Performance Tool M668 Heavy Duty Air Hammer User Manual

1. Introduction and Overview

The Performance Tool M668 Heavy Duty Air Hammer is a versatile pneumatic tool designed for a variety of tasks including general repairs, panel cutting, hole punching, removing rivets, and exhaust work. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your air hammer.

Figure 1: Performance Tool M668 Heavy Duty Air Hammer

This image shows the main unit of the Performance Tool M668 Heavy Duty Air Hammer, a black pneumatic tool with a comfortable grip and a spring retainer at the front for attaching chisels.

2. Safety Information

WARNING: Always read and understand 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.

• Always wear appropriate personal protective equipment (PPE), including safety glasses, hearing protection, and gloves, when operating the air hammer.
• Ensure the air supply is disconnected before changing accessories, performing maintenance, or storing the tool.
• Do not exceed the maximum recommended air pressure (90 PSI).
• Keep hands and body parts clear of the chisel and work area during operation.
• Secure the workpiece before beginning work to prevent movement.
• Use only chisels designed for use with air hammers and ensure they are properly seated in the retainer.
• Inspect the tool and air hose for damage before each use. Do not use if damaged.
• Operate the tool in a well-ventilated area.

3. Product Components

The Performance Tool M668 Air Hammer package includes the following components:

• Performance Tool M668 Air Hammer Unit
• Quick Change Spring Safety Retainer
• Built-in Air Regulator
• Five (5) Heat-Treated Chisels:
  • Flat Chisel
  • Round Chisel
  • Spot Weld Breaker Chisel
  • Tapered Punch Chisel
  • Rivet Cutter Chisel

Figure 2: Included Components

This image displays the Performance Tool M668 Air Hammer along with its five included heat-treated chisels, the quick-change spring retainer, and the air regulator, all packaged within its retail box.

4. Setup

1. Air Supply Connection: Connect a 3/8" ID air hose to the 1/4" NPT air inlet on the air hammer. Ensure the connection is secure and leak-free.
2. Air Pressure Adjustment: Connect the air hose to an air compressor capable of providing a stable 90 PSI (Pounds per Square Inch) air pressure. The built-in air regulator allows for precise speed control; adjust as needed for your specific task.
3. Chisel Installation:
   • Pull back the quick change spring safety retainer.
   • Insert the desired chisel (with a standard .401 Parker Shank) into the tool's chuck.
   • Release the retainer to secure the chisel in place. Ensure the chisel is firmly seated before operation.

5. Operating Instructions

Once the air hammer is properly set up and connected to an air supply, you can begin operation:

1. Grip: Hold the air hammer firmly with both hands, ensuring a stable and controlled grip.
2. Positioning: Position the chisel tip against the workpiece at the desired angle.
3. Activation: Depress the trigger to activate the air hammer. The tool will begin to hammer rapidly.
4. Speed Control: Use the built-in air regulator to adjust the hammering speed for optimal performance based on the material and task.
5. Applications:
   • General Repairs: Use appropriate chisels for various repair tasks.
   • Panel Cutting: The flat chisel is effective for cutting sheet metal panels.
   • Hole Punching: The tapered punch chisel can be used for creating holes.
   • Removing Rivets: The rivet cutter chisel is designed for efficient rivet removal.
   • Exhaust Work: Utilize various chisels for cutting or shaping exhaust pipes.
6. Deactivation: Release the trigger to stop the hammering action.

Always ensure the chisel is in contact with the workpiece before activating the tool to prevent accidental discharge or damage.

6. Maintenance

Regular maintenance will ensure the longevity and optimal performance of your Performance Tool M668 Air Hammer:

• Lubrication: Apply a few drops of pneumatic tool oil into the air inlet before each use and after every hour of continuous operation. This lubricates internal components and prevents corrosion.
• Cleaning: Keep the tool clean and free of debris. Wipe down the exterior with a clean cloth. Do not use harsh solvents that could damage the tool's finish.
• Air Filter: Regularly check and clean the air filter on your air compressor to ensure a clean air supply to the tool.
• Chisel Inspection: Inspect chisels for wear, dullness, or damage. Replace worn or damaged chisels to maintain efficiency and safety.
• Storage: Store the air hammer in a dry, clean environment away from direct sunlight and extreme temperatures. Disconnect from air supply before storage.

7. Troubleshooting

8. Specifications

9. Warranty and Support

The Performance Tool M668 Heavy Duty Air Hammer comes with a 1-Year Limited Warranty. For specific warranty details, claims, or technical support, please refer to the official user manual PDF or contact Performance Tool customer service directly.

You can often find the full user manual and support information on the manufacturer's website or through the retailer where the product was purchased.

For additional resources, you may refer to the User Manual (PDF).