I just ran across this story originally posted here:
http://www.financialexpress.com/fe_full_story.php?content_id=88844

Imagine if every plant had this policy! 

It is written by SUNJAY J KAPUR. The author is CEO, Sona Somic Lemforder Components Ltd.

“A unique lesson from our Japanese collaborators that we have had in our company has been in the area of “Saturday Machine Maintenance”. This essentially involves senior managers participating in the machine cleaning activity on the shop floor.