Maintenance - Husqvarna 420 Operator's Manual

8 Maintenance

Check and clean the robotic lawnmower regularly and
replace worn parts if necessary to improve operating
reliability and to ensure a longer service life. For further
information on cleaning, see 8.4 Cleaning on page 76.
When the robotic lawnmower is first used, the blade
disc and blades should be inspected once a week. If
the amount of wear during this period has been low, the
inspection interval can be increased.
It is important that the blade disc rotates easily. The
edges of the blades should not be damaged. The service
life of the blades varies immensely and depends for
instance on:
• Operating time and size of the working area.
• Type of grass.
• Type of soil.
• The presence of objects such as cones, windfalls,
toys, tools, stones, roots and the like.
The normal service life is 2 to 6 weeks when used in areas
more than 1,500 m in size and longer for smaller areas.
2
To replace the blades, see 8.7 Blades on page 78.
IMPORTANT INFORMATION
Working with dull blades gives a poorer
mowing result. The grass is not cut clean-
ly and more energy is needed resulting in
the robotic lawnmower not mowing such a
large area.
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MAINTENANCE
2016-03-14 16:59:58