Husqvarna Automower 550 Workshop Manual page 33

CAUTION: A 5 mm sealing strip must be used.
Sealing may be deficient if the wrong sealing
strip is used.
1. Start by laying one end of the sealing strip in line
with the marking on the chassis.
2. Continue laying the sealing strip clockwise around
the lower chassis.
3. Lay the other end of the sealing strip above the first
end and then out of the channel. Fasten the sealing
strip in the retainer.
1541 - 001 - Repair instructions - 33