This document is a shop manual for the DOOSAN DX55W Wheel Excavator, covering models with serial numbers 5001 and up. The manual, identified by part number K1038983E, was copyrighted in 2008 by DOOSAN. It provides comprehensive information for the safe operation, maintenance, and repair of the DX55W.
Function Description:
The DOOSAN DX55W is a wheel excavator primarily designed for moving earth with a bucket. It can also be used for other object handling, such as with a grapple, and for lifting-work applications when configured appropriately and within rated capacity. The machine is versatile, capable of digging, loading, and grading, and can be equipped with accessories like hydraulic hammers (breakers) for demolition or other hazardous operations. Its design emphasizes safety and efficiency in various work environments.
Important Technical Specifications:
The manual lists several key sections that imply technical specifications and operational details:
- Specifications for DX55W (SP001503): This section would contain detailed technical data specific to the DX55W model, likely including engine power, operating weight, dimensions, hydraulic system capacity, and performance characteristics.
- Standard Torques (SP000813): Essential for proper assembly and maintenance, this section provides torque values for various fasteners, ensuring structural integrity and preventing damage.
- Upper Structure Components: Includes details on the cabin (SP001504), counterweight (SP001505), fuel tank (SP001506), fuel transfer pump (SP001507), and swing bearing (SP001508). These sections would cover their respective specifications, such as fuel capacity, pump type, and bearing dimensions.
- Lower Structure and Chassis Components: Covers the ram lock valve (SP001560) and axle (SP001553), detailing their design and function within the chassis.
- Engine and Drive Train: Includes the engine (SP001558), transmission (SP001509), and drive coupling (main pump) (SP001482). This suggests information on engine type, power output, transmission gears, and the coupling mechanism for the main hydraulic pump.
- Hydraulics: Features a section on hydraulic system troubleshooting, testing, and adjustment (SP001510), as well as specific components like the accumulator (SP000984), center joint (swivel) (SP001511), cylinders (SP001512), main control valve (SP001513), swing motor (SP001485), travel motor (SP001110), steering valve (SP001514), remote control valve (work lever/joystick) (SP001489), dozer valve (SP001490), accelerator pedal valve (hydraulic) (SP001515), service brake pedal valve (SP001516), and a hydraulic schematic (DX55W) (SP001517). These sections provide critical details on the hydraulic system's architecture, component specifications, and operational parameters.
- Electrical System: Covers the electrical system (SP001518) and electrical schematic (DX55W) (SP001557), outlining the wiring, components, and diagnostic information.
- Attachments: Includes details on the boom and arm (SP001519) and bucket (SP001496), likely covering their dimensions, capacities, and attachment procedures.
Usage Features:
The manual emphasizes safe and proper usage of the DX55W.
- Safety Lock Lever: A crucial safety feature, the safety lock lever must be securely placed in the "LOCK" position when standing up from the operator's seat or leaving the machine to prevent accidental movement of work equipment.
- Working Mode for Lifting: When performing lifting operations, the "Working Mode" control on the instrument panel must be engaged. The manual provides a summary of safety precautions for lifting, including evaluating ground support, excavator configuration, weight, lifting height, lifting radius, safe rigging, and proper handling of suspended loads. Tag lines are recommended for load stability.
- Operator Responsibility: Operators are responsible for their own safety and that of others. They must be trained and understand the manual's information.
- Prohibited Uses: The machine should not be used for activities for which it was not intended. The bucket should not be used for lifting work unless lift slings are used in an approved configuration.
- Environmental Considerations: The manual advises against operating in high wind gusts (over 48.3 km/h or 30 MPH) when making rated lifts with large surface area loads.
- Cabin Environment: Operators are instructed to remove mud and oil from shoes before entering the cabin, properly extinguish cigarettes, avoid placing suction pads on windows, not leave lighters in the cabin, and refrain from using cellular phones or headphones while operating.
- Personal Protective Equipment (PPE): The manual recommends wearing appropriate PPE such as full eye protection, a hard hat, safety shoes, and gloves, and avoiding loose clothing or jewelry.
- Unauthorized Modifications: Any modifications without written authorization from DOOSAN are prohibited and can create safety hazards.
Maintenance Features:
The manual provides detailed guidance for maintaining the DX55W.
- General Maintenance Procedures (SP000016): This section would outline routine checks, lubrication schedules, and general upkeep necessary for the machine's longevity and performance.
- Periodic Review: Operators and maintenance personnel are advised to read the manual thoroughly and periodically to stay informed about proper procedures.
- Genuine Parts: It is crucial to replace all OEM parts with correct, authorized, or genuine DOOSAN parts to maintain safety and performance.
- Guards and Covers: All guards and covers must be installed in their proper position and repaired immediately if damaged.
- Tool Usage: Only adequate tools should be used for maintenance tasks to prevent injury and ensure proper function.
- Battery (SP001502): A dedicated section for battery maintenance (page 1-41) indicates specific procedures for handling, charging, and replacing the battery safely.
- Troubleshooting: The hydraulic system troubleshooting, testing, and adjustment section (SP001510) suggests that the manual includes diagnostic information to help identify and resolve issues.
- Shipping and Transportation (SP001502): This section (page 1-44) likely details procedures for preparing the excavator for transport, including securing components and ensuring compliance with shipping regulations.
- Lifting with Sling (SP001502): This section (page 1-44) provides instructions for safely lifting the machine using slings, which is a critical maintenance and transport procedure.
The manual emphasizes that DOOSAN continuously improves its products and recommends consumers contact distributors for the latest documentation. It also clarifies that illustrations are representative and may vary from the actual item.
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