National 99147 Redi-sleeve Shaft Repair Sleeve Instruction Manual

1. Introduction

The National 99147 Redi-sleeve is an innovative shaft repair sleeve designed to restore damaged, grooved, or worn shafts to their original sealing surface specifications. This product provides a durable, corrosion-free sealing surface, allowing for the continued use of standard seals without the need for costly shaft replacement or machining. Its ultra-thin construction ensures minimal additional lip loading on the seal.

This manual provides essential information for the safe and effective installation of your National 99147 Redi-sleeve. Please read all instructions carefully before beginning the installation process.

2. Product Features

• Designed to repair damaged, grooved, or worn shafts.
• Durable stainless steel construction for a corrosion-free sealing surface that surpasses most original shaft specifications.
• Ideal for shafts where indications of seal wear, such as tracks or grooves, have developed.
• Ultra-thin construction (0.01 inch / 0.25 mm wall thickness) allows the original seal size to be used with minimal additional lip loading.
• Easy to install with a removable flange and included installation tool.
• The installation tool reduces sleeve distortion and allows for installation without removal from the shaft.

3. Safety Information

WARNING: Always prioritize safety when working on automotive components. Failure to follow safety precautions can result in serious injury or damage to the vehicle.

• Wear appropriate personal protective equipment (PPE), including safety glasses and gloves, at all times.
• Ensure the vehicle is properly supported on jack stands or a lift before working underneath it.
• Disconnect the vehicle's battery before performing any electrical work.
• Be aware of hot engine components and fluids. Allow the engine to cool before servicing.
• Keep hands and clothing clear of moving parts.
• Refer to your vehicle's service manual for specific procedures and torque specifications.
• Keep children and pets away from the work area.

4. Setup and Preparation

4.1 Tools and Materials Required

• National 99147 Redi-sleeve kit (includes sleeve and installation tool)
• New crankshaft seal (or appropriate seal for your application)
• Seal removal tool
• Clean rags or shop towels
• Brake cleaner or suitable degreaser
• Fine-grit sandpaper or emery cloth (optional, for minor burrs)
• Rubber mallet or soft-faced hammer
• Appropriate seal installation tool (if not using the Redi-sleeve tool for the seal itself)
• Lubricant (e.g., engine oil or assembly lube)

4.2 Shaft Inspection and Cleaning

1. Carefully remove the old seal from the shaft. Ensure no debris or damage occurs to the surrounding components.
2. Thoroughly clean the shaft surface where the Redi-sleeve will be installed. Remove all oil, grease, dirt, and old seal material using brake cleaner or a degreaser and clean rags.
3. Inspect the shaft for any burrs or sharp edges that could damage the Redi-sleeve or the new seal. If present, carefully remove them with fine-grit sandpaper or emery cloth, ensuring a smooth surface.
4. Ensure the shaft is completely dry and free of contaminants before proceeding.

5. Installation Instructions

Follow these steps carefully to ensure proper installation of the National 99147 Redi-sleeve.

Image 1: National 99147 Redi-sleeve and its installation tool. The sleeve is a thin metal ring, and the tool is typically a plastic or metal cup-like device used to press the sleeve onto the shaft.

1. Lubricate the Shaft: Apply a thin, even coat of clean engine oil or assembly lube to the shaft surface where the Redi-sleeve will be installed. This aids in smooth installation.
2. Position the Redi-sleeve: Place the Redi-sleeve onto the shaft with the removable flange facing outwards, towards the end of the shaft.
3. Use the Installation Tool: Place the provided installation tool over the Redi-sleeve. The tool is designed to fit snugly over the sleeve and against the shaft.
4. Drive the Sleeve On: Using a rubber mallet or soft-faced hammer, gently and evenly tap the installation tool to drive the Redi-sleeve onto the shaft. Ensure the sleeve is driven squarely and does not cock or bind. Continue until the sleeve is fully seated over the worn area and is in the correct position for the new seal.
5. Remove the Installation Tool: Once the Redi-sleeve is properly seated, remove the installation tool.
6. Remove the Flange: The Redi-sleeve has a removable flange. Carefully grasp the flange and peel or break it off. This flange is only for installation and is not part of the final sealing surface. Ensure no sharp edges remain after removal.
7. Install the New Seal: Lubricate the lip of the new seal with clean engine oil or assembly lube. Install the new seal over the Redi-sleeve using an appropriate seal installation tool, ensuring it is seated squarely and to the correct depth according to your vehicle's service manual.
8. Final Checks: Double-check all connections and ensure no tools or debris are left in the work area. Reassemble any removed components.

6. Maintenance

The National 99147 Redi-sleeve itself is a maintenance-free component once properly installed. Its durable stainless steel construction is designed for long-term performance. However, regular vehicle maintenance, including checking fluid levels and inspecting seals for leaks, is crucial for the overall health of your engine and its components. Adhere to your vehicle manufacturer's recommended service intervals.

7. Troubleshooting

7.1 Sleeve Does Not Go On Easily

• Check for Burrs: Re-inspect the shaft for any burrs or sharp edges that might be obstructing the sleeve. Carefully remove them.
• Lubrication: Ensure the shaft is adequately lubricated.
• Alignment: Verify the sleeve and installation tool are perfectly aligned with the shaft. Do not force the sleeve if it's binding; remove and re-align.

7.2 Leakage After Installation

• Seal Installation: Ensure the new seal was installed correctly and not damaged during installation. The seal must be seated squarely and to the proper depth.
• Sleeve Damage: Inspect the Redi-sleeve for any damage (e.g., scratches, dents) that may have occurred during installation. A damaged sleeve will compromise the seal.
• Flange Removal: Confirm the removable flange was completely and cleanly removed from the Redi-sleeve. Any remaining pieces can interfere with the seal.
• Shaft Condition: Re-evaluate the shaft condition. If the damage was too severe or extended beyond the sleeve's coverage, a leak may persist.

8. Specifications

9. Warranty and Support

For information regarding product warranty, technical support, or any questions not covered in this manual, please contact National customer service directly. Refer to the official National website or product packaging for the most current contact information.

National Customer Service: Please visit www.nationalseal.com or refer to your product packaging for support contact details.