The housing for the gears? You have to take the blower side off first, than take off the blades. And there sould be three bolts on the gear box, take them out and whack it with a ruber mallet.
I got this from an old farmer, I offered him $20.00 but he said, just take it. All the parts are there the teath on the gears ar all there, and once I sand blast it, it will look good as new. What color is the proper color for this brand of blower? :D :D
Get a chunck of pipe that the sword can fit into, seal one end put the sword in. Then crush some charcoal to dust and pack that all around the blade untill the pipe is almost full, put in some cardboard and seal the ather end. Bild a big fire and toss it in. Let it sit in the fire until the pipe is red hot and keep it red hot for about an hour then quench it in a barral of water.