One of the greatest of all writers about our American government, and the dangers it faced, was the French writer and historian, Alexis de Tocqueville. He toured all of America in the early 1800s, and after some years wrote the great two volume book, Democracy in America.
A fan clutch is supposed to be a fluid coupling device that allows the fan to rotate less than the engine speed. The fan clutch should engage before the engine gets up to 220F. A standard cooling system fan clutch should spin at 33% of water pump speed (RPM) when not engaged and 75% of water pump RPM when engaged. A heavy duty cooling system fan clutch should spin at 33% of water pump speed (RPM) when not engaged and 90% of water pump RPM when engaged. Unfortunately, a fan clutch can slowly empty its coupling oil overtime and often seizes. (the oil also can gel/thicken and grab).
(some really old models only have 4). Step 4: Place the vacuum belt around the motor shaft first. Then roll it onto the brush roll pulley. Give it a extra few turns to make sure its seated correctly. See my guide for Brush roll problems if the brush roll is hard to turn.Step 5: Put it back together and vacuum the floors.some really old models only have 4). Step 4: Place the vacuum belt around the motor shaft first. Then roll it onto the brush roll pulley. Give it a extra few turns to make sure its seated correctly. See my guide for Brush roll problems if the brush roll is hard to turn.