Changing the Long Reach to OEM Stick and Arm on the 200LC

[MikePhua]

Introduction: The Need for Customizing Excavators
Excavators, like the 200LC, are incredibly versatile machines that are often customized for different types of work. The long reach configuration, for instance, is ideal for projects requiring extended reach, such as dredging or digging in hard-to-reach places. However, there are situations where an operator or company might need to switch back to the OEM (Original Equipment Manufacturer) stick and arm to restore the machine to its standard configuration.
Whether it's due to changing project requirements, equipment leasing, or simply a preference for the original design, changing from a long reach setup to the OEM stick and arm requires careful planning, knowledge, and resources. In this article, we will explore the process of switching out the long reach attachment for the OEM configuration on a 200LC excavator, touching on key considerations and offering insights on maintaining performance and safety.
The 200LC Excavator: A Workhorse in the Field
The 200LC series of excavators by Caterpillar is known for its durability and versatility. Typically used in general construction, demolition, earthmoving, and excavation applications, this model is well-suited for a wide variety of jobs. The 200LC can be fitted with different attachment types, from standard arms and sticks to long reach attachments, making it adaptable for specific tasks.
The long reach configuration, with its extended arm and stick, is used for jobs where reach is crucial—like digging in deep trenches or dredging operations. However, this setup may not be ideal for all types of work, particularly if the machine is intended to be used for more general applications. In such cases, switching back to the OEM stick and arm is a practical option.
Why Switch Back to OEM Stick and Arm?
There are several reasons why an operator might choose to replace a long reach attachment with the OEM configuration:

• Project Requirements: A project might require more standard digging capabilities, which a long reach setup may not efficiently provide. A more conventional arm can provide better lifting capacity and digging force.
  
• Cost-Effectiveness: Long reach attachments tend to increase fuel consumption and wear on certain machine components. Using the standard configuration may reduce operational costs over time.
  
• Flexibility: The OEM stick and arm are designed for a wide range of tasks, offering better maneuverability and more power for heavy-duty digging and lifting.
  
• Availability of Equipment: In cases where the long reach attachment is no longer required, switching to the OEM arm might be necessary due to the availability of parts or when leasing the machine for more standard projects.
  

Steps for Changing the Long Reach to OEM Stick and Arm
Changing the long reach configuration back to the OEM stick and arm is a detailed process that requires knowledge of both the excavator's structure and the specific components involved. Below are the general steps involved in making the swap:
1. Prepare the Work Area
Before beginning any work on the machine, it’s important to prepare the work area:

• Ensure the excavator is on a level surface.
  
• Use safety equipment such as gloves, helmets, and steel-toed boots.
  
• Have appropriate tools and equipment ready, such as wrenches, lifting equipment (if necessary), and a service manual for the 200LC.
  

2. Disconnect the Long Reach Arm
To remove the long reach attachment, follow these steps:

• Lower the arm to a safe, stable position.
  
• Disconnect any hydraulic hoses connected to the long reach arm. These hoses typically control the boom and bucket operations.
  
• Use lifting equipment to support the long reach attachment while you disconnect the main pivot points.
  
• Remove the pins or bolts that attach the long reach arm to the rest of the excavator.
  
• Carefully lift off the long reach arm and set it aside for storage or further use.
  

3. Install the OEM Stick and Arm
Once the long reach attachment is safely removed, the next step is to install the OEM stick and arm:

• Align the new OEM stick and arm with the mounting points on the excavator.
  
• Reattach the hydraulic hoses that control the OEM configuration. Be sure the hoses are correctly fitted to avoid leaks during operation.
  
• Insert the pins and bolts to secure the arm and stick in place. Tighten them to the specifications provided in the service manual.
  
• Check all hydraulic connections to ensure they are secure and free from leaks.
  

4. Reconnect Hydraulic Systems
Once the stick and arm are securely attached, it's time to reconnect the hydraulic system:

• Ensure that the hydraulic oil is filled to the correct level before operating the machine.
  
• Test the system by slowly activating the hydraulic controls. Check for any abnormal noises, leaks, or irregular movements.
  
• If the system is functioning properly, perform a full range of motion tests to ensure the OEM stick and arm are operating smoothly.
  

5. Perform Final Safety Checks
Before putting the excavator back into full operation, conduct a final round of safety checks:

• Double-check all fasteners, bolts, and hydraulic connections to ensure everything is secure.
  
• Verify that all safety devices, such as locking pins and safety latches, are in place and functioning correctly.
  
• Run the machine for a brief period to test all functions (lifting, digging, rotation) under low load conditions.
  

Challenges to Consider When Switching Attachments
While changing the stick and arm may seem like a straightforward process, there are some challenges to keep in mind:

• Compatibility Issues: Ensure that the OEM parts you’re using are fully compatible with the 200LC model. Even minor differences in pin sizes, hydraulic fittings, or arm geometry can cause issues.
  
• Hydraulic Pressure Adjustment: The long reach attachment might require different hydraulic settings than the OEM arm. After switching back to the OEM arm, check the hydraulic system for optimal pressure and flow.
  
• Weight Distribution: The long reach attachment might have changed the weight distribution of the machine. After switching back to the OEM configuration, be mindful of any shifts in balance that could affect performance.
  

Maintaining the 200LC Excavator
After switching back to the OEM stick and arm, it’s important to maintain the excavator to ensure it continues to perform at its best. Regular hydraulic oil changes, greasing of pivot points, and inspections of the hydraulic system will prolong the life of the attachment and the machine itself.
Conclusion: Restoring the 200LC to OEM Specifications
Changing the long reach to the OEM stick and arm on a 200LC excavator is a process that requires careful attention to detail, the right tools, and a good understanding of the machine’s components. By following the correct steps and ensuring proper maintenance, operators can restore their machine to its standard configuration, making it more versatile for general tasks while also improving performance and reducing operational costs.
Whether you’re switching configurations for a specific project or simply adjusting to meet your machine’s needs, taking the time to do it properly will ensure that your 200LC excavator remains a reliable workhorse in your fleet for years to come.