# 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](https://manual.rush.sr/aim-dashes-and-smartycams/dash-alarms "mention").

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. |