The crane driver is recorded in the Time sheet with a crane and a reason to call you a mailing telling owner kanokwan by specifying the date and time clearly and tell them again when the crane can go back to work.
Valet operators will be recorded in the Time sheet crane and why. The call to notify owners by mail Kanokwan date, time, clearly. And again when the crane can resume.
Crane driver to record in the leaves Time sheet crane and identify reasons and call you to send เมล์แจ้ง including the owner, stating the obvious. And inform again when the crane can be back to work.