Atlas Copco Cobratt Jackhammer Manual

Daily Maintenance

• Visual Inspection:
  • Check for any visible damage or leaks.
  • Inspect hoses and connections for wear.
• Air Supply: Ensure the air supply is clean and properly connected.
• Greasing: Lubricate the tool according to manufacturer specifications.

Weekly Maintenance

• Cleaning: Clean the exterior of the jackhammer to remove dirt and debris.
• Check Bolts and Fasteners: Tighten any loose bolts and fasteners.
• Inspect Chisel/Bit: Check for wear and damage; replace if necessary.

Monthly Maintenance

• Full Inspection: Inspect all components, including the trigger and throttle for proper operation.
• Air Filter: Clean or replace the air filter.
• Lubrication: Ensure internal parts are adequately lubricated.

Annually

• Comprehensive Service:
  • Consider a full teardown and inspection of internal components.
  • Replace worn-out parts as needed.
• Calibration: Check the tool’s performance and calibrate if necessary.

Note: Always refer to the manufacturer’s service manual for specific maintenance requirements and intervals based on usage conditions.

Atlas Copco Cobra TT Jackhammer Overview

• Power Source: The Cobra TT can be powered by either electric or compressed air, making it versatile for various job sites.
• Weight: Approximately 20 kg (44 lbs), allowing for portability without sacrificing performance.
• Impact Rate: Delivers a high impact rate, typically around 1,050 blows per minute, ensuring efficient drilling and demolition.
• Drilling Capacity: Suitable for concrete and masonry applications, with drilling capability up to 45 mm (1.77 in) in diameter.
• Handle Design: Ergonomically designed handles to reduce user fatigue and improve control during operation.
• Low Noise Level: Designed for quieter operation, making it suitable for urban construction sites.

Applications

• Ideal for light to medium demolition tasks, including breaking concrete, asphalt, and masonry.
• Commonly used in road maintenance, construction, and utility work.

Accessories

• Typically sold with a range of compatible chisels and bits, allowing for different applications based on job requirements.
• Optional accessories may include transport cases, anti-vibration gloves, and extra chisels.

Maintenance Tips

• Regularly check and replace worn parts such as chisels and seals.
• Keep the tool clean and lubricated for optimal performance.
• Follow the manufacturer’s guidelines for maintenance intervals.

This overview should provide a solid understanding of the Atlas Copco Cobra TT Jackhammer. Always consult the manufacturer’s website or official documentation for the most accurate and detailed specifications.

Product Diagram

For the Atlas Copco Cobratt Jackhammer, here are some common parts and their associated part numbers. Keep in mind that part numbers may vary based on the specific model and production year of the equipment.

• Piston: Part Number: 3211 1220 00
• Cylinder: Part Number: 3211 1250 00
• Throttle Valve: Part Number: 3211 1120 00
• Silencer: Part Number: 3211 1380 00
• O-Ring Kit: Part Number: 3211 3020 00
• Backhead Assembly: Part Number: 3211 1430 00
• Chisel: Part Number: 3211 1450 00 (Note: Different chisel types are available)
• Seal Kit: Part Number: 3211 3025 00
• Air Hose: Part Number: 3211 1400 00
• Impact Rod: Part Number: 3211 1200 00

For exact compatibility and specifications, please consult the equipment’s manual or contact an Atlas Copco representative. Regular maintenance and using the correct parts can help ensure optimal performance and longevity of the jackhammer.

Initial Inspection

• Visual Check: Examine the jackhammer for any visible damage or wear. Look for cracks, loose parts, or signs of oil leakage.
• Check Connections: Ensure that all air connections are secure and that there are no leaks in hoses or fittings.

Power Supply

• Air Supply: Verify that the air pressure is within the required range specified in the user manual.
• Air Quality: Ensure that the air entering the jackhammer is clean and dry.

Operational Check

• Start the Jackhammer: Ensure the tool starts and runs smoothly.
• Performance Test: Check if the jackhammer is delivering the expected impact force.

Component Inspection

• Piston and Cylinder: Remove the front head and inspect for wear or damage.
• Valves: Check the valves for proper operation.
• Chisels and Bits: Examine the chisels and bits for wear.

Lubrication

• Check Oil Levels: Ensure that the lubrication system has sufficient oil.
• Clean Lubrication System: If the lubrication system is clogged, clean it according to manufacturer guidelines.

Check Controls

• Trigger and Throttle: Inspect for proper functionality.
• Safety Features: Test the safety features to ensure they are functioning as designed.

After any repairs or replacements, test the jackhammer again under normal conditions to confirm that the problem has been resolved. Regularly scheduled maintenance can prevent many problems before they occur.

Troubleshooting Tips:

• Always refer to the specific user manual for your model for detailed troubleshooting guidance.
• Use appropriate personal protective equipment (PPE) during inspections and repairs.
• If problems persist, contact a qualified technician or Atlas Copco service for assistance.