T200 Left Side Not Working – Troubleshooting Guide

[MikePhua]

The T200 is a widely used skid steer loader, known for its reliability and high performance in construction tasks. However, some users have reported an issue where the left side of the machine stops working, which significantly hampers its ability to operate efficiently. This article provides a detailed analysis of the possible causes of this problem and offers troubleshooting steps to help resolve the issue.
Problem Description
Users have reported that their T200 skid steer loader suddenly stops moving on the left side. This issue often results in the machine being unable to function properly, making it difficult to perform tasks effectively. Based on the symptoms, we need to examine several potential causes for the failure.
Potential Causes of the Issue

1. Hydraulic System Failure
   The T200's movement, including the left side, is controlled by its hydraulic system. If there is a problem with the hydraulic fluid flow, leaks, or blockages, it can cause the left side to stop working. Common causes include:
   • Low Hydraulic Fluid: Insufficient hydraulic fluid or contamination can prevent the hydraulic system from generating enough power, causing the machine’s movements to slow down or stop.
     
   • Hydraulic Pump Failure: A malfunctioning hydraulic pump will not be able to supply adequate pressure to operate the machine's left side.
     
   • Hydraulic Line Leaks or Blockages: If the hydraulic lines are leaking or blocked, the fluid will not flow properly, resulting in malfunctioning controls on the left side.
     
2. Electrical Control Issues
   The T200's electrical control system is responsible for coordinating the hydraulic system and operation controls. If there’s an electrical issue, it may prevent the system from working correctly. Common problems include:
   • Loose Electrical Connections: Loose or corroded electrical connectors may result in faulty signal transmission, causing the left side to malfunction.
     
   • Sensor Malfunctions: A faulty sensor can lead to incorrect feedback being sent to the control system, disrupting the machine’s performance.
     
3. Drive System Malfunction
   If there is a problem with the T200's drive system (e.g., the motor or tracks), it can result in the left side not functioning properly. Issues with the drive system typically manifest as unsteady or no movement at all. Common issues include:
   • Drive Motor Failure: If the drive motor on the left side malfunctions, the machine will not be able to generate enough power to move.
     
   • Track or Chain Issues: A loose track or a broken chain can prevent movement, affecting the left side of the machine.
     

Troubleshooting Steps

1. Inspect the Hydraulic System
   • Check Hydraulic Fluid: Ensure that the hydraulic fluid is at the proper level and that it is clean. If necessary, replace the fluid and clean the hydraulic filter.
     
   • Inspect Hydraulic Pump and Lines: Check if the hydraulic pump is functioning correctly. Look for leaks or blockages in the hydraulic lines and repair them as needed.
     
   • Test Hydraulic Pressure: Use a pressure gauge to check the hydraulic system’s pressure to ensure it meets manufacturer specifications.
     
2. Check the Electrical System
   • Inspect Electrical Connections: Ensure all electrical connectors are secure and there are no signs of corrosion. Tighten or clean any loose or corroded connections.
     
   • Check Sensors and Cables: Verify that sensors are functioning properly and that cables are not damaged or worn out.
     
3. Examine the Drive System
   • Inspect the Drive Motor: Check whether the left-side drive motor is working properly. Look for any signs of overheating or mechanical issues.
     
   • Inspect Tracks and Chains: Make sure the left track is properly tensioned and that there are no breaks or excessive wear on the track or chain.
     

Solutions

1. Hydraulic System Repair: If the issue is with the hydraulic system, replace the hydraulic fluid, clean or replace the filter, and check the pump and lines for any leaks or blockages. If the pump is malfunctioning, it may need to be replaced.
   
2. Electrical System Repair: Tighten any loose electrical connections and replace any faulty sensors. Ensure that all electrical components are working properly.
   
3. Drive System Repair: If the drive motor is faulty, it should be replaced. If there are issues with the tracks, they should be adjusted or replaced. Repair any damaged chains to restore functionality.
   

Conclusion
The T200 skid steer loader's left side not working issue is typically caused by problems with the hydraulic system, electrical control system, or drive system. By following a systematic troubleshooting process, these problems can be identified and addressed. Regular maintenance and inspections are key to preventing these types of issues, ensuring the longevity and reliability of your equipment.