Mechanic Q: how do i get the fan clutch off the water pump pulley?

we removed the 4 nuts that appear to be holding the fan clutch to the pulley & expected it to come off & it didn't

Q: how do i get the fan clutch off the water pump pulley?

we removed the 4 nuts that appear to be holding the fan clutch to the water pump pulley expecting it to come free but its not