Chauter
6
Maintenance and Transportation
Routine Cleaning ....................................................................
Maintenance and Transportation
6 - 2
6 - 2
6 - 2
6 - 4
6 - 6
6 - 7
6 - 1 0
6 - 1 4
6 - 1 4
6 - 1 6
6 - 1 7
6 - 1 9
6 - 2 0
6-21
6 - 2 2
6 - 2 2
6 - 2 5
6-1