Oklahoma State University – Clutch
Event: 2025 IQS
Category: Drivetrain
Subcategory: Clutch
This table shows this tractor’s tech status for each rule in this subcategory. Click a rule number to see the rule-specific detail page.
| Rule # | Description | Status |
|---|---|---|
| (Sec 7.1) | All clutch assemblies must rotate at engine speed or slower. (Sec 7.1) | Pass |
| (Sec 7.3) | No energy storing devices may be used to power the transmission. (Sec 7.3) | Pass |
| (Sec 7.3.1) | A clutch assembly will NOT be considered an energy-storing device, if it is reasonably designed. (Sec 7.3.1) | Pass |
| (Sec 7.24) | Variable belt drive transmissions are not allowed to change drive ratios by means of flyweights or a torque sensing helix. (Sec 7.24) | Pass |
| (Sec 10.7) | Regardless of use, variable belt drive transmissions must be shielded as clutches. (Sec 10.7) | Pass |
| (Sec 10.8) | Belts operating as a clutch must be shielded as a clutch. (Sec 10.8) | Pass |
| (Sec 10.9) | Shielding must cover clutches and must be: (Sec 10.9) | Pass |
| (Sec 10.9.1) | Fully enclosed, any openings should adhere to 10.9.5 (Sec 10.9.1) | Pass |
| (Sec 10.9.2) | Minimum of 1/8-inch (3 mm) thick low carbon steel or 0.25 inch (6 mm) thick aluminum. (Sec 10.9.2) | Pass |
| (Sec 10.9.3) | Utilize bolts or capscrews of at least 0.25-inch (6-mm) in diameter. (Sec 10.9.3) | Pass |
| (Sec 10.9.4) | Tools must be required to remove the shielding. (Sec 10.9.4) | Pass |
| (Sec 10.9.5) | Openings will be allowed for venting or passing through of other components if they meet the following requirements: (Sec 10.9.5) | Pass |
| (Sec 10.9.5.1) | No more than 6 total openings. (Sec 10.9.5.1) | Pass |
| (Sec 10.9.5.2) | Not on the peripheral area of the clutch. (Sec 10.9.5.2) | Pass |
| (Sec 10.9.5.3) | Openings adjacent to the peripheral area of a clutch must be no closer than 1.5 in (38.1mm) from an edge of the peripheral area of the clutch. (Sec 10.9.5.3) | Pass |
| (Sec 10.9.5.4) | There is a maximum of 1⁄4” (6.35mm) opening in shielding for venting and/or between the shield and the component passing through the shield (i.e. chain, belt, etc.). (Sec 10.9.5.4) | Corrected |
| (Sec 10.9.5.5) | Deflectors exist to prevent material that could come through the openings from contacting the operator or bystanders (i.e. frame rails, footrests, etc.). (Sec 10.9.5.5) | Pass |