If you haven't already taken the old one out, it's not too hard but be careful and don't bend the copper lines too much when you swing the condenser out. Only swing it out enough to remove the motor.
All you have to do is remover the 4 screw holding the fan motor mounting plate to the evaporator housing. Remove the 2 screw holding the "L" bracket to the tray at the back of the motor. These 2 are short screws and need to go back in the same location.
Then remove the screws holding the condenser coil and fan shroud. There are 4 very short screws that hold the shroud to the bottom tray. Sometimes they are hidden with rust and gunk. Yours seems to be clean.
When you re-assemble, those short screw need to go back in the same places. If you get a longer screw in there it could hit the rubber roofing.
You can then swing the condenser outward, away from the fan blade and you should be able to take the motor out and down to a bench to swap the squirrel cage, fan, L bracket, and mounting panel.
Measure the distance of the fan and squirrel cage from the motor housing. I use a strip of emory cloth and clean the shafts up, even though the motor is bad, that way I don't damage the fan or squirrel cage getting them off the shafts. Clean the fan and squirrel cage while there off. It's easier. When re-assembling, put the fan and squirrel cage back on the motor shafts at about the same distance that you measured before taking them off.
Take pictures how it's assembled and of the wiring and you shouldn't have a problem putting it back.
I've found that the start caps terminals on some capacitors are soldered on a wire sticking out of the plastic housing. Better hold those with needle nose pliers while you pull the wire terminals off. It doesn't matter which of the brown wires go on which terminal. Cut the wire crimp-on's off. I use standard screw on wire nuts to re-connect the wires, just make sure they are tight.
re-assemble and you're done.
Good luck,
