1. Introduction and Product Overview
This manual provides comprehensive instructions for the safe and effective operation, maintenance, and troubleshooting of your Sealey SMS255 Double Sliding Compound Mitre Saw 250mm. Please read this manual thoroughly before initial use and retain it for future reference.
The Sealey SMS255 is a powerful 1800W compound mitre saw designed for precise cutting of wood and other specified materials. It features double slides for enhanced control, a 60-tooth TCT blade, and integrated work piece supports. For improved accuracy, the unit is equipped with an LED work light and a laser guide.
Figure 1.1: Overview of the Sealey SMS255 Double Sliding Compound Mitre Saw.
This image displays the complete Sealey SMS255 Double Sliding Compound Mitre Saw from a front-left perspective, showcasing its main components including the motor housing, blade guard, cutting table, and sliding rails.
2. Safety Information
Always prioritize safety when operating power tools. Failure to follow these instructions may result in serious injury or damage to the tool.
- Read the Manual: Understand all instructions and warnings before operation.
- Personal Protective Equipment (PPE): Always wear safety glasses, hearing protection, and a dust mask.
- Work Area: Keep the work area clean, well-lit, and free from obstructions. Ensure adequate ventilation.
- Electrical Safety: Ensure the power supply matches the tool's requirements (230V). Do not operate in damp or wet conditions.
- Blade Safety: Ensure the blade is correctly installed and sharp. Never attempt to remove jammed material while the saw is running.
- Secure Workpiece: Always clamp the workpiece firmly before cutting to prevent movement.
- Maintain Control: Keep hands clear of the blade path. Use both hands to operate the saw when possible.
- Unplug When Not In Use: Disconnect the saw from the power supply before making adjustments, changing blades, or performing maintenance.
3. Components and Assembly
The Sealey SMS255 comes with essential components for immediate use and convenience.
Included Components:
- Workpiece Clamp
- Dust Extraction Bag
- Carry Handle
- 60-tooth TCT Blade (pre-installed)
Initial Setup:
- Unpacking: Carefully remove the saw and all components from the packaging. Inspect for any shipping damage.
- Positioning: Place the saw on a stable, level workbench or stand. Ensure sufficient space for workpiece movement and safe operation.
- Attach Workpiece Clamp: Secure the workpiece clamp to the saw table as shown in Figure 3.1. This clamp is crucial for holding material securely during cuts.
- Install Dust Bag: Connect the dust extraction bag to the dust port. For optimal dust collection, consider connecting to an external dust extraction system.
- Power Connection: Connect the saw to a suitable 230V power outlet.
Figure 3.1: Workpiece clamp in use.
This image shows a close-up of the workpiece clamp holding a piece of wood firmly against the saw's fence, demonstrating its function in securing material for accurate and safe cutting.
4. Operating Instructions
Follow these steps for safe and effective operation of your mitre saw.
- Material Preparation: Ensure the workpiece is free of nails, screws, or other foreign objects that could damage the blade.
- Adjusting Mitre Angle: Loosen the mitre lock handle and pivot the turntable to the desired angle. The saw features locking increments at 0°, 15°, 22.5°, 30°, and 45° Left & Right. Securely tighten the handle.
- Adjusting Bevel Angle: For bevel cuts, adjust the saw head tilt to the desired angle (up to 45°). Lock the bevel adjustment securely.
- Positioning Workpiece: Place the workpiece firmly against the fence and secure it with the workpiece clamp. Ensure the cutting line aligns with the laser guide.
- Activating Laser and LED: The integrated laser guide and LED work light can be activated to assist with precise alignment and illumination of the cutting area.
- Making a Cut:
- Hold the saw handle firmly.
- Press the trigger to start the motor and allow the blade to reach full speed.
- Slowly lower the saw head through the workpiece, applying steady, even pressure.
- For wider materials, utilize the double sliding feature by pulling the saw head forward, lowering the blade, and pushing it back through the material. The slides can be locked at different lengths for greater control.
- Once the cut is complete, release the trigger and allow the blade to stop completely before raising the saw head.
Figure 4.1: Saw in operation, cutting wood.
This image captures the Sealey SMS255 mitre saw in action, with the blade descending through a wooden workpiece, illustrating the cutting process.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your saw.
- Disconnect Power: Always unplug the saw before performing any maintenance or cleaning.
- Cleaning: After each use, clean dust and debris from the saw, especially around the blade guard, motor vents, and sliding rails. Use a brush or compressed air.
- Dust Extraction: Regularly empty the dust extraction bag. If using an external system, ensure its filters are clean and connections are secure.
- Blade Inspection: Periodically inspect the blade for sharpness, damage, or missing teeth. A dull blade can cause kickback and poor cut quality.
- Blade Replacement: When replacing the blade, ensure the new blade is compatible (250 x 3.2 x Ø30mm) and installed with the correct rotation direction. Model No. SMS255B multipurpose blade is available for mild steel, aluminium, and wood with nails.
- Lubrication: Keep the sliding rails clean and lightly lubricated to ensure smooth operation.
Figure 5.1: Dust extraction port.
This image provides a close-up view of the dust extraction port on the Sealey SMS255, highlighting the connection point for the dust bag or an external dust collection system.
6. Troubleshooting
This section addresses common issues you might encounter with your mitre saw.
| Problem | Possible Cause | Solution |
|---|---|---|
| Saw does not start. | No power supply; faulty switch; motor overload. | Check power connection and circuit breaker. Ensure switch is fully depressed. Allow motor to cool if overheated. |
| Poor cut quality (rough, splintering). | Dull or incorrect blade; workpiece not secured; incorrect cutting technique. | Replace blade if dull or damaged. Ensure workpiece is clamped firmly. Use steady, even pressure and allow blade to reach full speed. |
| Excessive dust. | Dust bag full or improperly attached; dust port clogged. | Empty dust bag. Check and clear any blockages in the dust port. Ensure dust bag is securely attached. |
| Blade binds or stalls. | Workpiece not supported; dull blade; forcing the cut. | Ensure workpiece is fully supported. Replace dull blade. Do not force the saw; let the blade do the work. |
7. Specifications
Detailed technical specifications for the Sealey SMS255 Double Sliding Compound Mitre Saw.
| Specification | Value |
|---|---|
| Model No. | SMS255 |
| Motor Power | 1800W |
| Supply Voltage | 230V |
| Blade Size | 250 x 3.2 x Ø30mm |
| No Load Speed | 4500rpm |
| Mitre Stop Increments | 0°, 15°, 22.5°, 30°, 45° Left & Right |
| Cross Cut (0° Bevel x 0° Table) | 85 x 310mm |
| Mitre Cut (0° Bevel x 45° Table) | 85 x 215mm |
| Bevel Cut (45° Bevel x 45° Table) | 50 x 215mm |
| Dust Extraction Port (ID/OD) | Ø35/Ø43mm |
| Item Weight | 15.5 kg (34.1 lbs) |
| Product Dimensions (L x W x H) | 460 x 640 x 410 mm (18.11 x 25.2 x 16.14 inches) |
8. Warranty and Support
Your Sealey SMS255 Double Sliding Compound Mitre Saw is covered by a limited warranty. Please refer to the warranty card included with your product for specific terms and conditions.
For technical support, spare parts, or warranty claims, please contact Sealey customer service or your authorized Sealey dealer. Ensure you have your model number (SMS255) and purchase details available when contacting support.
For more information, visit the official Sealey website: www.sealey.co.uk
