When is the best time to adjust the packing gland in a pump system?

Adjusting the packing gland in a pump system is best done during system shutdown. This is because making adjustments while the pump is operating can be dangerous and ineffective. During operation, the packing gland experiences pressure and fluid dynamics that can complicate the adjustment process and lead to potential leaks or damage. Ensuring the system is shut down allows for a safe working environment and enables the technician to make precise adjustments without the risk of injury or equipment failure.

Additionally, making adjustments during shutdown allows for a proper examination of the packing material and ensures that it is adequately lubricated and seated, which is essential for optimal pump performance. After adjustments are made during shutdown, the system can be restarted and monitored for any changes in performance.