CMT ORANGE TOOLS 230.312.08 DADO Set Saw Blade Instruction Manual

1. Introduction and Product Overview

This manual provides detailed instructions for the safe and effective use of your CMT ORANGE TOOLS 230.312.08 DADO Set Saw Blade. This innovative dado set is designed for precision cuts in various materials, including solid wood, laminates, melamines, and veneer plywood.

A key feature of this product is its UNI EN847 COMPLIANCE, making it the first dado set to achieve this standard. This compliance ensures that during rotation, the assembled elements will not come into contact with each other, enhancing safety and performance. This is achieved through a unique blade body design and special 'lock spacers'.

Figure 1.1: The CMT ORANGE TOOLS 230.312.08 Dado Saw Blade, an 8-inch diameter blade with 12 teeth, designed for precision dado cuts.

2. What's in the Box

Upon opening the package, please verify that all components listed below are present and undamaged. If any items are missing or damaged, contact CMT customer support immediately.

• 2 x Outside Blades (1 Left, 1 Right)
• 3 x Chippers (1/8" thickness)
• 3 x Lock Spacers (1/16" thickness)
• 5 x Shims (0.004" thickness)
• 2 x Shims (0.008" thickness)
• 1 x Magnetic Shim (0.012" thickness)
• 1 x Magnetic Shim (0.020" thickness)

Figure 2.1: All components included in the CMT ORANGE TOOLS Dado Set package, showing the two outside blades, three chippers, three lock spacers, and various shims.

3. Setup and Assembly

Proper assembly of the dado set is crucial for safe operation and optimal performance. Always wear appropriate personal protective equipment, including safety glasses and gloves, during assembly and operation.

3.1 Understanding the Components

Figure 3.1: The two outside blades of the dado set, one designed for the left side and one for the right side of the assembly.

Figure 3.2: The three chippers included in the dado set, used to adjust the width of the cut.

3.2 Blade and Shim Interaction (Setting 1)

The unique design of the dado set, combined with the provided shims and lock spacers, ensures that the blades do not contact each other during rotation. This is critical for safety and compliance with UNI EN847 standards. Figure 3.3 illustrates how the shims are used to achieve the desired dado width while maintaining proper blade separation.

Figure 3.3: Diagram showing the 'Before' and 'After' states of blade and shim interaction, demonstrating how the lock spacers prevent blade contact and how shims adjust the cutting width.

3.3 Assembly with Lock Spacers (Setting 2)

Begin assembly by placing the first outside blade onto your saw arbor. Ensure the "THIS SIDE OUT" marking faces outwards. Next, add the appropriate chippers and lock spacers to achieve your desired dado width. The lock spacers (Figure 3.4, labeled 'Lock Spacer') are essential for maintaining the UNI EN847 compliance by ensuring separation between the blades and chippers. The 'Lock Keys' (Figure 3.4, labeled 'Lock Keys') fit into corresponding slots to secure the assembly.

Figure 3.4: Exploded view illustrating the assembly of the outside blade, lock spacer, and lock keys. Note the 'THIS SIDE OUT' marking on the blade.

3.4 Fine-Tuning with Shims (Setting 3)

For micro-thin adjustability of the dado width, utilize the included plastic and magnetic shims. These shims are placed between the chippers and blades to achieve precise cut dimensions. Figure 3.5 provides a visual guide on how these shims integrate into the assembly to fine-tune the cutting width.

Figure 3.5: Detailed view of how shims are positioned within the dado set assembly to achieve precise width adjustments, showing the 'Before' and 'After' states of the blade profile.

3.5 Complete Assembly Overview (Setting 4)

Figure 3.6 provides a comprehensive exploded view of the entire dado set assembly, showing the correct order of components. From left to right, you will typically assemble: Outside Blade (A-B), Chipper(s) (C), Lock Spacer(s) (D), and then any necessary micro-thin adjustment shims (E, F, G-H) before the final outside blade. Always ensure all components are seated correctly and securely before tightening the arbor nut.

Figure 3.6: Exploded diagram showing the full assembly order of the dado set, including outside blades, chippers, lock spacers, and various shims for micro-thin adjustments.

3.6 Set Contents and Spare Parts

For your reference, Figure 3.7 details the exact quantity and type of each component included in your dado set. This information is useful for reordering spare parts or verifying contents.

Figure 3.7: A detailed list of all components included in the CMT Dado Set, specifying quantities and dimensions for each part, including spare part information.

4. Operating Instructions

Always consult your saw's instruction manual for specific safety guidelines and operating procedures before using any dado blade. Ensure the dado set is securely mounted on the arbor and the arbor nut is tightened to the manufacturer's specifications.

• Safety First: Always wear eye protection, hearing protection, and appropriate clothing. Ensure guards are in place and functional.
• Material Compatibility: This dado set is suitable for solid wood, laminates, melamines, and veneer plywood.
• Test Cuts: Always perform test cuts on scrap material to verify the dado width and depth before cutting your final workpiece. Adjust shims as needed for precise fit.
• Feed Rate: Maintain a consistent and appropriate feed rate. Do not force the material through the blade, as this can lead to poor cut quality and increased risk of kickback.
• Dust Collection: Utilize an effective dust collection system to maintain a clear workspace and reduce airborne dust.
• UNI EN847 Compliance: The unique design of this dado set ensures that the assembled elements do not come into contact during rotation, providing an enhanced level of safety.

5. Maintenance

Regular maintenance will extend the life of your CMT dado set and ensure continued optimal performance.

• Cleaning: After each use, clean the blades and chippers to remove resin and sawdust buildup. The ORANGE SHIELD COATING helps protect against heat, gumming, and corrosion, making cleaning easier. Use a specialized blade cleaner.
• Inspection: Regularly inspect the carbide teeth for chips, cracks, or excessive wear. Check the blade body for any signs of damage or warping.
• Sharpening: When the blades become dull, have them professionally sharpened by a qualified service that specializes in carbide-tipped saw blades.
• Storage: Store the dado set in its original packaging or a protective case in a dry environment to prevent corrosion and damage to the teeth.

6. Troubleshooting

If you encounter issues with your dado set, consider the following common problems and solutions:

7. Specifications

8. Warranty and Support

For warranty information, technical support, or to inquire about spare parts, please contact CMT customer service directly. Refer to the official CMT website or your purchase documentation for the most current contact details.

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