I got the Dillon tumbler back from having the motor upgraded, though I am not sure if it was an up grade. The guy that I talked to told me the new motors get hot and I told the guy that I used to let it run 6 to 8 hours all the time and sometimes I would forget it and it would run all night. He said he would not let his run for more than 4 hours. I though that I would look into a timer for a safety devise, that I could let it run 4 hours and be off for 2 then start up again and cycle like that for several cycles. I looked at timers on Amazon and only saw timers that were set up to come on at a specific time of day and them shut off. Could they be set up to do 4 on then 2 or 3 off over and over till i shut the tumbler off? Sending this to Arizona and paying for it to be fixed and shipped back is not something I ever want to do again. I want to be careful with it and any and all suggestions will be appreciated.