Quoted from Patofnaud:
Like any blades they can get damaged, if you do not take precautions.
1. Felt on sides of playfield
2. Slip some poster board in between playfield before lifting up/down
3. Just being super careful
4 Have you can level so it does not torque the playfield.
You can also take shooter rod rubbers and install them on the pivots in the game
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