Case 1840 Right Drive Side Tires Not Working: Troubleshooting and Solutions

[MikePhua]

Introduction
The Case 1840 skid steer is a reliable and versatile machine, commonly used in construction and landscaping for various tasks. However, like any piece of machinery, issues can arise from time to time. One common problem reported by operators is when the right drive side tires of the Case 1840 are not working, leading to poor or uneven movement. This article explores potential causes of this issue and provides troubleshooting steps to help resolve it.
Understanding the Problem
When the right drive side tires of the Case 1840 skid steer are not working, the machine may exhibit one or more of the following symptoms:

• Uneven Movement: The skid steer may move in an unbalanced or uneven manner, with one side lagging behind the other.
  
• Inability to Turn Properly: Since skid steers rely on differential drive, a malfunctioning drive side can make turning difficult or cause the machine to veer to one side.
  
• Noise or Vibration: Unusual sounds or vibrations may be present, indicating a problem with the drive system.
  

Identifying the root cause of this issue is crucial for making the necessary repairs.
Step 1: Check the Hydraulic System
The first thing to check when diagnosing issues with the right drive side tires is the hydraulic system. Since skid steers use hydraulic motors to drive the wheels, a problem with the hydraulic flow can cause one side to malfunction.

1. Inspect Hydraulic Fluid Level: Low hydraulic fluid can lead to insufficient power being sent to the right drive motor, causing the tire to not operate properly. Check the fluid levels and top them up if necessary.
   
2. Look for Leaks: Leaks in the hydraulic lines or fittings could result in a loss of pressure, leading to poor performance. Inspect the hydraulic lines and connections for any visible leaks or signs of wear.
   
3. Check the Hydraulic Motor: The right drive side hydraulic motor could be malfunctioning. If the motor is not receiving adequate pressure or has internal damage, it may need to be replaced or repaired.
   

Step 2: Examine the Drive Chain and Sprockets
The drive system in the Case 1840 is powered by chains and sprockets that connect the hydraulic motor to the drive wheels. If there is an issue with the chain or sprockets on the right side, the tires may not receive power properly.

1. Inspect the Chain: Check for any slack or damage to the drive chain on the right side. A loose or broken chain can prevent the wheel from receiving the necessary power to rotate.
   
2. Check the Sprockets: Examine the sprockets for any signs of wear or damage. Worn-out sprockets can slip or fail to properly engage with the chain, causing issues with the right drive side tires.
   

Step 3: Verify the Right Wheel Drive Motor Connection
The wheel drive motor is responsible for providing power to the right side tires. A loose or damaged connection could result in a lack of movement on that side.

1. Check for Loose Connections: Inspect the drive motor and its connections for any signs of looseness or disconnection. Tighten any loose bolts or connectors that may be causing the issue.
   
2. Test the Motor: If the connections are secure but the tires still don’t work, the drive motor itself could be faulty. You can test the motor by swapping it with the left side motor to see if the problem moves to the left side. If the left tire starts malfunctioning, the right drive motor is likely the issue.
   

Step 4: Inspect the Drive Wheel and Axle
Sometimes, the issue with the right drive side tires not working may be mechanical in nature, affecting the wheel or axle.

1. Check for Blockages: Inspect the wheel and axle for any debris or obstructions that could be preventing the tire from moving. Any buildup of dirt or materials could impede movement.
   
2. Look for Damage: Examine the axle and wheel for any signs of damage, such as cracks or bent components. If the axle or wheel is damaged, it may need to be replaced.
   

Step 5: Test the Skid Steer’s Controls
The issue could also be related to the machine’s electrical or control systems. Skid steers are equipped with control systems that govern hydraulic flow to the drive motors.

1. Check the Electrical System: Inspect the fuses, relays, and wiring connected to the right drive side hydraulic motor. A blown fuse or faulty relay could prevent power from reaching the motor.
   
2. Test the Joystick or Controls: The joystick or control system may also be malfunctioning. Test the controls to ensure they are sending the correct signals to the drive motor.
   

Step 6: Examine the Differential Drive System
Skid steers utilize a differential drive system, which allows the machine to turn by varying the speed of the left and right wheels. If the differential system is malfunctioning, it could affect the right side tires.

1. Check the Differential: Inspect the differential drive components for signs of damage or wear. A malfunctioning differential could cause one side of the machine to stop driving, while the other side continues to work.
   
2. Lubricate the Differential: Lack of proper lubrication in the differential can cause it to seize or fail, leading to problems with the drive system. Ensure that the differential is properly lubricated and functioning smoothly.
   

Step 7: Consult the Manufacturer’s Manual
If the issue persists after following the troubleshooting steps, it may be time to consult the Case 1840 operator’s manual. The manual may provide additional insights or procedures for diagnosing and fixing the problem. Additionally, you can reach out to a professional mechanic or service technician who specializes in Case equipment for further assistance.
Conclusion
When the right drive side tires on a Case 1840 skid steer aren’t working, the issue can stem from various sources, including the hydraulic system, drive chain, wheel motor, or differential system. By systematically checking each component, you can narrow down the cause and perform the necessary repairs. Regular maintenance and inspections are crucial to keeping your skid steer running smoothly, ensuring optimal performance and preventing future issues.