Introduction
This manual provides essential instructions for the safe operation, maintenance, and setup of your SKIL 5280-01 15 Amp 7-1/4 Inch Circular Saw. Please read this manual thoroughly before using the tool to ensure proper function and to prevent injury.
The SKIL 5280-01 circular saw is designed for cutting lumber and sheet goods. It features a powerful 15-Amp motor, a single-beam laser guide for enhanced accuracy, and an integrated dust blower to maintain a clear line of cut. The saw also offers a 51-degree bevel capacity with a positive stop at 45 degrees for versatile cutting options, and a spindle lock for convenient blade changes.

Figure 1: The SKIL 5280-01 Circular Saw, showcasing its design and key features including the laser guide.
Safety Information
Always follow basic safety precautions to reduce the risk of fire, electric shock, and personal injury. Keep your work area clean and well-lit. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. Keep children and bystanders away while operating a power tool.
- Personal Safety: Always wear eye protection, hearing protection, and a dust mask. Dress properly; avoid loose clothing or jewelry.
- Electrical Safety: Ensure the power cord is undamaged. Do not expose power tools to rain or wet conditions.
- Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. Disconnect the plug from the power source before making any adjustments, changing accessories, or storing power tools.
- Laser Safety: The saw is equipped with a Class 2 laser. Do not stare directly into the laser beam.
Package Contents
- SKIL 5280-01 Circular Saw
- 7-1/4 Inch 24-Tooth Carbide-Tipped Blade
- Blade Wrench
- Carry Bag

Figure 2: The SKIL 5280-01 Circular Saw packaged with its carry bag and blade. This image shows the saw and its primary accessories as they appear when unboxed.
Setup
1. Blade Installation
- Ensure the saw is unplugged from the power source.
- Press and hold the spindle lock button.
- Use the included blade wrench to loosen the arbor nut by turning it counter-clockwise.
- Remove the outer blade washer and old blade (if applicable).
- Place the new 7-1/4 inch carbide-tipped blade onto the arbor, ensuring the teeth are pointing in the direction of the arrow on the blade guard.
- Replace the outer blade washer and arbor nut. Tighten the arbor nut securely with the blade wrench while holding the spindle lock.
2. Adjusting Cutting Depth
For optimal performance and safety, adjust the cutting depth so that the blade extends approximately 1/8 inch (3 mm) below the material being cut.
- Loosen the depth adjustment lever.
- Raise or lower the saw base to achieve the desired cutting depth.
- Tighten the depth adjustment lever firmly.
3. Adjusting Bevel Angle
The saw allows for bevel cuts up to 51 degrees, with a positive stop at 45 degrees.
- Loosen the bevel adjustment knob.
- Tilt the saw base to the desired angle, aligning the indicator with the angle scale.
- Tighten the bevel adjustment knob securely.

Figure 3: Close-up view of the saw's bevel adjustment, showing the scale and locking mechanism. This allows for precise angle cuts up to 51 degrees.
Operating Instructions
1. Powering On/Off
The saw features a safety lock/guarded trigger to prevent accidental starts.
- To start the saw, press the safety lock button, then squeeze the trigger switch.
- To stop the saw, release the trigger switch.

Figure 4: Detail of the safety lock button and guarded trigger on the saw handle. This mechanism ensures the saw is not accidentally activated.

Figure 5: The power-on indicator light, located near the handle, illuminates when the saw is connected to power, providing a visual safety cue.
2. Using the Laser Guide
The single-beam laser guide projects a line onto your workpiece, assisting in maintaining a straight cut.
- Ensure the laser is clean and unobstructed.
- Align the projected laser line with your desired cut line on the material.
- Maintain a steady hand and follow the laser line during the cut.

Figure 6: The single-beam laser guide projecting a red line onto a workpiece, demonstrating its function for accurate cutting. The user is guiding the saw along the laser line.
3. Dust Blower Function
The integrated dust blower directs air towards the cutting line, keeping it clear of sawdust for improved visibility.

Figure 7: A close-up of the saw's base, highlighting the dust blower outlet designed to clear sawdust from the cutting path.
Maintenance
Regular maintenance ensures the longevity and safe operation of your circular saw.
- Cleaning: Keep the tool's ventilation openings clean and free of debris. Use a soft brush or compressed air to remove sawdust. Do not use flammable liquids to clean the tool.
- Blade Inspection: Regularly inspect the blade for sharpness, cracks, or missing teeth. Replace dull or damaged blades immediately.
- Cord Inspection: Check the power cord for any signs of damage, cuts, or fraying. If damaged, have it repaired by a qualified service technician.
- Laser Lens: Keep the laser lens clean for optimal visibility of the laser line. Use a soft, damp cloth to wipe it gently.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Saw does not start | No power supply; Safety lock not engaged; Damaged cord/switch | Check power connection; Ensure safety lock is pressed before trigger; Inspect cord and switch, seek professional repair if damaged. |
| Blade binds or smokes | Dull blade; Incorrect cutting depth; Forcing the saw; Material pinching blade | Replace blade; Adjust cutting depth; Reduce feed pressure; Support workpiece properly to prevent pinching. |
| Inaccurate cuts | Blade not square to base; Laser misaligned; Improper technique | Check and adjust blade squareness; Clean laser lens; Practice proper cutting technique, use a guide. |
| Excessive vibration | Damaged or unbalanced blade; Loose components | Replace blade; Check all fasteners and tighten if necessary. |
Specifications
- Model: SKIL 5280-01
- Motor: 15 Amp
- No-Load Speed: 5,300 RPM
- Blade Diameter: 7-1/4 inches
- Blade Teeth: 24 (Carbide-Tipped)
- Bevel Capacity: 0-51 degrees (Positive stop at 45 degrees)
- Laser Type: Single Beam, Class 2 (powered by 1 Lithium Ion battery, not user-replaceable)
- Weight: 8.7 lbs (3.95 kg)
- Product Dimensions (approx.): 14.2 x 9.8 x 8.5 inches (36.1 x 24.9 x 21.6 cm)
- Power Source: Corded Electric
- UPC: 039725041159
Warranty Information
Specific warranty details for the SKIL 5280-01 Circular Saw are not provided within this document. For comprehensive warranty information, including terms, conditions, and registration, please refer to the official SKIL website or the warranty card included with your product packaging.
Customer Support
If you require assistance, have questions about your SKIL 5280-01 Circular Saw, or need to order replacement parts, please contact SKIL customer support. Contact information can typically be found on the official SKIL website or on the product packaging.
Online Resources: Visit the official SKIL website for FAQs, product registration, and additional support materials.





