Product Overview
The NuMax SFR2190 Pneumatic 21 Degree 3-1/2" Framing Nailer is designed for heavy-duty construction applications such as framing, subfloors, roof decking, pallet and shipping crate assembly, and wood fencing. This durable air-powered tool features an anti-dry-fire mechanism, dual-mode trigger, tool-free depth adjustment, and a comfort grip handle for extended use.
Image: NuMax SFR2190 Pneumatic 21 Degree 3-1/2" Framing Nailer, showing its overall design.
Safety Information
Always wear safety glasses and hearing protection when operating the nailer. Disconnect the air supply before performing any adjustments, maintenance, or when clearing jams. Never point the tool at yourself or others. Ensure the work area is clear of obstructions and bystanders.
Setup
1. Connecting to Air Supply
Ensure your air compressor is set to the recommended operating pressure (70-120 PSI). Connect the air hose to the nailer's air inlet. It is recommended to add 2-3 drops of pneumatic tool oil into the air inlet before connecting the air hose to lubricate internal components.
Video: Demonstrates connecting the air hose and adding oil to the NuMax SFR2190 nailer.
2. Loading Nails
Pull back the magazine follower until it locks. Insert a strip of 21-degree plastic collated full round head framing nails (2" – 3-1/2" L, 0.113" – 0.131" diameter) into the magazine, ensuring the nail points are facing down. Release the magazine follower to secure the nails.
Image: A user loading a strip of 21-degree collated nails into the magazine of the NuMax SFR2190 nailer.
Video: A detailed demonstration of how to properly load 21-degree framing nails into the NuMax SFR2190 nailer, emphasizing correct nail orientation.
Operating Instructions
1. Firing Mechanism
The NuMax SFR2190 features a dual-mode trigger, allowing for both single sequential firing (for precision) and bump firing (for speed). To fire, press the contact tip firmly against the workpiece and then pull the trigger. The tool will not fire if the contact tip is not engaged.
Image: A user operating the NuMax SFR2190 nailer to fasten wood framing, demonstrating proper handling.
2. Depth Adjustment
Adjust the driving depth of nails using the tool-free depth adjustment wheel. Turn the wheel by hand to achieve the desired nail depth for various projects and materials. This feature helps prevent damage to the work surface and ensures professional results.
Image: Close-up view of the tool-free depth adjustment wheel on the NuMax SFR2190 nailer.
3. Adjustable Exhaust
The 360-degree adjustable exhaust allows you to conveniently direct air away from your face and the work area, improving comfort and visibility during operation.
Image: Detail of the 360-degree adjustable exhaust on the NuMax SFR2190 nailer.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your NuMax SFR2190 nailer. Always disconnect the air supply before performing any maintenance.
1. Oiling
Add 2-3 drops of pneumatic tool oil to the air inlet daily or before each use, especially during prolonged operation. This lubricates the internal components and prevents wear.
2. Cleaning
Keep the tool clean and free of debris. Regularly inspect the contact tip and magazine for any build-up that might hinder operation. Use a clean, dry cloth to wipe down the tool.
Troubleshooting
For common issues such as nails jamming or misfiring, refer to the comprehensive Troubleshooting Guide (PDF). Ensure nails are loaded correctly (points down) and that the air pressure is within the recommended range.
Video: A customer's experience with the nailer jamming, showing two nails stuck in the mechanism. This highlights the importance of proper loading and maintenance.
Specifications
| Feature | Detail |
|---|---|
| Brand | NuMax |
| Model Number | SFR2190 |
| Item Weight | 8.58 pounds |
| Product Dimensions | 5.51 x 14.17 x 20.08 inches |
| Power Source | Air-powered |
| Compatible Nails | 21 degree plastic collated full round head framing nails from 2" – 3-1/2" L and 0.113" – 0.131" diameter |
| Special Features | Adjustable depth, 360-degree adjustable exhaust, anti-dry-fire mechanism, dual-mode trigger, comfort grip handle |
Warranty and Support
The NuMax SFR2190 is covered by NuMax's 1 Year Limited Warranty and 30 Day Wearable Parts Warranty. For detailed warranty information or further assistance, please refer to the official User Manual (PDF) or visit the NuMax Store on Amazon.
