2. P roblem S olving I nnovator Solving Tomorrows Problems Today 4 th Why / Root Cause Cause & Effect (Fishbone) 4 th Why / Root Cause Cause & Effect (Fishbone) The 4 th Why can be formed once the Team has Completed the 3 rd Why The 4 th Why can be formed once the Team has Completed the 3 rd Why 4 th Why / Root Cause Development 4 th Why / Root Cause Development 4 th Why / Root Cause FMEA 4 th Why / Root Cause FMEA 4 th Why / Root Cause Examples 4 th Why / Root Cause Examples

3. COVER PAGE

4. Developing the 4th Why / Root Cause Determine two Root Causes and the Prevention Method for each Failure Mode Prevention Method & Occurrence Rating A Root Cause can be defined as a Product, Process or Design Weakness that may result in a Failure 4 th Why / Root Cause Development With additional Pop up Aid Enter the Occurrence directly into the cell or select from the possibilities in the drop down options.

5. Developing the 4th Why / Root Cause Select from the other Entries in the Drop Down List of Root Cause’s / Prevention Controls. 4 th Why / Root Cause Development Enter a Root Cause/ Prevention directly into the cell/select from the drop down list if previously entered. Root Causes/ Preventions are automatically added to the database. To Update/Edit/View the Database: Select ‘Add-Ins’, ‘Database Rankings’, ‘Potential Failure Cause DBS’ OR ‘Prevention Control DBS’..

6. RAW MATERIAL MACHININGTAPPING ASSEMBLY/ TEST DESIGN/ APPLICATION D4 - Developing the 4 th Why …Options The 4 th Why defines the Root Cause/s of the 3 rd Why / Failure Mode Option 1: The Process Sequence Example ‘VALVE MANUFACTURING’ 4 th Why / Root Cause Examples

7. POSTURE SPINAL COLUMNMUSCLES NERVES ASSOCIATED ORGANS D4 - Developing the 4 th Why …Options The 4 th Why defines the Root Cause of the 3 rd Why Option 2: Any other logical method or sequence, Example ‘BACK ACHE’ 4 th Why / Root Cause Examples

8. 4 th Why / Root Cause FMEA D4 – 4 th Why = the Root Cause 5 th Why RAW MATERIAL TAPPING ASSEMBLY/ TEST DESIGN/ APPLICATION MACHINING VALVE BODY ADAPTOR CUTTING FLUID SETTINGS Select which Root Cause you would like to Further Investigate 4 th Why / Root Cause Will automatically be updated VISCOSITY SWARF FOREIGN MATTER DIRTY CASTINGS SAND IN CASTINGS

9. D4 - The 4 th Why will be forwarded to the Cause & Effect Diagram. It will appear on the left, according to the Failure Mode you have selected. 4 th Why / Root Cause C&E (Fishbone) RAW MATERIAL MACHININGTAPPING ASSEMBLY/ TEST DESIGN/ APPLICATION

10. P roblem S olving I nnovator Solving Tomorrows Problems Today This completes the D4 4 th Why Now start the D4 5 th Why