Husqvarna LC 451S Operator's Manual page 78

Cutting equipment
WARNING! Always wear heavy-duty
!
gloves when servicing and maintaining
the cutting equipment. The cutters are
very sharp and cuts can occur very
easily.
• Check the cutting attachment for damage or cracks. A
damaged cutting attachment should always be
replaced.
• Always ensure the cutter is well ground and balanced
correctly.
CAUTION! The blades should be balanced after
sharpening. Balancing, replacing or sharpening the
blades should be conducted by a service workshop.
Damaged blades should be replaced when hitting
obstacles that result in a breakdown. Let the service
centre assess whether the blade can be sharpened or
must be replaced.
Dismantling
WARNING! Prevent unintentional starting
!
by removing the ignition cable from the
spark plug.
• Lock the blade with a wooden block. Loosen the blade
bolt and remove the blade bolt, the washer and the
blade. Remove the blade bolt by turn the bolt counter-
clockwise.
• Make sure the blade bracket is free of damage. Also
check that the cutter bolt is undamaged and that the
engine shaft is not bent.
78 – English
MAINTENANCE
Assembly
• The blade must be mounted with the angled ends
pointing up towards the cover.
• Place the cutter with the friction washer against the
cutter bracket. Make sure the cutter centres correctly
on the shaft.
• Lock the blade with a wooden block. Fit the washer
and tighten the bolt correctly by turning clockwise. The
bolt should be tightened with a torque of 80 Nm.
• Pull the blade around by hand and make sure it
rotates freely.
• Test run the machine.
IMPORTANT!
Always exercise care and use your common sense.
Avoid all situations which you consider to be beyond
your capability. If you still feel uncertain about operating
procedures after reading these instructions, you should
consult an expert before continuing. Contact an
authorised service workshop.
Always use genuine parts. For more information, see
the "Technical data" section.