[MrForbes]

If the fit of the gear is right, then using a hammer and some type of round driver, and properly supporting the rear end of the motor shaft, should work fine. A press is nice, but should not be necessary.

Also the FP gear is sintered, isn't it? a good whack of a big hammer on a chold chisel, placed between gear teeth, with the gear laying on a solid metal surface, should split it easily.