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Terry,OH · 04-29-2024, 06:11 AM

The BB- pulley is smaller because big trucks usually do not operate at high RPM the smaller pulley will increase generator output at lower RPM keeping the battery charged.

04-29-2024, 06:11 AM	#15
Terry,OH Senior Member Join Date: May 2010 Posts: 4,789	Re: Generator and Fan The BB- pulley is smaller because big trucks usually do not operate at high RPM the smaller pulley will increase generator output at lower RPM keeping the battery charged.