Maintenance - Husqvarna 531RB Operator's Manual

To cut the grass
1. Make sure that the trimmer line is parallel to the
ground when you cut the grass. (Fig. 61)
2. Do not push the trimmer head to the ground. This
can cause damage to the product.
3. Move the product from side to side when you cut
grass. Use full speed. (Fig. 62)
To sweep the grass
The airflow from the rotating trimmer cord can be used
to remove cut grass from an area.
Introduction
WARNING: Before you do maintenance, you
must read and understand the safety
chapter.
Maintenance schedule

Maintenance

Clean the external surface.
Examine the harness for damages.
Do a check of the throttle trigger lockout and the throttle trigger, see
check of the throttle trigger lockout on page 14 .
Make sure that the cutting attachment does not rotate at idle speed.
Do a check of the stop switch, see
Examine the cutting attachment guard for damages and cracks.
Make sure that the grass blade is aligned with the center, that it is sharp and
does not have damages on the blade or the center hole.
Examine the trimmer head for damages and cracks. Replace if it is damaged.
Examine the handle and handlebar for damage and make sure that they are at-
tached correctly.
For cutting attachments with a support cup, tighten the locking screw fully.
For cutting attachments with a locknut, tighten the locknut fully.
Examine the transport guard for damage and make sure that it can be attached
correctly.
Examine the engine, the fuel tank and the fuel lines for leaks.
Clean the air filter. Replace if it is necessary.
Tighten nuts and screws
Examine the fuel filter for contamination and the fuel hose for cracks and other
defects. Replace if it is necessary.
Examine all cables and connections.
20
Maintenance
To do a check of the stop switch on page 14 .
1. Hold the trimmer head and its cord parallel to the
ground and above the ground.
2. Apply full throttle.
3. Move the trimmer head from side to side and sweep
the grass.
WARNING: Clean the trimmer head cover
each time you assemble new trimmer cord
to prevent unbalance and vibrations in the
handles. Also do a check of the other parts
of the trimmer head and clean it if
necessary.
For all servicing and repair work on the product, special
training is necessary. We guarantee the availability of
professional repairs and servicing. If your dealer is not a
service agent, speak to them for information about the
nearest service agent.
To do a
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907 - 003 - 23.04.2019