1. Introduction
Thank you for choosing the SKIL 5255 AA Circular Saw. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your tool. Please read these instructions carefully before use and keep them for future reference.
The SKIL 5255 AA is a powerful circular saw designed for various cutting tasks in wood and similar materials. It features a 1150 Watt motor, a maximum cutting depth of 55 mm, a clear cut-line indicator for precise cuts, and an integrated spindle lock for easy blade changes.
2. General Safety Instructions
WARNING: Read all safety warnings, instructions, illustrations, and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious injury.
- Work Area Safety: Keep your work area clean and well-lit. Cluttered or dark areas invite accidents. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust.
- Electrical Safety: Power tool plugs must match the outlet. Never modify the plug in any way. Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges, and refrigerators.
- Personal Safety: Always wear eye protection. Use hearing protection when operating power tools. Wear a dust mask if operations create dust. Dress properly; do not wear loose clothing or jewelry. Keep hair and clothing away from moving parts.
- Power 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 and/or remove the battery pack, if detachable, from the power tool before making any adjustments, changing accessories, or storing power tools.
- Circular Saw Specific Safety: Keep hands away from the cutting area and the blade. Do not reach underneath the workpiece. Ensure the blade guard is functioning correctly before each use. Always hold the tool firmly with both hands.
3. Setup
3.1 Unpacking
Carefully remove the circular saw and all accessories from the packaging. Inspect the tool for any damage that may have occurred during transit. Retain the packaging for future storage or transport.
3.2 Blade Installation and Replacement
WARNING: Always disconnect the saw from the power supply before changing the blade.
- Locate the integrated key storage on the saw for the blade wrench.
- Press and hold the spindle lock button to prevent the blade from rotating.
- Use the blade wrench to loosen the blade retaining bolt by turning it counter-clockwise.
- Remove the outer flange and the old blade.
- Clean the inner and outer flanges. Place the new blade onto the spindle, ensuring the rotation direction arrows on the blade match the arrow on the saw's guard.
- Replace the outer flange and tighten the blade retaining bolt clockwise with the wrench while holding the spindle lock button. Do not overtighten.

Image: The SKIL 5255 AA Circular Saw with its blade and guards visible, ready for operation.
3.3 Adjusting Cutting Depth
The cutting depth can be adjusted to match the thickness of your workpiece. Loosen the depth adjustment lever, move the base plate up or down to the desired depth indicated on the scale, and then securely tighten the lever.
3.4 Adjusting Bevel Angle
For angled cuts, the bevel angle can be adjusted. Loosen the bevel adjustment knob, tilt the saw base to the desired angle (up to 45 degrees), and then tighten the knob firmly.

Image: A user adjusting the bevel angle of the SKIL 5255 AA Circular Saw, demonstrating the tilting mechanism.
4. Operating Instructions
WARNING: Always ensure the workpiece is securely clamped or supported before cutting.
4.1 Starting and Stopping
- To start the saw, press the safety lock-off button (if present) and then squeeze the trigger switch.
- To stop the saw, release the trigger switch. Allow the blade to come to a complete stop before setting the tool down.
4.2 Making a Cut
- Mark your desired cut line on the workpiece.
- Position the saw with the front edge of the base plate resting on the workpiece. Align the cut-line indicator with your marked line.
- Start the saw and allow the blade to reach full speed before engaging the material.
- Slowly and steadily push the saw forward through the material, maintaining a firm grip with both hands. Do not force the saw; let the blade do the work.
- Once the cut is complete, release the trigger and allow the blade to stop before removing the saw from the workpiece.

Image: A user operating the SKIL 5255 AA Circular Saw to make a straight cut on a wooden board, demonstrating proper handling.

Image: A close-up view of the SKIL 5255 AA Circular Saw's transparent cut-line indicator, showing its alignment with a marked line on wood.
5. Maintenance
Regular maintenance ensures the longevity and safe operation of your SKIL 5255 AA Circular Saw.
5.1 Cleaning
- Always disconnect the tool from the power supply before cleaning.
- Clean the ventilation openings regularly to prevent motor overheating. Use a soft brush or compressed air.
- Wipe the tool housing with a damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Keep the blade guard clean and free of sawdust to ensure smooth operation.
5.2 Blade Inspection
Regularly inspect the saw blade for sharpness, damage, or missing teeth. A dull or damaged blade can cause kickback and poor cut quality. Replace worn blades promptly.
5.3 Storage
Store the circular saw in a dry, secure location out of reach of children. Protect it from moisture and extreme temperatures.
6. Troubleshooting
If you encounter issues with your SKIL 5255 AA Circular Saw, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Saw does not start | No power supply; Faulty switch; Damaged power cord | Check power connection; Contact qualified service personnel for switch/cord replacement. |
| Poor cut quality / Excessive vibration | Dull or damaged blade; Incorrect blade installation; Loose blade bolt | Replace blade; Ensure blade is installed correctly with rotation direction matching; Tighten blade bolt securely. |
| Saw overheats | Blocked ventilation slots; Overloading the motor | Clean ventilation slots; Reduce cutting pressure; Allow tool to cool. |
| Blade guard sticks | Sawdust buildup; Damaged guard mechanism | Clean guard thoroughly; If damaged, seek professional repair. |
For problems not listed here or if solutions do not resolve the issue, please contact SKIL customer support or an authorized service center.
7. Specifications
The following are the technical specifications for the SKIL 5255 AA Circular Saw:
| Feature | Specification |
|---|---|
| Brand | SKIL |
| Model Number | F0155255AA |
| Nominal Input Power | 1150 W |
| Voltage | 240 V |
| No-load Speed | 5000 rpm |
| Blade Diameter | 170 mm |
| Arbor Diameter | 16 mm |
| Max. Cutting Depth at 90° | 55 mm |
| Max. Cutting Depth at 45° | 38 mm |
| Weight | 3.5 kg |
| Sound Level | 108 Decibel |
| Special Features | Spindle lock, Cut-line indicator |
8. Warranty Information
SKIL products are manufactured to high-quality standards. For detailed information regarding the warranty period and conditions for your SKIL 5255 AA Circular Saw, please refer to the warranty card included with your purchase or visit the official SKIL website. Keep your proof of purchase for any warranty claims.
9. Support
For further assistance, technical support, or to locate an authorized service center, please visit the official SKIL website or contact their customer service department. Contact information can typically be found on the SKIL website or in the documentation provided with your tool.





