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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 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
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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 |
General Information
Introduction
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169-3374 Injector Sleeve Removal Tool Group Refer to Table 1 for item identification. | |
| 169-3374 Sleeve Removal Tool Group | ||
| Item | Part No. | Description |
| (1) | 9U-6858 | Bridge |
| (2) | 1B-2886 | Bolt (2 Required) |
| (3) | 142-8280 | Sleeve Stud |
| (4) | 151-4833 | Sleeve Jaw |
| (5) | 156-2870 | Puller Stud |
| (6) | 1U-8826 | Bearing, Thrust |
| (7) | 7D-1649 | Washer |
| (8) | 1F-7958 | Nut |
| (9) | 156-2869 | Crimping Swage |
| (10) | 6V-3073 | Case |
| (11) | 173-5508 | Foam Insert |
| NS | NEHS0734 | Tool Operation Manual |
The 169-3374 Injector Sleeve Removal Group is used to remove the brass injector sleeves on 3176 and 3176B Engines, only. This tool group is used with the 9U-6860 Sleeve Replacement Group . The tool group eliminates the tapping and threading operation of the current 9U-6860 Sleeve Replacement Group . The benefits of this method of sleeve removal are easier sleeve removal and little debris that could enter the engine. This tool group uses a crimping die and captured stud similar to the current 3100 Sleeve Removal Tool. This tool group can be used with the cylinder head either on or off the engine.
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: 1-309-578-7372Injector Sleeve Removal
- Remove the rocker arms from the cylinder being repaired.
- Remove the injector.
- Drop 142-8280 Sleeve Stud (3) into the injector sleeve and ensure that stud is resting at the bottom of the injector sleeve. The flat disc part of the sleeve stud should be below the top edge of the brass sleeve.
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Put Sleeve Stud (3) into Injector Sleeve | |
- Apply a light coating of grease to the inside cutting edge of crimping swage (9) and insert into the injector bore. Make sure that the tool is resting on the top edge of the brass sleeve by turning or "wiggling" slightly. It is possible for the tool to rest on the casting ledge (indicated by the arrow) in the cylinder head. The threads of sleeve stud (3) should go into the center hole of crimping swage (9), as shown in Figure 5.
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Insert Crimping Swage (9) Into Bore And Over Sleeve Stud (3) | |
- Using a large hammer, strike the top of crimping swage (9) firmly and squarely. Drive down into the injector bore until the bottom slot is level with the top deck of the cylinder head, as shown in Figure 6.
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Drive Crimping Swage (9) Down Into Injector Sleeve | |
- Remove the crimping swage from the injector bore. If the tool is stuck in the bore, use a crows foot pry bar (12) in the slot to work out the tool. Many times there will be a small amount of brass caught between crimping swage (9) and the injector bore causing the tool to stick. When the tool is removed, the top of the brass sleeve should be rolled over, trapping sleeve stud (3) inside the injector sleeve.
Note: The sharp edge of crimping swage (9) must remain sharp and free of nicks or damage. This tool may be resharpened only on the inside cutting edge. Any sharpening procedure that reduces the OD of the cutting edge will result in poor tool performance and tool sticking.
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Remove Driving Swage (9) With Crows Foot Pry Bar (12) | |
- Insert 151-4833 Sleeve Jaw (4) into the injector bore. The sharp edge of the sleeve jaw is designed to lock the rolled-over brass material between the sleeve stud and the sleeve jaw. The sleeve stud is then prevented from pulling out of the injector sleeve.
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| Illustration 8 | g02888517 |
Insert Sleeve Jaw (4) | |
- The threads of sleeve stud (3) should extend above the surface of the sleeve jaw. Screw 156-2870 Puller Stud (5) onto the exposed threads.
Note: Because there is no way to prevent the sleeve stud from rotating when tightening the puller stud, pull up or cock the sleeve stud in the injector sleeve to prevent rotation. The threads of the sleeve stud and pulling stud should be in good condition and lightly oiled so studs screw together easily.
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| Illustration 9 | g02888519 |
Install Remaining Parts To Remove Injector Sleeve (1) Bridge Plate l (2) Bolt (5) Pulling Stud (6) Thrust Bearing (7) Washer (8) Nut | |
- Assemble two 1B-2886 Bolts (2) into 9U-6858 Bridge Plate (1). Insert pulling stud (5) through the middle hole of the bridge. Install thrust bearing (6), washer (7), and nut (8), as shown in Figure 9.
- Turn nut (8) clockwise until the brass injector sleeve is pulled free from the bore. The injector sleeve will usually "pop" free after a few turns of the nut.
Note: If the sleeve stud pulls out of the injector sleeve before being free, open the end and reinsert the sleeve stud. Driving the crimping swage a few millimeters deeper can also reduce "pullouts", but remember not to cover the pry bar slot.
- Remove the injector sleeve from the sleeve stud by cutting away the rolled-over portion. Use 6V-6193 or 1U-7228 Diagonal Cutter Pliers or similar tool to remove the rolled-over material.
- Clean the injector bore and prepare for sleeve installation as per Special Instruction, SEHS9246-01.