Stern 4 bank drop target rest ledge update
In service bulletin 165, Stern suggests fixing drop targets that won't stay latched in the up position with a washer between the drop target mounting bracket and the latch or ledge bar.
This updated rest ledge is about 1.5mm thicker than the original.
https://pinside.com/pinball/forum/topic/star-trek-le-drop-target-wont-stay-upNo.post-2073538
Reference:
545-6163-14 thicker rest ledge
545-6163-04 original rest ledge
Select manufacturer to view game compatibility

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