |
| 3 | Right Exhaust Assembly | 1 | |
| 3a | Screw | 2 | |
| 3b | 482-7522 | Exhaust Body | 1 |
| 3c | Handle-Red | 1 | |
| 4 | Foam | 1 | |
Operation Section
Operation
Note: Allow the engine to cool for at least 20 minutes before performing the valve lash adjustment.
- Refer to the specific Test and Adjust procedure. The number 1 piston should be in the top center position of the stroke. Perform adjustments according to the designated valves, according to the chart listed in the procedure.
Note: Valve lash is measured between the valve bridge spanning the valve stems of the intake, and exhaust valves and the rocker arm button that contacts the valve bridge. Measurements and adjustments must be made with the valves fully closed.
- Firmly tap the rocker arm at the top of the adjustment screw with a soft face mallet (such as 1S-0258). This will ensure the lifter roller seats against the base circle of the cam lobe.
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| Illustration 6 | g03865722 |
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| Illustration 7 | g03865728 |
- Adjust the valve lash on the appropriate valves by loosening the adjustment locknut, and insert the nominal setting end of the intake or exhaust feeler gage between the bridge and rocker arm button.
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| Illustration 8 | g03865733 |
- Turn the adjusting screw to obtain the proper setting. A light amount of drag on the feeler gage should be felt. If the gage cannot be moved with a light amount of pull or pushing force, readjust the screw.
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| Illustration 9 | g03865745 |
- Hand tighten the adjustment locknut using the 458-3600 Torque Wrench Assembly. Hold the adjustment screw stationary while applying torque to the locknut with a 6mm hex key wrench. The wrench provides a preset torque of 120 +/-15 Nm (90+/-11 lb/ft).
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| Illustration 10 | g03865748 |
- Check the gap with the Go/No-go end of the Feeler Gage Group. The Go section of the gage body should insert between the bridge and rocker arm button. The No-Go portion should not fit. If the Go section will not insert between the bridge and rocker button, then repeat steps 4, 5 and 6. If the No-Go section will insert between the bridge and rocker button then repeat steps 4, 5 and 6.
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| Illustration 11 | g03865755 |
Inspection and Maintenance
Inspection
Inspect each gage body prior to each use for nicks, burrs, bends, or deep scratches. If damage is found, discontinue use until inspected and released for use by an approved inspector at the dealership.
- Frequently inspect the gages (at least annually) by an approved dealership gage inspector. Maintain a written record of all inspections.
- Make sure screws (2a and 3a) are tight and hold the body in place firmly. Use a thread retaining compound if necessary, to ensure retention.
Service Parts
| 482-7519 Feeler Gage Tool Group Service Parts | |||
| Item | Part No | Description | Qty |
| 2b | 482-7521 | Body-Intake | 1 |
| 3b | 482-7522 | Body-Exhaust | 1 |
Cleaning
Clean the tooling after each use using a non-solvent based cleaner, and a lint free cloth.
Storage
- Store the tooling in a clean, dry location to prevent rust or corrosion. Tooling can be damaged by moisture or high humidity.
- The tool should be stored in the most stable position.
Tool Disposal
At the end of the operational life of the tool, destroy the tool, dispose of as scrap, and replace.