How to Rebuild and Restore Farm Tractor Engines
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Tractor PTO Types
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| PTO Type: |
Type 1 |
Type 2 |
Type 3 |
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| Diameter: |
1 3/8" (35mm) |
1 3/8" (35mm) |
1 3/4" (45mm) |
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| Speed: |
540 RPM |
1000 RPM |
1000 RPM |
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| Gear teeth: |
6 |
21 |
21 |
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| Rotation: |
Clockwise, as viewed from end of shaft |
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Non-standard PTOs
Not all tractors will have a power take-off that conforms to the standards. The Farmall Cub, for example, uses a PTO that rotates counter-clockwise at 1800 RPMs. The Cub can only use powered implements specifically designed for that PTO. Before using any PTO refer to the tractor's operating manual to ensure you have properly matched the PTO and implements.
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