Modifying the Bobcat Power Bob-Tach Control

[MikePhua]

The Bobcat Power Bob-Tach system is one of the most popular quick-coupler systems used in the skid steer loader industry. This hydraulic-powered system makes it easy for operators to quickly change attachments without having to leave the operator's seat. It significantly boosts productivity, reducing downtime and effort when switching from one attachment to another. However, like many systems, modifications can sometimes be necessary to improve performance or to meet specific job requirements.
In this article, we explore a modification to the Bobcat Power Bob-Tach Control system, focusing on its benefits, challenges, and practical solutions to ensure smooth functionality. The modification discussed primarily deals with optimizing the hydraulic connections for greater ease of use and improved reliability.
The Bobcat Power Bob-Tach System: An Overview
Bobcat's Power Bob-Tach system is designed to simplify the process of attaching and detaching various equipment tools from the loader. This quick coupler system operates through hydraulic power, enabling operators to engage or disengage the attachment with just the push of a button.
The system consists of a set of hydraulic cylinders that engage with the attachment’s pin connection, allowing it to lock or unlock the attachment. This helps save time and effort, eliminating the need for manual intervention in securing or removing heavy tools like buckets, forks, or grapples. The ease of operation is a major factor in why the system is so popular among operators who frequently need to switch between various attachments during work.
Why Modify the Bobcat Power Bob-Tach Control?
While the Power Bob-Tach system is widely praised for its convenience, some users report a few issues related to the control mechanism. The common concerns are:

1. Hydraulic Performance: Over time, the hydraulic system may not perform as efficiently, leading to slow or inconsistent attachment engagement. This can affect productivity and make switching attachments more time-consuming.
   
2. Reliability of the Control Switch: In some cases, operators find the control switch—used to engage or disengage the coupler—can be less responsive or even prone to failure. A modification of the control system may be required to restore optimal performance.
   
3. Compatibility with Older Models: Older Bobcat models may have a less refined Power Bob-Tach system, and operators often seek modifications to improve their functionality and integrate them with newer attachments or upgraded systems.
   

The Modification: Improving Hydraulic Control and Response
The modification discussed here primarily focuses on improving the hydraulic system's performance, particularly the speed and efficiency at which the Bob-Tach coupler locks and unlocks the attachment. Here’s a breakdown of the modification process and the steps to ensure the system performs as expected:

1. Upgrading the Control Valve
   The original control valve may not be as responsive or precise as it needs to be for quick operations. Replacing the existing valve with a more advanced one can help improve the speed and reliability of the hydraulic connections. A higher-quality valve will provide better flow regulation, ensuring that the Power Bob-Tach system responds quicker to the operator's commands.
   
2. Reconfiguring the Hydraulic Circuit
   In some cases, the hydraulic circuit may need to be re-routed to accommodate additional or more powerful pumps. This modification can improve the flow rate of hydraulic fluid, reducing the time it takes for the system to engage or release attachments. By improving the hydraulic circuit design, the Bobcat loader can better handle the hydraulic load, especially when using high-flow attachments.
   
3. Installing a Solenoid Valve
   Adding a solenoid valve can enhance the system’s overall reliability by ensuring that hydraulic fluid is directed to the proper part of the system at the right time. The solenoid valve improves the timing of engagement, making the entire attachment change process smoother and quicker.
   
4. Improving the Hydraulic Hoses
   Over time, hydraulic hoses may become worn or clogged, affecting fluid flow and overall performance. Replacing older hoses with higher-quality, high-flow hydraulic hoses will improve the power and efficiency of the system. This ensures that the hydraulic fluid moves more freely, preventing lag during engagement.
   

Challenges and Considerations
Although the modification can significantly improve the performance of the Bobcat Power Bob-Tach system, there are a few challenges and considerations that operators must keep in mind:

1. Technical Skill Required
   Modifying the hydraulic system and control mechanisms is not a simple DIY task. It requires technical knowledge of hydraulic systems and an understanding of how the Bobcat Power Bob-Tach works. The modification should ideally be performed by a qualified technician to ensure it is done correctly and safely.
   
2. Potential Compatibility Issues
   Depending on the age of the Bobcat machine, compatibility issues may arise when upgrading certain parts. For example, the newer hydraulic components or valves may not fit with older models without additional modifications. It's crucial to consult with Bobcat or an authorized dealer to ensure that the new parts are compatible with your machine.
   
3. Cost of Modifications
   Depending on the complexity of the modifications, the cost can vary. While the upgrade can significantly enhance the system's performance, operators should weigh the potential cost of the modification against the expected productivity gains. In some cases, purchasing a new attachment or system upgrade might be more cost-effective in the long run.
   
4. Maintenance Post-Modification
   After modifying the Power Bob-Tach system, regular maintenance and inspection will be more critical than ever. Modifications may put additional strain on some components, so operators should be vigilant about checking hydraulic fluid levels, hoses, and other parts of the system to prevent issues down the road.
   

Benefits of Modifying the Bobcat Power Bob-Tach
When done correctly, the modification can provide numerous benefits:

1. Faster Attachment Changes
   The primary benefit is the enhanced speed and reliability of attachment changes. By improving the hydraulic system and control valve, the operator can quickly and seamlessly engage and disengage attachments without losing time.
   
2. Increased System Longevity
   The upgraded components, such as the solenoid valve and high-flow hoses, reduce wear and tear on the system, potentially extending the lifespan of the Power Bob-Tach system and reducing the frequency of repairs.
   
3. Enhanced Control
   With the right modifications, the operator gains better control over the attachment process. Faster response times and smoother engagement improve operator satisfaction and reduce operational stress.
   
4. Improved Productivity
   Ultimately, the improved functionality of the Power Bob-Tach system leads to better productivity on the job site. Operators can switch between attachments faster, allowing for more efficient use of the loader and reduced downtime.
   

Conclusion
Modifying the Bobcat Power Bob-Tach Control can significantly enhance the performance of the loader, especially for operators using the system in demanding, high-output environments. By upgrading the hydraulic components, control valves, and hoses, operators can improve the system’s responsiveness, reliability, and overall efficiency. However, these modifications require technical knowledge and careful planning to ensure compatibility and safety. When done properly, the modifications can improve productivity, reduce downtime, and prolong the life of the machine.