This comprehensive service repair manual provides detailed information for the Bobcat Hydraulic Breaker HB 680, specifically for serial numbers A00W00101 and above. It covers all aspects of maintenance and repair, offering step-by-step instructions for both experienced mechanics and those new to the field. The manual is structured to simplify the repair process, with clear and concise diagrams, circuit information, and technical data. It includes comprehensive sections on: * **General Maintenance:** Learn the essential maintenance procedures to keep your breaker in optimal working condition. * **Troubleshooting:** Identify and resolve common problems with your Bobcat Hydraulic Breaker HB 680. * **Engine Service/Repair:** This section covers all aspects of engine maintenance and repair, including mechanical components, lubrication systems, control systems, cooling systems, and exhaust systems. * **Transmission Service/Repair:** Detailed instructions on servicing and repairing transmission components, such as clutches, automatic transaxles, and manual transaxles. * **Brake System:** Understand the intricacies of the brake system, including the brake system itself, parking brake systems, and brake control systems. * **Wiring Diagram:** This section provides complete wiring diagrams for easy troubleshooting and repair of the electrical system. * **Electrical System:** Discover detailed information on various electrical systems, including starting and charging systems, lighting systems, driver information systems, wiper, washer, and horn systems, body control systems, LAN systems, audio-visual systems, navigation and telephone systems, and power supply systems. * **Suspension:** Learn about the intricacies of the suspension system, including front and rear suspension components. * **Periodic Lubrication:** Follow the recommended lubrication schedules to ensure long-term performance. * **Steering:** Gain a clear understanding of the steering system, including power steering systems and steering control systems. * **Cooling System:** Comprehensive information on the cooling system, including its components and repair procedures. * **Fuel Injection/Fuel System:** Detailed instructions for servicing and repairing fuel injection systems and fuel systems. * **Emission System:** Learn about the emission system and how to maintain its optimal performance. * **Heater/Air Conditioning:** Detailed information on the heater and air conditioning systems and their repair procedures. * **Engine Control System:** Understand the complex engine control system and its components. * **Chassis/Body:** Thorough information on the chassis and body, including repair procedures for various components. * **Restraint System:** Learn about the restraint systems, including seatbelts and supplemental restraint systems. * **Interior:** Detailed information on interior components and their repair procedures. * **Differential/Drive:** Comprehensive information on the differential and drive systems and their maintenance and repair procedures. * **Axle:** Learn about the axle system and its components, including front and rear axles.

The Bobcat Hydraulic Breaker HB 680, with serial numbers A00W00101 and above, is a powerful and versatile excavator attachment designed for demolition, breaking concrete, and other heavy-duty tasks. This hydraulic breaker is part of Bobcat's extensive line of attachments, known for their durability, reliability, and performance. The HB 680 boasts a robust design featuring a heavy-duty piston, a powerful hydraulic system, and a durable chisel, allowing it to deliver impactful blows with impressive force. The breaker's compact size and lightweight construction make it suitable for use on a wide range of excavators, enhancing their capabilities and expanding their applications. The HB 680's advanced features include a variable oil flow control system, allowing operators to adjust the breaker's power and speed to match the specific task at hand. This adaptability ensures optimal performance across various applications, from light demolition to heavy-duty concrete breaking. The breaker also incorporates a dust-tight seal system, protecting its internal components from debris and ensuring long-term performance. This design feature minimizes maintenance requirements, extending the operational life of the HB 680 and contributing to its overall cost-effectiveness. The HB 680 is a reliable and efficient solution for a wide range of demolition and construction projects, providing operators with the power and precision needed to complete demanding tasks with ease.