Some key functions of an Oil Pressure Switch in a cotton picker include:

1. Monitoring engine oil pressure: The switch continuously monitors the oil pressure in the engine of the cotton picker. If the oil pressure drops below a safe level, the switch detect this change and trigger a warning signal to alert the operator of the low oil pressure condition.

2. Activating warning lights or alarms: When the Oil Pressure Switch detects low oil pressure, it can activate warning lights on the control panel of the cotton picker or sound an alarm to notify the operator of the issue. This alert prompts the operator to take action to prevent potential damage to the engine.

3. Preventing engine damage: By monitoring oil pressure levels and alerting the operator of any abnormalities, the Oil Pressure Switch helps to prevent engine damage that can occur a result of insufficient oil pressure. This proactive monitoring and warning system can help maintain the long-term health and performance of the cotton picker.