Bobcat Skid Steer Lift Arms Not Working? Causes & Fixes

A Bobcat skid steer relies on a powerful hydraulic system to lift and lower the bucket or attachments. If the lift arms won’t move, are slow to respond, or get stuck in one position, it can be due to low hydraulic pressure, clogged filters, faulty control valves, or cylinder issues. Below, we’ll explore the top reasons why a Bobcat skid steer’s lift arms aren’t working properly and how to fix them.

Common Causes of Lift Arm Failure in Bobcat Skid Steers

1. Low Hydraulic Fluid or Contaminated Oil

If the hydraulic fluid is too low or contaminated, the system may not generate enough pressure for proper lift arm operation.

Solution:

  • Check the hydraulic fluid level and refill as specified in your Bobcat skid steer service manual.

  • If the fluid is dark, milky, or contains debris, flush the system and replace it with fresh hydraulic oil.

  • Inspect for leaks in hoses and fittings.

2. Clogged Hydraulic Filter or Return Line Blockages

A dirty or blocked hydraulic filter can restrict fluid flow, slowing down or preventing lift arm movement.

Solution:

  • Replace the hydraulic filter if it hasn’t been changed recently.

  • Inspect the return lines for debris or obstructions.

  • Follow filter replacement steps in your Bobcat skid steer repair manual.

3. Faulty Lift Control Valve or Stuck Relief Valve

If the lift control valve or relief valve is malfunctioning, hydraulic flow may be restricted or misdirected.

Solution:

  • Test the lift control valve to ensure it’s directing hydraulic flow properly.

  • Inspect the relief valve for blockages or incorrect pressure settings.

  • Adjust or replace the valve as needed using the steps in your Bobcat loader hydraulic system manual.

4. Worn or Leaking Lift Cylinders

A leaking or internally damaged hydraulic cylinder can cause slow or weak lift arm movement.

Solution:

  • Check for external leaks around the lift cylinder seals.

  • If the lift arms drift down when holding a load, perform a cylinder bypass test.

  • If necessary, rebuild or replace the lift cylinders following the Bobcat skid steer service guide.

5. Electrical or Hydraulic Solenoid Issues

On newer Bobcat models, an electrical solenoid controls hydraulic functions. A faulty solenoid can prevent the lift arms from operating correctly.

Solution:

  • Use a diagnostic scanner to check for error codes related to hydraulic solenoid failure.

  • Inspect wiring and connectors for damage or loose connections.

  • Test and replace faulty solenoids using guidance from your Bobcat equipment manual.

6. Bobcat Lift Arm Lock Engaged

Many Bobcat skid steers have a lift arm safety lock that prevents movement if engaged.

Solution:

  • Ensure the lift arm bypass or hydraulic unlock switch is activated.

  • If the safety lock is stuck, inspect the linkage or electrical connections.

  • Follow lift arm safety lock troubleshooting in your Bobcat operator manual.

Preventive Maintenance for Bobcat Skid Steer Lift Arms

To avoid future issues with lift arm operation:

  • Regularly replace hydraulic fluid and filters.

  • Inspect hydraulic cylinders and control valves for wear.

  • Keep the lift arm safety system maintained and functioning properly.

  • Follow scheduled maintenance in your Bobcat skid steer manual.

Get the Right Manual for Your Bobcat Skid Steer

A Bobcat skid steer service manual is essential for diagnosing and fixing lift arm failures, hydraulic pressure issues, and control valve malfunctions. At PDFManualsShop.com, we provide Bobcat loader repair manuals with step-by-step troubleshooting guides, system diagrams, and maintenance procedures.

We also offer manuals for Case, John Deere, Kubota, and Volvo.

Back to blog