The hardest part is removing the axle nuts. You'll want to do this with everything still on the machine (tires, hubs, brakes). Once you get the axle nuts on both sides loose then you can jack it up and start removing the wheels and hubs (30mm on the hub nuts). The rear brake has to be removed, once you remove the axle nuts on that side and washers there is an o-ring that sits between the axle and the brake drum - remove that. Take the cables and vent line off and remove the 4 nuts on the brake panel (if the brakes need work take them completely apart). You should be able to slide the brake assembly off of the axle (might take a few taps from a hammer to get it started).
On the left side remove the wheel, hub, axle nuts, washer, spacer and there is another o-ring between the axle and the differential gear splines but that one is sometimes tough to get out. With the o-ring removed or not you should be able to pull the axle out towards the brake side and go back together.
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