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View Full Version : How High Can A CDL Vacuum Regulator Be Safely Set?



Bruce L
03-30-2014, 10:14 AM
Set up the vacuum regulator yesterday morning, backed the adjustment way off to bring the vacuum up to 25" , was leary of going higher for #1- The pump is a De Laval 76 with flood kit, and # 2-The spring mechanism seemed to be pretty loose that I was worried about something letting loose and heading to the pump. I would like to go higher with the vacuum, ran at 28" last year, but a lot of smoking issues with the pump and overheating of the electric motor. This year I have an old furnace fan blowing on the pump, seemed to help considerably yesterday.

spirit lake sugar
03-31-2014, 11:45 AM
do you know the pump temp

Bruce L
03-31-2014, 09:08 PM
How would I get the pump temperature, or do you mean can I touch it safely without getting burnt?