Chicago Pneumatics CP875 90 Degree Angled Die Grinder User Manual

1. Introduction

This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your Chicago Pneumatics CP875 90 Degree Angled Die Grinder. Please read this manual thoroughly before using the tool to ensure proper handling and to prevent injury or damage.

The CP875 series is engineered for general maintenance tasks, particularly in confined spaces. It features an integrated pneumatic regulator and delivers 0.3 horsepower (220 W) for high-speed grinding applications. Its compact and lightweight design ensures exceptional maneuverability.

Key Features:

• Speed and Power: Delivers 0.3 HP / 220 W with a maximum speed of 22500 RPM, ensuring efficient grinding and polishing for quick task completion.
• Ergonomics: Lightweight and compact 90 Degree angle head design with a comfortable grip, reducing user fatigue and allowing for extended use without discomfort in tight areas.
• Safety: Features a built-in safety throttle lever to prevent accidental start-ups, providing peace of mind and enhanced user protection.
• Applications: Ideal for grinding, polishing, porting, and deburring, making it perfect for automotive, metalworking, and DIY projects.
• General Specifications: 1/4 inch (6 mm) collet, 0.3 HP / 220 W motor, 22500 RPM, rear exhaust, durable aluminum housing for long-lasting performance.

2. Safety Information

Always observe basic safety precautions to reduce the risk of fire, electric shock, and personal injury when using power tools. Read all instructions before operating this product.

General Safety Guidelines:

• Personal Protective Equipment (PPE): Always wear appropriate eye protection (safety glasses or goggles), hearing protection, and gloves when operating the die grinder.
• Work Area: Keep your work area clean, well-lit, and free of clutter. Ensure adequate ventilation, especially when grinding materials that produce dust or fumes.
• Tool Condition: Before each use, inspect the tool for any damage, loose parts, or wear. Do not operate a damaged tool.
• Air Supply: Ensure the air supply is clean, dry, and at the correct pressure (refer to Specifications section). Disconnect the air supply before changing accessories, performing maintenance, or when the tool is not in use.
• Accessories: Use only accessories designed for die grinders and ensure they are rated for the tool's maximum RPM. Securely fasten all accessories before operation.
• Stability: Maintain a firm grip on the tool and ensure stable footing during operation.
• Safety Throttle Lever: The CP875 features a built-in safety throttle lever. This mechanism prevents accidental start-ups. Always engage the safety before connecting to air or when handling the tool.

Figure 2.1: Side view of the CP875 die grinder, highlighting the warning label regarding safe operation and the safety throttle lever.

3. Package Contents

Upon opening the package, verify that all components are present and undamaged. If any items are missing or damaged, contact your supplier immediately.

• Chicago Pneumatics CP875 Air Angle Die Grinder
• Wrench Spanner

4. Product Features and Components

Familiarize yourself with the various parts and features of your CP875 die grinder for optimal use and maintenance.

Figure 4.1: Overview of the Chicago Pneumatics CP875 90 Degree Angled Die Grinder.

Figure 4.2: Key performance features of the CP875, including its power output, maximum rotational speed, and the integrated safety throttle lever.

Figure 4.3: Physical specifications of the CP875, detailing its length, weight, and the included collet sizes (1/4 inch and 6 mm).

5. Setup

5.1 Air Supply Connection

1. Ensure your air compressor is capable of providing the required air pressure and volume (refer to Specifications).
2. Install an air filter/regulator/lubricator (FRL) unit in your air line, as this is crucial for the longevity and performance of pneumatic tools.
3. Connect a suitable air hose (minimum 3/8 inch I.D. recommended) to the tool's air inlet. Use thread sealant tape on all threaded connections to prevent air leaks.
4. Set the air pressure at the regulator to the recommended operating pressure (typically 90 PSI / 6.2 Bar).
5. Before connecting the tool, ensure the safety throttle lever is engaged to prevent accidental start-up.

5.2 Installing Accessories

1. Disconnect the tool from the air supply before installing or changing accessories.
2. Insert the shank of the grinding bit or accessory into the collet.
3. Using the provided wrench spanner, tighten the collet nut securely. Ensure the accessory is firmly seated and centered to prevent vibration and potential injury.
4. Never operate the tool with a loose or improperly installed accessory.

6. Operating Instructions

6.1 Starting and Stopping the Tool

1. Ensure all safety precautions are followed and PPE is worn.
2. Connect the tool to the air supply.
3. To start the tool, disengage the safety throttle lever and depress the trigger.
4. To stop the tool, release the trigger and engage the safety throttle lever.
5. Always disconnect the air supply when finished with the tool or before any adjustments.

6.2 Grinding and Polishing

The CP875 is ideal for a variety of applications including grinding, polishing, porting, and deburring in automotive, metalworking, and DIY projects.

• Apply light, even pressure to the workpiece. Avoid excessive force, which can reduce tool life and accessory performance.
• Move the tool smoothly across the surface to achieve a consistent finish.
• For optimal results, use the appropriate grinding or polishing accessory for the material and task.

Figure 6.1: The CP875 die grinder in action, demonstrating its use in metalworking applications.

7. Maintenance

Regular maintenance ensures the longevity and optimal performance of your CP875 die grinder.

7.1 Daily Maintenance

• Lubrication: Add a few drops of pneumatic tool oil into the air inlet before and after each use, or if the tool has been stored for an extended period. This lubricates internal components.
• Cleanliness: Wipe down the tool with a clean cloth to remove dust and debris. Keep the air inlet free from obstructions.

7.2 Periodic Maintenance

• Air Filter: Regularly check and clean or replace the air filter in your FRL unit to ensure a clean air supply to the tool.
• Collet Inspection: Inspect the collet and collet nut for wear or damage. Replace if necessary to ensure proper accessory retention.
• Air Hose: Check the air hose for kinks, cuts, or leaks. Replace damaged hoses immediately.

For any complex repairs or internal servicing, it is recommended to contact an authorized service center.

8. Troubleshooting

This section addresses common issues you might encounter with your CP875 die grinder. For problems not listed here, contact customer support.

9. Specifications

10. Warranty and Support

10.1 Warranty Information

The Chicago Pneumatics CP875 90 Degree Angled Die Grinder comes with a 1-Year Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from misuse, abuse, unauthorized repairs, or normal wear and tear.

Please retain your proof of purchase for warranty claims.

10.2 Customer Support

For technical assistance, parts, or warranty service, please contact Chicago Pneumatic customer support or visit their official website.

You can also visit the official Chicago Pneumatic store on Amazon for more information and products: Chicago Pneumatic Store