Why You Shouldn't Work Over Track Motors

[MikePhua]

When it comes to heavy machinery, track motors play a pivotal role in providing movement and stability to tracked equipment such as bulldozers, excavators, and skid steers. These motors are responsible for driving the tracks, allowing the machine to move and perform essential tasks in tough environments. However, when it comes to servicing or operating around these critical components, there are certain precautions that must be taken to avoid damage and ensure safe operation.
The Importance of Track Motors
Track motors, also known as travel motors or drive motors, are the components that drive the tracks on a tracked vehicle. These motors are typically hydraulic in nature, using the flow of hydraulic fluid to generate the necessary power to move the tracks. Track motors are integral to the operation of heavy equipment in rough, uneven, or off-road terrains, such as construction sites, quarries, or forests.
Without functioning track motors, tracked vehicles would be unable to traverse these environments effectively. For example, in a bulldozer or excavator, the track motors ensure the machine’s mobility and provide the necessary torque to operate in demanding conditions. Given their importance, proper care and attention to these motors is crucial for preventing downtime and costly repairs.
Risks of Working Over Track Motors
Despite their crucial function, track motors are often overlooked during routine maintenance or servicing, especially when working around areas that are close to the motors. Here are the primary risks of working over track motors without proper caution:

1. Potential Damage to the Motor's Seals
   Track motors contain hydraulic seals that are sensitive to external pressure and contamination. When working over or near the track motors, mechanical tools or other heavy machinery can accidentally exert pressure on the seals, leading to damage. Damaged seals can result in hydraulic fluid leakage, which compromises the efficiency of the motor and could lead to a complete failure of the track motor. If the seal fails, the motor could lose power, or the hydraulic fluid could become contaminated, causing further operational issues.
   
2. Accidental Activation of the Motors
   One of the more common issues is accidentally activating the track motors while working around them. Tracked equipment is often equipped with high-power hydraulic systems that can be triggered accidentally. If the operator is not careful and the motors are engaged without the proper precautions, it could result in sudden movement of the equipment, putting workers at risk of injury. The risk is particularly high if the equipment is in an unstable position, or if it's in close proximity to other workers or structures.
   
3. Damage from Overloading the Track Motors
   Another significant concern is overloading the track motors, especially when heavy tools or equipment are placed directly over or near them. Track motors are designed to handle a specific load capacity, and adding extra weight, especially in a concentrated area, can cause undue strain on the motor’s internal components. Overloading can lead to a range of mechanical failures, including premature wear, overheating, or motor burn-out. This can shorten the lifespan of the track motor and increase maintenance costs.
   
4. Contamination Risk
   Track motors are sensitive to contamination, as dirt, debris, and moisture can enter the system through damaged seals or improperly maintained parts. If external contaminants are introduced while working over the motors, it can lead to poor performance and potential motor failure. Even slight contamination can affect the performance of the hydraulic components and could cause internal damage over time.
   

Proper Precautions to Take
To ensure the longevity of track motors and prevent costly repairs, it's essential to follow these recommended precautions when working around track motors:

1. Use Proper Lifting Techniques
   When servicing or working near track motors, always use appropriate lifting equipment to prevent excess weight from being placed on the motor. Equipment such as cranes, hoists, or jacks should be used to lift the vehicle rather than relying on manual methods or other unsafe techniques that could put stress on the track motor. Always make sure that the lifting equipment is rated for the weight and that the vehicle is stable before proceeding with any work.
   
2. Ensure Proper Deactivation of Motors
   Before working around the track motors, it’s crucial to ensure that the motors are completely deactivated. Engage the parking brake and disable any hydraulic flow to the motors. In some cases, locking the hydraulic system can also help prevent accidental activation of the motors. It’s essential to check with the equipment’s manual to ensure all the necessary steps are taken before working around the track motor.
   
3. Perform Regular Maintenance and Inspections
   Regular maintenance and inspections are essential for keeping track motors in optimal working condition. This includes checking for leaks, worn seals, and ensuring that the hydraulic fluid levels are within the recommended range. Additionally, the track motor's external parts, such as the casing and connections, should be inspected for any visible signs of damage. A comprehensive check-up can prevent issues before they escalate into major problems.
   
4. Use Clean Tools and Materials
   When working near track motors, always use clean, dry tools and materials to prevent contamination. Hydraulic motors can be sensitive to dust and debris, which could damage seals or internal parts. Any contaminants can disrupt the smooth operation of the motor and may cause hydraulic fluid breakdown or system failure.
   
5. Training and Awareness
   Proper training for operators and service personnel is crucial in ensuring that everyone understands the risks associated with track motors. Operators should be trained to recognize the signs of potential motor failure, as well as how to engage the correct procedures for disabling the motors during maintenance. Knowledge of safety protocols can significantly reduce the risk of accidents.
   

Conclusion
Track motors are vital components of tracked machinery, enabling movement and stability across challenging terrains. However, working near or over these motors without the proper precautions can lead to significant risks, including seal damage, accidental activation, overloading, and contamination. By following proper maintenance practices, using the correct tools, and ensuring that the motors are deactivated before work begins, you can protect these crucial components from damage and extend the life of the machinery.
Ultimately, ensuring that track motors remain in good condition requires vigilance, attention to detail, and a proactive approach to maintenance. Through careful handling and regular inspections, you can ensure the reliable operation of tracked equipment while keeping the track motors in excellent working order.