# Long-Term Maintenance (150hr+)

The Rush SR is designed for longevity, but extended operation requires scheduled replacement of safety-critical and wear components. A warning light is shown every 12,000 mi (approx. 150 hours) to indicate the engine and gearbox should be rebuilt. See [Dash Alarms](/at-the-track/aim-dashes-and-smartycams/dash-alarms.md).

The intervals below assume approximately 8 hours per event.

## Every 2 Years (\~64 hrs)

| Task                                | Notes                                                    |
| ----------------------------------- | -------------------------------------------------------- |
| Replace sprockets                   | —                                                        |
| Replace master cylinders            | —                                                        |
| Rebuild brake calipers              | —                                                        |
| Replace wheel studs                 | —                                                        |
| Replace ignition coils              | —                                                        |
| Replace fuel pumps                  | —                                                        |
| Replace fuel cell foam              | —                                                        |
| Replace Gen 1 seat                  | —                                                        |
| **Certify fire suppression system** | **REQUIRED** — gauge must be in GREEN before every event |

## Every 3 Years (\~96 hrs)

| Task               | Notes |
| ------------------ | ----- |
| Replace pedal box  | —     |
| Replace Gen 2 seat | —     |

## Every 4 Years (\~160 hrs)

| Task                           | Notes    |
| ------------------------------ | -------- |
| Rebuild engine                 | \~$3,500 |
| Rebuild steering rack          | —        |
| Replace steering quick release | —        |
| Replace wheel bearings         | —        |

## Every 5 Years — MANDATORY

{% hint style="danger" %}
The following items **must** be replaced every 5 years regardless of apparent condition. These are safety-critical components with defined service lives.
{% endhint %}

| Task                       | Notes                                                                                                            |
| -------------------------- | ---------------------------------------------------------------------------------------------------------------- |
| **Replace driver harness** | Inspect before every session for frays, cuts, or damage. Never use a harness with broken or missing buckle pins. |
| **Replace fuel cell**      | Inspect foam baffling regularly for deterioration. Dual fuel tank cars must have only ONE check valve installed. |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://manual.rush.sr/maintenance/long-term-maintenance-150hr+.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.