To reaffirm understanding of the pull signal board, ask the group what does the situation on the left side tell us, and what does the situation on the right side reflect?
Left side = all containers full, production should be halted as system is full (could reflect lowered production requirements, customer is not running part).
Right side = all containers empty, customer is shut down as no material exists in the system.
The card on a hook reflects an empty container. A empty hook reflects a full container. When the operator fills a container he/she takes a ticket off the hook and puts on the container. When an empty container is returned from the customer the card is