Ultimaker UM2 Assembly Manual page 24

12.1. Don't forget to screw
the cable into the heated bed
orientated as in this image.
13. The glass retainers are screwd into
place by 4x M3x8mm screws and 4x
lock nuts.
14. Place the heated bed on the
base plate and place a glass re-
tainer on both corners between
the heater and the spring
15. Screw it down with 3x M3x20 countersunk screws.
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