Quoted from RussMyers:First, test all 3 Michael servos in Servo Test Mode.
If one is bad, I recommend just replacing all 3 at once, but up to you.
HWN/UM Servo Replacemet
Take the glass off and the balls out
Flip the playfield up and find the bundle of servo wires - cut the zip ties so they are free
Place the playfield back down, place a towel on the playfield
Take the hedges off, they go in a specific order
Detach the wireform and pull it out - take careful note of where the back ends go, that's crucial to getting it to fit back in at the end
Take the Michaels off
Flip the wireform over and clip all or most of the zip ties
Replace all 3 of the servos, one at a time
Zip tie the wires back together just like they were and flip the wireform back upright
Don't put the Michaels back on yet
Turn the game on, it will reset the 3 servos to the Hidden position
Go into servo test and test each servo so you know they are working
Leave them in Hidden position
Turn the game back off
Replace the Michaels (Note - you may have to use the small screws that come with the new servos for this, the old ones may not fit the new servos)
Replace the hedges
Feed the wires back down
And replace the wire form and bolt down
Flip the playfield back up and re-zip the wires neatly
Done
Get this 3-pack
https://www.amazon.com/gp/product/B0874JS7BX/
RussM
Update: Hey, I managed to get the michael servo switched out, I however didnt do all 3 kinda wish I had, however they are all currently working. It is a slight pain, you have to remove the wire ramp and plastic from left side and across the middle the wires feed threw the left plastic piece, so they are actually on top of the playfield but under plastic, Im still newbie at attempting my own repairs but I got it done...