Quick answer: Measure the identified spring in a controlled fixture and compare it with the complete assembly before changing parts.

How can spring loss be separated from assembly resistance?
A weakened return can arise from increased guide friction or a changed load. Replacing the spring first removes evidence and may hide the actual cause. Preserve the original state, record the symptom's position and compare directional traces under the same conditions.

A practical verification method
Repeat fixture and assembly measurements with the same part and note which comparison explains the lost function.
| Item | What to record | Purpose |
|---|---|---|
| Reference configuration | Part or assembly identity and drawing revision | Make comparisons traceable |
| Test conditions | Relevant position, direction and operating condition | Compare the same characteristic |
| Decision evidence | Repeat fixture and assembly measurements with the same part and note which comparison explains the lost function. | Resolve the specific question before approval |

Use the result in an engineering request
Describe the observed condition and the required function separately. Include the relevant drawing revision and your results from the check above. If an acceptance limit has not been established, identify it as an open design input rather than treating a successful trial as approval.
Review the related Leading Spring product information. For a project-specific review, send the mechanism description, available geometry and the evidence relevant to this decision through the contact page.
Editorial note: AI-assisted engineering guidance, prepared from the topic-specific reasoning shown here and the company’s public product context. Illustrations explain decisions; they are not customer-case photographs or test results. Product-specific suitability requires review against your approved requirements.