Williams Motor Manufacturing assembles small motors for sale to major appliance manufacturers around the world. Average demand for its best selling motor is 600 units per day. The assembly line operates continuously during a single eight hour shift. The tasks required, task times, and precedence relationships are:

a. Draw the precedence diagram.
b. What is the takt time?
c. What are the theoretical number of workstations?
d. Assign the tasks to the workstations to balance the line using the longest operating time rule.
e. What is the efficiency of the balanced line?
f. If demand increases to 650 motors per day, what changes would be needed, if any?

Transcribed Image Text:

Task Time (seconds) Predecessor 12 20 20 18 30 17 25 20 B. D F, G