Equipment and process flow (Genba or go see here till Step 8)
Hints: Outline major Equipments and process steps related to the problem.
Use Five Genes for data collection
Go to shop floor, observe actual conditions, collect/verify data and confirm losses.
Do not depend on second-source data.
Japanese Definition
Genba On-site
Genbutsu Actual Object
Gensho Phenomenon
Genri Theory/Principle
Gensoku Rules & Standards