Made a little stand to hold things in place .
Removed cover , chains, check guides etc .( Left side )There is a small collar with a pin through it on the reel shaft against the bearing .
I put a couple of screw drivers in drums so I can get the nut off the drum .Your going to need a long deep socket or make one up by cutting a socket in half and weld a piece of tubing in between . I think they where 1- 1/8 or 1- 1/16 Th .
Starting with #2 because the reel has some end play . I serviced the engine first , plugs, air filter , oil change , fuel stabilizer , oil in cylinder and leave at TDC or BDC so valves are closed clean fuel bowl and run carb dry after shutting valve off . . Spent the rest of the day taking the cutting unit apart . The other 3 units will get regular service and will pull gear case side to check chain and guide wear .