BLACK+DECKER 74-591 Jig Saw Blade for SC500 Navigator Saw Instruction Manual

1. Product Overview

The BLACK+DECKER 74-591 is an Original Equipment Manufacturer (OEM) authorized large wood cutting jig saw blade. This blade is specifically designed for use with the BLACK+DECKER SC500 Navigator powered handsaw/jigsaw. It is suitable for various wood and plastic cutting applications, providing efficient and precise cuts.

Image: The BLACK+DECKER 74-591 Jig Saw Blade, a large wood cutting blade.

2. Safety Information

Always prioritize safety when working with power tools and accessories. Failure to follow these safety guidelines may result in serious injury.

• Personal Protective Equipment (PPE): Always wear appropriate PPE, including safety glasses, hearing protection, and work gloves, when operating the SC500 Navigator saw or handling blades.
• Power Disconnection: Ensure the BLACK+DECKER SC500 Navigator saw is unplugged from the power source or its battery pack is removed before attempting to install, remove, or inspect the blade.
• Blade Handling: Jig saw blades are sharp. Handle the 74-591 blade with care to prevent cuts. Avoid touching the teeth.
• Correct Blade Usage: Use only blades that are compatible with your specific power tool model. The 74-591 blade is designed for the BLACK+DECKER SC500 Navigator saw.
• Workpiece Security: Always secure your workpiece firmly before cutting to prevent movement and kickback.

3. Setup and Installation

Follow these steps to safely install the 74-591 jig saw blade into your BLACK+DECKER SC500 Navigator saw:

1. Disconnect Power: Ensure the SC500 Navigator saw is unplugged or its battery pack is removed to prevent accidental startup.
2. Access Blade Clamp: Locate the blade clamp mechanism on your SC500 Navigator saw. Refer to your saw's instruction manual for specific details on how to open and close the blade clamp.
3. Open Clamp: Open the blade clamp. This typically involves pressing a release button, lifting a lever, or loosening a screw, depending on your saw model.
4. Insert Blade: Carefully insert the shank of the 74-591 jig saw blade into the blade clamp. Ensure the blade is fully seated and oriented correctly, with the teeth facing forward (towards the front of the saw).
5. Secure Clamp: Securely close the blade clamp. Verify that the blade is firmly held and does not wobble or move freely.
6. Verify Installation: Gently pull on the blade to confirm it is locked in place before reconnecting power or battery.

4. Operating Instructions

Once the 74-591 blade is securely installed, follow these general operating guidelines for effective and safe cutting:

1. Preparation: Ensure the blade is correctly installed and secure. Mark your cutting line clearly on the workpiece.
2. Positioning: Place the saw's shoe (base plate) flat against the workpiece before starting the saw. Do not allow the blade to touch the workpiece before the saw is turned on.
3. Starting the Cut: Start the saw and allow the blade to reach full speed before engaging the material.
4. Guiding the Saw: Guide the saw along the marked line with steady, even pressure. Avoid forcing the saw; let the blade do the work. Forcing the saw can lead to blade deflection, breakage, or poor cut quality.
5. Curved Cuts: The 74-591 blade is designed for curved cutting in wood. Apply gentle pressure and follow the curve smoothly.
6. Finishing the Cut: When the cut is complete, release the trigger and allow the blade to stop completely before lifting the saw from the workpiece.

5. Maintenance

Proper maintenance of your 74-591 jig saw blade ensures optimal performance and extends its lifespan:

• Inspection: Regularly inspect the blade for signs of wear, damage, or dullness. A dull blade will cut less efficiently and can put undue strain on your saw.
• Replacement: Replace the blade when it becomes dull, bent, or damaged. Continuing to use a compromised blade can lead to poor cut quality and potential safety hazards.
• Cleaning: After each use, clean the blade to remove sawdust, resin, or other debris. Use a stiff brush or a suitable blade cleaner. Ensure the blade is dry before storage.
• Storage: Store blades in a dry, safe location, preferably in their original packaging or a blade case, to prevent rust and accidental injury.

6. Troubleshooting

If you encounter issues while using your 74-591 jig saw blade, consider the following:

• Blade not cutting efficiently:
  Possible Cause: The blade is dull or damaged.
  Solution: Replace the blade with a new BLACK+DECKER 74-591 blade.
• Blade wobbles or comes loose during operation:
  Possible Cause: The blade is not correctly inserted or the blade clamp on the saw is not securely tightened.
  Solution: Disconnect power, remove the blade, and re-insert it, ensuring it is fully seated and the clamp is securely fastened. Refer to your SC500 Navigator saw's manual for specific blade clamp adjustment instructions.
• Excessive vibration during cutting:
  Possible Cause: The blade may be bent, damaged, or not fully seated in the clamp.
  Solution: Disconnect power and inspect the blade for damage. Replace if necessary. Ensure the blade is fully and correctly seated in the blade clamp.

7. Specifications

8. Warranty and Support

For detailed warranty information regarding your BLACK+DECKER 74-591 Jig Saw Blade or for technical support, please refer to the documentation provided with your BLACK+DECKER SC500 Navigator saw. You may also visit the official BLACK+DECKER website for further assistance and product information.