To Mount Screws; To Remove And Install The Body; To Remove And Install The Upper Chassis - Husqvarna Automower 420 Workshop Manual

6.2 To mount screws

It is important to mount the screws correctly. Incorrect
mounted screws may harm the product. The screw
dimension is Torx 20 when there is no other information.
Note: Read the section about how to mount screws in
plastic before starting any maintenance. Refer to
mount screws in plastic on page 39 .
Note: Always use the recommended torque to mount the
Screw fasteners on page 43 .
screws. Refer to

6.3 To remove and install the body

CAUTION: Pull the connector. Do not pull the
cable.
CAUTION: Clean dirt and grass from the
product before you remove the parts.
1. Set the Main switch to
2. Clean the area around the grommets.
3. Pull out the rubber grommet and remove the charge
cable.
4. Only for 430X/430XH/450X/450XH, pull out the
rubber grommet and remove the light cable.
5. Only for 450X/450XH/550/550H, pull out the rubber
grommet and remove the ultrasonic cable.
20 - Repair instructions
To
0 .
6. The body is attached to the chassis at 4 positions. At
each position, hold the chassis with one hand and
remove the front cover with a fast and short pull.
7. Install in opposite sequence.
Note: Make sure the that the grommets are correctly
installed to seal against moisture.

6.4 To remove and install the upper chassis

1. Remove the body. Refer to
the body on page 20 .
2. Remove the 14 screws.
3. Remove the warranty seal at the point of separation
between the chassis halves on the right side.
4. Lift the front end of the upper chassis.
To remove and install
1191 - 001 -