1. Introduction
This instruction manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your Central Pneumatic 42 in. Long Reach Air Scraper. Please read this manual thoroughly before using the tool and retain it for future reference. This pneumatic scraper is designed for efficient removal of materials such as carpet glue, linoleum, and tiles from various surfaces.
2. Safety Information
WARNING: Always follow basic safety precautions to reduce the risk of personal injury and damage to the tool.
- Personal Protective Equipment (PPE): Always wear ANSI-approved safety goggles, hearing protection, and heavy-duty work gloves during operation.
- Air Supply: Ensure the air compressor is capable of providing 90 PSI at 10 CFM. Do not exceed the maximum working pressure of 90 PSI. Use a clean, dry, regulated air supply.
- Secure Workpiece: Always secure the material being worked on to prevent movement during scraping.
- Sharp Blade: The scraper blade is sharp. Handle with extreme care to prevent cuts. Disconnect air supply before changing or inspecting the blade.
- Maintain Control: Keep a firm grip on the tool. Be aware of kickback or sudden movements, especially when encountering resistant materials.
- Clear Work Area: Keep the work area clean, well-lit, and free of obstructions. Keep bystanders and children away.
- Inspect Tool: Before each use, inspect the tool for any damage, loose parts, or air leaks. Do not use a damaged tool.
- Proper Ventilation: Ensure adequate ventilation when working with materials that may release dust or fumes.
3. Product Overview
The Central Pneumatic 42 in. Long Reach Air Scraper is designed for efficient material removal with its powerful pneumatic action and extended reach. Key features include a 4-inch wide blade, a comfortable paddle trigger, and a cushion grip for enhanced control.

Figure 1: Central Pneumatic 42 in. Long Reach Air Scraper. This image shows the full length of the red-colored air scraper, featuring a black cushion grip in the middle, a paddle trigger at the top, and a 4-inch wide black scraper blade at the bottom.
Components:
- Paddle Trigger: Activates the pneumatic action.
- Cushion Grip: Provides comfortable and secure handling.
- Long Reach Shaft: Extends the tool's reach for floor-level work without excessive bending.
- Air Inlet: Connection point for the air hose.
- Locking Collar Bit Retention: Secures the scraper blade.
- 4 in. Wide Scraper Blade: The primary working component for material removal.
4. Specifications
| Specification | Value |
|---|---|
| Product Dimensions | 42"L x 4"W |
| Blade Width | 4 inches |
| Blows Per Minute (BPM) | 2100 BPM |
| Air Consumption | 10 CFM @ 90 PSI |
| Working Pressure | 90 PSI |
| Material (Handle/Casing) | Nylon |
| Exterior Finish | Rubber/PVC Coating |
| Color | Red |
| Bit Retention | Locking Collar |
| Manufacturer | Central Pneumatic |
5. Setup
- Unpacking: Carefully remove the air scraper and any accessories from its packaging. Inspect for any shipping damage.
- Air Supply Connection: Ensure your air compressor is off and the air line is depressurized. Connect a suitable air hose (minimum 3/8 inch inner diameter recommended) to the air inlet of the scraper. Use thread sealant tape on the air inlet threads for a secure, leak-free connection.
- Regulator and Lubricator: It is highly recommended to use an in-line air filter/regulator/lubricator unit. Set the air regulator to 90 PSI. Add a few drops of pneumatic tool oil to the air inlet if an automatic lubricator is not used.
- Blade Installation: With the air supply disconnected, pull back the locking collar on the tool's head. Insert the shank of the 4-inch scraper blade into the tool until it seats firmly. Release the locking collar to secure the blade. Gently tug on the blade to ensure it is locked in place.
- Initial Air Test: Connect the air supply and slowly turn on the compressor. Check all connections for air leaks using soapy water. If leaks are present, tighten connections or reapply thread sealant.
6. Operation
Once the air scraper is properly set up and safety precautions are observed, you can begin operation.
- Grip: Hold the long reach air scraper firmly with both hands, utilizing the cushion grip for stability and control.
- Positioning: Position the 4-inch wide scraper blade against the material you intend to remove. Angle the blade slightly to allow it to get under the material.
- Activation: Press the paddle trigger to activate the pneumatic action. The tool will begin to deliver up to 2100 BPM, rapidly chipping away at the material.
- Scraping Technique: Apply steady, even pressure. Guide the tool across the surface, allowing the pneumatic action to do the work. Avoid forcing the tool, as this can reduce efficiency and potentially damage the blade or surface.
- Material Removal: For carpet glue, linoleum, or tiles, work in small sections, gradually removing layers. The long reach design helps maintain an ergonomic posture during extended use.
- Deactivation: Release the paddle trigger to stop the pneumatic action.
Note: Always disconnect the air supply when not in use or before performing any adjustments or maintenance.
7. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your air scraper.
- Lubrication: If not using an automatic lubricator, add 5-10 drops of high-quality pneumatic tool oil into the air inlet before each use and after every hour of continuous operation. This lubricates internal components.
- Cleaning: After each use, wipe down the exterior of the tool with a clean, dry cloth. Remove any debris or material residue from the blade and tool head.
- Blade Inspection and Replacement: Regularly inspect the scraper blade for wear, dullness, or damage. A dull blade will reduce efficiency and increase effort. Replace worn or damaged blades promptly. Refer to Section 5 for blade installation.
- Air Filter: Periodically check and clean or replace the air filter in your air compressor or in-line filter unit to ensure a clean air supply to the tool.
- Storage: Store the air scraper in a clean, dry environment, away from direct sunlight and extreme temperatures. Disconnect it from the air supply.
8. Troubleshooting
This section addresses common issues you might encounter with your air scraper.
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool not operating or low power | Low air pressure; Insufficient air volume (CFM); Air leaks; Lack of lubrication; Obstructed air inlet. | Check air compressor pressure and ensure it's set to 90 PSI. Verify compressor can deliver 10 CFM. Check all air connections for leaks. Add pneumatic tool oil. Clear any obstructions from the air inlet. |
| Blade not moving or stuck | Blade improperly installed; Internal mechanism jammed; Excessive wear. | Ensure blade is fully seated and locking collar is engaged. Disconnect air, inspect for debris in the bit retention area. If issue persists, contact customer support. |
| Excessive air leakage | Loose air fittings; Damaged O-rings or seals. | Tighten all air hose connections. Inspect O-rings and seals for wear or damage and replace if necessary. |
| Tool runs hot | Lack of lubrication; Continuous heavy use. | Ensure proper lubrication. Allow the tool to cool down during extended periods of use. |
9. Warranty and Support
Central Pneumatic products are manufactured to high-quality standards. For warranty information, technical support, or replacement parts, please refer to the documentation included with your purchase or contact Central Pneumatic customer service directly. Keep your purchase receipt as proof of purchase.





