How do I prevent the power cord from disconnecting? Your Blower Joe SBJ604E has a cord lock feature. Simply feed the top of the cord through the rear opening on the bottom handle of the blower unit, and thread the loop of the cord around the hook. The cord lock feature will now prevent the AC plug from being pulled out during use. Related articles What are the best uses for my SBJ605E Blower Joe? How many cubic feet per minute (CFM) does the vacuum setting on my Blower Joe SBJ605E move? How many miles per hour (MPH) does the blower setting on my Blower Joe SBJ605E produce? What type of extension cord should I use with my Blower Joe SBJ604E? How many cubic feet per minute (CFM) does the vacuum setting on my Blower Joe SBJ604E move?