Tighten the handle on the crank puller until the arm and gears slide off of the axle.

The crank puller works by locking into the threads on the arm and pushing against the Isis drive axle to pry the arm and gears off. Make sure you are using the correct size crank puller, otherwise this step will not work.

During reassembly, add some grease to the axle to make it easier to remove the arm in the future.