How to specify a rate per day regardless of hours worked in a day

Set the crane up as a material resource with the cost set as the cost for 1 day.  When you assign the crane to the task you can set the units to the number of days that you will be using the crane. 

Another idea is to set the crane to be a work resource but put the cost as /day and not the default of /hr.  You can then enter the units ad the number of hours you will be using the crane.  The benefit will also be that you will get a crane schedule and be able to check for conflicts for crane demand.  I teach scheduling for manufacturers and this is the most of the factories are doing this. 

Thank you for the info

I'm not sure if I'm Missing something but lets say I've got a 8.5 hour day and the task takes 10 hours and the crane cost 200 per day if I do it like you say it shows cost as 250 instead of 400 that it should be

Hi Jaco

Set up a hammock with all the tasks using the crane and add the cost to that.

Best regards

Mike Testro

In addition to Mike proposal set special calendar for this hammock (like one work hour (minute) per day at the work day start) and apply crane day cost to this hour (minute). In this case even if the last day is not full you will pay for the whole day as it happens in the real life. To avoid missing the first day add negative lag from the first activity to the hammock start that lasts the work day in hours but has 24 hours/day calendar.