Raise the hood on the 4600, and set the hood props.
Rotate the handle or fuel shut off valve on the filter housing, so that the fuel is shut off to the filter.
Rotate the filter holding ring counterclockwise, using your hand wrapped in a rag for leverage. Use a set of large channel locks to remove the ring only if needed. Do not apply too much pressure to the ring, because you may crack or break the ring.
Pull the ring downward with one hand, while supporting the weight of the fuel filter cover with your other hand. Do not let the filter cover fall.
Installation is the opposite of removal for the fuel filter holding ring. Tighten the ring snug. No torque is necessary. Turn the fuel shut-off valve back to the open position to allow fuel to the filter.