iRobot Roomba Discovery 4 Series Servicing And Repair Manual page 4

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Assembly Phase
1- Reconnect the connector
for the front bumper with
pliers or fingers.
2- Align the bumper at points (A),
(B) and (C) and push on the
bumper with both hands in
order to insert the bumper into
position.
Chapter 2: How to Open Roomba / Replace Frame
Point (C)
Point (A)
4
Point (B)