Example 2: Right-hand/ Left-hand Activity Chart In Figure 9.7 in the text, which refers to Example 2.1 in Chapter 2, consider the allocation of time between the right hand and left hand in the activity chart. (a) If the workplace were redesigned using a workholding fixture, and the worker were trained to use both hands simultaneously to perform the task, construct a right-handleft-hand activity chart for the revised method, estimating the amounts of time for each step in the method. (b) What is the percent reduction in cycle time? Solution: (a) Right-hand/left-hand activity chart. This is based on the revised procedure in Example 2.1. See Figure 2.2. Left hand Time Right hand Cum time IF Section 3 Traditional Industrial Engineering Charting and Diagramming Techniques 245 Left Hand Right Hand Pick up board Hold board Hold board Hold board Hold board Hold board Hold board Time (min 0.08 0.06 0.06 0.06 0.06 0.06 0.06 Pick up peg and insert Pick up peg and insert Pick up peg and insert Pick up peg and insert Pick up peg and insert Pick up peg and insert Pick up peg and insert Pick up peg and insert Cumulative time (min) 0.08 0.14 0.20 0.26 0.32 0.38 0.44 0.50 0.56 0.62 0.06 Hold board Hold board Put assembly in tote pan 0.06 0.06 Figure 9.7 Right-hand/left-hand activity chart