At Final Drive Parts, quality is of the utmost importance. That’s one of the reasons why we perform pneumatic and hydraulic testing on all of our re-manufactured final drive motors.

Pneumatic leak detection

Once assembly of a re-manufactured final drive or hydraulic motor is completed we perform a calibration inspection and then test it for leaks. We utilize a precision pneumatic leak detection instrument that measures pressure decay over a fixed period of time to determine the presence and severity of any leaks that may be present. The final drive or hydraulic motor doesn’t pass until it meets our stringent leak detection criteria. Once those criteria are met, the results are documented in real time in our company’s database for traceability.

Rebuilt Final Drive versus Remanufactured Final Drive

The re-manufactured motor will then be attached to a hydraulic test stand to ensure the motor will function properly.A quality assurance inspector will perform a series of diagnostic tests and document all the results in our company’s database. This provides documentation of all test results and makes traceability possible.

The hydraulic performance tests we perform include …

• Idle test (high and low readings)
• Load test (high and low readings)
• Case drain flow
• Brake engage and release pressure
• RPM performance
• Dual speed performance (if applicable)

Quality Assurance Inspectors

Final visual leak checks are performed and verified by a different quality assurance inspector. Note that all our quality assurance inspectors report directly to the Quality Assurance Manager.

Conclusion: Full Series of Hydraulic Tests

We perform thorough testing on both the final drives that we repair and the final drives that we re-manufacture, including leak testing and a full series of hydraulic tests.