Title: Hydraulic Motor (Hydraulics) - Troubleshooting
Course: Troubleshooting Labs > Section: Sample Troubleshooting Component Pages

Check the motor is hooked up correctly and has pressure and flow.

About Hydraulic Motors

- Purpose of a Hydraulic Motor: Convert hydraulic power into a rotary (rotational) mechanical motion.
- How it works: Fluid enters the motor, pushes rotors, which are connected to a shaft. The shaft can then be attached to a load.
- When it is used: When rotational work needs to be done.

Common Component Failure Problems

- Check that the hoses are hooked up correctly.
  - If motor is unidirectional, hoses should be hooked up in correct direction.
  - If motor is bidirectional, hoses should be hooked up in the direction intended.
- Check pressure and flow.
  - Is motor getting expected pressure?
    - If not, problem is likely upstream.
  - Is motor getting expected flow? Is the flow high enough for the valve to function properly?
    - If not, problem is likely upstream.
- Internal components damaged.
  - If hooked up correctly and getting expected pressure and flow, internal components are likely broken or worn out.
  - Rebuild or replace motor.

Troubleshooting Instrumentation/Tools

- How to troubleshoot a hydraulic system
- Using a pressure gauge to troubleshoot a hydraulic system
- Using a flow meter to troubleshoot a hydraulic system

Troubleshooting Step-by-Step Example

Additional Troubleshooting Information

Related Parts:

- Small Cylinder
- Large Cylinder

Schematic:

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