After testing PTO control and placing the transmission in the recommended gear for stationary PTO operation, what should the speedometer read?

After testing PTO control and placing the transmission in the recommended gear for stationary PTO operation, what should the speedometer read?

• A. 0 RPM
• B. Slightly Above Zero
• C. Moderate
• D. Maximum

Answer: (B)

When the PTO is engaged and the transmission is set for stationary operation, the engine is running and the drivetrain is still connected to the PTO. The output shaft of the transmission will rotate at a small rate corresponding to the engine’s idle speed and the PTO gear engagement, even though the wheels aren’t turning. Because the speedometer is driven by that transmission output shaft, it will show a reading just above zero rather than zero or a higher value. This slight Reading confirms the PTO system is effectively engaged and turning at idle. If the speedometer were truly at zero while the engine is running and PTO engaged, that might indicate a sensor or drive fault; a reading at moderate or maximum would imply substantial drivetrain rotation, which isn’t the case during stationary PTO operation.

When the PTO is engaged and the transmission is set for stationary operation, the engine is running and the drivetrain is still connected to the PTO. The output shaft of the transmission will rotate at a small rate corresponding to the engine’s idle speed and the PTO gear engagement, even though the wheels aren’t turning. Because the speedometer is driven by that transmission output shaft, it will show a reading just above zero rather than zero or a higher value. This slight Reading confirms the PTO system is effectively engaged and turning at idle. If the speedometer were truly at zero while the engine is running and PTO engaged, that might indicate a sensor or drive fault; a reading at moderate or maximum would imply substantial drivetrain rotation, which isn’t the case during stationary PTO operation.